Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Research and development of solar beam power generation and utilization systems and ancillary technologies (Investigations and researches on large-size energy supply system); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (ogata energy kyokyu system no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

With an objective to propose large-size system development scenarios assuming installations in deserts, the following investigations have been carried out: (1) collection of data on societies, economy, and energies in China and other countries where the large systems are assumed to be installed, (2) in order to reduce the costs, comparison was given on power generation cost by using a fixed tracking frame, a single axial tracking frame, and a biaxial tracking frame, (3) in order to evaluate the life cycle, discussions were given on the required energy inputs for system equipment, transmission and transformer equipment, and the installation construction to estimate the energy payback time (EPT) and CO2 emission unit requirement, and (4) discussions on development scenarios. In Item (1), while China expects on natural gas and atomic energy as the supply source, 80% of the energy would be supplied from coal in 2010. The development of new energies in India would further be delayed than in China. In item (2), the trially calculated power generation costs in Mongol by using the fixed frame, single axial tracking frame, and biaxial tracking frame were 8.72, 8.23 and 6.94 yen per watt. In Item (3) The EPT was two years or less in a 100-MW system, and the CO2 emission unit requirements in the silicon systems were 10 to 19 kg-C/kWh. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Research and development of solar beam power generation and utilization systems and ancillary technologies (Investigations and researches on evaluations of photovoltaic power generation); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (taiyoko hatsuden hyoka no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Values given to global environment and economy by utilization of photovoltaic power generation are evaluated, and quantified to make clear the significance of the utilization thereof. Specifically, trial calculations were performed on LCA and damaging characteristics of photovoltaic systems, and reducible amount of carbon dioxide emission. Taking up thin film CdTe cells as the object, estimation was made on the energy payback time (EPT) and CO2 emission amount. The production scale ranges over 10 MW/ 30 MW/ 100 MW annually, the useful life is 20 years, and the unit requirement for CO2 emission originated from the charged electric power is 114 g-C/kWh. The EPT was 1.74 in the annual production of 10 MWp, 1.08 in 100 MWp, the unit requirement for CO2 emission was 14.0 in the annual production of 10 MWp, and 8.9 in 100 MWp. This is one of severals of that in the existing power supply source. For heavy metals, particularly Pb, the trial calculation resulted in 0.15 g/Wp in the crystalline type, and 0.1 g/Wp in the amorphous type. The problem therewith is separation and recovery. The reducible amount of carbon dioxide, or in other words, the amount of power that can be generated latently is 37,235 GWh/year, or 3.10 million tons when converted into carbon dioxide. (NEDO)

Development of hot water utilizing power plants in fiscal 1999. Development of binary cycle power plant (Development of system to detect well bottom information when geothermal hot water is excavated); 1999 nendo nessui riyo hatsuden plant nado kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (chinetsusei kussakuji kotei joho kenchi system no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Developmental research has been performed on the MWD system to identify on the real time basis the information about well bottom when geothermal hot water is excavated (azimuth, inclination, pressure and temperature). This paper summarizes the achievements in fiscal 1999. In the developmental research on the detection device, attempts were made in improving the zonde, and enhancing its heat resisting performance. In addition, data were acquired on electronics parts as a result of the heat resistance identifying test. For the on-the-ground devices, improvement was made to add the experiment analyzing program with a program to remove the downhole motor pressure noise. The pressure noise during excavation in the actual wells was collected. In the analyzing system, use of PC, improvement, and operation check were performed on the well trace projecting and indicating system. Operation of the well trace estimating system was checked by using the actual data in order to prepare the operation manual. With regard to the well evaluation supporting system, improvement, operation check and that by using the actual data were executed on the PC version temperature analyzing system. Performance of the zonde was verified by the actual geothermal well test. (NEDO)

Development of large scale and wind energy conservation system. Operational studies on a large-scale wind energy conservation system; Ogata furyoku hatsuden system no kaihatsu. Ogata furyoku hatsuden system no unten kenkyu

Energy Technology Data Exchange (ETDEWEB)

Takita, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

Described herein are the results of the FY1994 research program for operational studies on a large-scale wind energy conversion system. A total of 8 domestic and foreign cases are studied for wind energy conversion cost, to clarify the causes for higher cost of the Japanese system. The wind power systems studied include Japanese (5 units at Tappi Wind Park, the same type supplied by company M), US (California Wind Farm, 300 units) and UK (Wales Wind Farm, 103 units) systems. The investment costs are 639, 285 and 189 thousand yen/kW for the Japanese, US and UK systems, respectively. It is also revealed that the power plant itself and assembling costs account for a majority (70 to 88%) of the total investment cost. The higher cost of the Japanese system results from a smaller number of units installed, and the power plant cost can be drastically reduced by mass production. Increasing size also reduces cost greatly.

Achievement report for fiscal 2000 on New Sunshine Project aiding program. Development of hot water utilizing power generation plant (Technological development of hot rock power generation system - development of elementary technologies); 2000 nendo nessui riyo hatsuden plant to kaihatsu seika hokokusho. Koon gantai hatsuden system no gijutsu kaihatsu (yoso gijutsu no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

In order to identify the possibility of a hot rock power generation system, technological R and D has been performed on structuring of a man-made hydrothermal system, fracture mapping, downhole measurement and a circulating extraction system. This paper summarizes the achievements in fiscal 2000. With regard to the long-term circulating extraction test, a circulating heat extraction and test device was installed at the hot rock experimental field in the Hijiori area in Yamagata Prefecture, where geochemical data collection and tests including analyses thereon have begun. In reservoir bed analysis, a well module was incorporated into a reservoir bed simulator to improve the module so that comparison with the data of actual production on the ground can be performed. For the fracture mapping, AE having been observed during the long-term circulation test was analyzed, whereas it was estimated that the seismic source would not move or expanded during this period. A PTS logging has been performed during the long-term circulation test to investigate characteristics of the flow-out zone of the injection well and the production zone of the production well. In making the fracture model, an initial model was fabricated to estimate heat extraction behavior in the long-term circulation test. (NEDO)

Electric power of residential photovoltaic power system; Jutakuyo taiyoko hatsuden system no hatsudenryo

Energy Technology Data Exchange (ETDEWEB)

Asano, K.; Kawamura, H.; Yamanaka, S.; Kawamura, H.; Ono, H.; Hayashi, K.; Naganawa, H. [Meijo University, Nagoya (Japan); Asai, H.

1996-10-27

Measurement was done on the annual power generation of a residential photovoltaic power system that was most suitable for the present situation in utilizing solar energy; and an examination was made on the basis of the data of a module in which an optimal operation load control was separately installed in order to operate the system more effectively. As a result, it was found that the introduction of a 3kW class system was currently most desirable as a residential photovoltaic power system, and that the problem of the optimal operation load control was crucial for the more efficient power generation. The resistance value of the optimal operation load was stable between 6 and 8 ohm in the daytime in fine weather. However, it was observed that, where no sufficient insolation was expected, the optimal operation load was ten times as much as in fine weather, being easily influenced by the environmental elements. In addition, it was revealed that, if the operation load was fixed at a specific value (6 ohm) in a clear day, the power generation was only about 85% compared with the case of controlling the optimal operation load. This figure was obtained under comparatively favorable conditions, however. 8 refs., 7 figs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Research and development of solar beam power generation and utilization systems and ancillary technologies (Development of ancillary devices for AC modules); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (AC module yo shuhen sochi no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Reasonability evaluation was progressed on the fundamental technologies having been proposed in fiscal 1998, and development was made on elementary technologies required for system structuring. The proposals made in fiscal 1998 include the deepening of the evaluations on effectiveness of AC modules, long-term stability evaluation on the system control schemes, trial fabrication and evaluation on AC battery modules, and development and installation of 2-kW demonstration facilities. In the effectiveness evaluation, discussions were given not only on advantages, but also on disadvantages. As the advantageous point, theoretical analyses were progressed on the effect of reducing the output drop due to shading, which was made clear by providing values. Effects of increase in switching units on electric wave interference as a disadvantage were made clear. As a form that can be applied consistently from an independent power source to a system coordination system, a flexible system using the module system comprising of AC modules and AC batteries was proposed as an effective utilization measure. A proposal was also made on an autonomous discrete type system control scheme as a control system that has sufficient expandability, and is durable against disasters. (NEDO)

Fiscal 1981 Sunshine Project research report. Development of hydrothermal power plant. Development of binary cycle power plant. Conceptual plant design; 1981 nendo nessui riyo hatsuden plant no kaihatsu / binary cycle hatsuden plant no kaihatsu seika hokokusho . Plant gainen sekkei

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

Conceptual design was made on a 10MW class binary cycle power plant for a demonstration plant superior in reliability and profitability, under most realistic current geothermal field conditions. In the design, study was made on heat balance, main pipe system, equipment allocation, and electric system for a plant system configuration, and study was also made on preheater, evaporator, condenser, turbine and others for plant component equipment. Further study was made on optimization of mist cooling condenser, instrumentation, control, utility, and environmental measures. The following basic data were obtained through the conceptual design: plant inlet hot water temperature: 130 degrees C, plant outlet hot water temperature: 70 degrees C, hot water flow rate: 1,415t/h, working fluid: R-114, R-114 pressure in evaporator: 11.98kg/cm{sup 2} abs, R-114 evaporation temperature: 91.1 degrees C, R-114 condensation temperature: 31.0 degrees C, R- 114 flow rate: 2,265t/h, site area: 106.5m x 102.4m, building area: 48.7m x 16.8m, and building height: 13.0m. (NEDO)

Research and development of system to utilize photovoltaic energy. Survey on the specific purpose modules; Taiyoko hatsuden riyo system no kenkyu kaihatsu. Taiyoto module ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the survey results on the specific purpose modules for photovoltaic power generation in fiscal 1994. (1) On the feasibility survey on new application fields, it was clarified that photovoltaic power generation is applicable to extensive areas such as farmland, road, railway and public facility as latent demand sites. (2) On the optimum modules for various specific purposes, the structure, production method, cost estimation and issues of various modules were studied for desert, wasteland, coast, ocean, river, embankment, railway, road, mobile facility and arcade. (3) On the survey on new materials and material development, various conventional materials and materials promising for required performance were surveyed for every application. (4) On the survey on technology trends, the survey members participated in the first international photovoltaic energy conversion conference and the photovoltaic power generation workshop, while the members held the 1st-5th specific purpose module subcommittees. 1 tab.

Simulation of stand alone PV systems; Dokuritsugata taiyoko hatsuden system no simulation

Energy Technology Data Exchange (ETDEWEB)

Tsuda, I.; Sakuta, K. [Electrotechnical Laboratory, Tsukuba (Japan); Oshiro, T. [Japan Quality Assurance Organization, Tokyo (Japan); Kurokawa, K. [Tokyo University of Agriculture and Technology, Tokyo (Japan)

1997-11-25

Studies are performed to develop a simulation program for a stand-alone photovoltaic power generation system equipped with a lead acid battery. In this stand-alone photovoltaic power generation system, the load is connected in shunt with the solar cell array output through the intermediary of a lead acid battery and inverter. The program is a model in which the solar cell model is built taking parallel resistance into account, and the temperature-dependence of the constants is described using approximations experimentally obtained by Solar Techno Center of JQA (Japan Quality Assurance Organization), Hamamatsu. Insolation data for the model is described using METPV compiled by Japan Weather Association, and load data is described using data actually measured at Shizuoka. This program is compared with the data of operation at Hamamatsu, and the result is almost satisfactory. Simulations are conducted at five typical locations in Japan using this program, and it is found that the array load matching correction factor is dependent on seasonal changes rather than locality, that the battery contribution rate does not change much throughout the year, and that it is not dependent on locality. 5 refs., 7 figs., 3 tabs.

Design manual of the wind power system; Furyoku hatsuden system no sekkei manual

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

For the purpose of contributing to the promotion/introduction of the wind power generation in Japan, systematical arrangement was made on items, standards/related laws, etc. to be considered upon designing the wind power system, further describing design examples of the standard system (case study). Out of the items necessary for the design, as to the investigation, arranged were matters and methods to be field-surveyed such as the site situation, surroundings, radio wave hindrance, noise hindrance, measurement, geology, etc. Concerning the determination of sizes of wind turbines to be introduced, procedures for setting sizes of wind turbines suitable for the places proposed for the installation were described. In the design, the knacks were summed up of designing wind power generation facilities, electric equipment, electric works, civil engineering, and measuring instrument. As to the working plan, indicated were the points to be taken notice of in the plan and the standard working process. Also shown were the evaluation method of economic efficiency, etc. In addition, the paper includes the related laws, system design examples, and the data attached. 10 refs., 13 figs., 59 tabs.

Study on closed cycle MHD generation systems; Closed cycle MHD hatsuden system no kento

Energy Technology Data Exchange (ETDEWEB)

NONE

1988-03-01

The closed cycle noble gas MHD generation systems are surveyed and studied. The concept of closed cycle noble gas MHD generation is confirmed to extract high enthalpy, and now going into the engineering demonstration stage from the basic research stage. These systems have various characteristics. The highest working temperature is around 1,700 degrees C, which is close to that associated with the existing techniques. Use of helium or argon gas as the working fluid makes the system relatively free of various problems, e.g., corrosion. It can attain a much higher efficiency than the combined cycle involving gas turbine. It suffers less heat loss in the passages, is suitable for small- to medium-capacity power generation systems, and copes with varying load. The compact power generation passages decrease required size of the superconducting magnet. The technical problems to be solved include optimization of power generation conditions, demonstration of durability of the power generation passages, injection/recovery of the seed material, treatment of the working gas to remove molecular impurities, and development of heat exchangers serviceable at high temperature produced by direct combustion of coal. The conceptual designs of the triple combined system are completed. (NEDO)

Simulation of stand alone PV system; Dokuritsugata taiyoko hatsuden system no simulation

Energy Technology Data Exchange (ETDEWEB)

Kondo, H; Ogawa, H; Sekii, Y [Chiba Institute of Technology, Chiba (Japan); Tsuda, I; Nozaki, K [Electrotechnical Laboratory, Tsukuba (Japan); Kurokawa, K [Tokyo University of Agriculture and Technology, Tokyo (Japan)

1996-10-27

In order to evaluate the simulation results of a photovoltaic power generation system, an operation simulation was carried out using the actual measured data of a stand alone PV system in Miyakojima, Okinawa Prefecture, so as to make a comparison with the actual operation data. The electric power was supplied to 250 houses and primary/junior high schools in the surrounding villages, which had an average demand load of approximately 90kw and the maximum of approximately 200kw. The power was supplied through the PV power generation in the duration of the sunshine, with an excess power charged in storage batteries and then supplied from the batteries at night. The array capacity was made 750kWp, the output current and storage batteries being characteristic type with an actual efficiency curve used for the inverter. The weather data used were the actual inclined insolation quantity and the outside air temperature data for a period of one month of November. The power charged in excess of 100% in the batteries was termed as an overflow power. With the charging condition 30% or less, a diesel generator was run for a rated operation for one hour, the power of which was termed as a backup power. As a result, the simulation was found nearly in agreement with the actual measurements. 5 refs., 7 figs., 2 tabs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Demonstrative research on photovoltaic power generation system (Research on multi-hybrid photovoltaic power generation system); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system no jissho kenkyu (taiyoko hatsuden multi hybrid system no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

A multi-hybrid system integrating photovoltaic and wind power generation systems with the existing diesel engine power generation system was assumed for installation in power systems in islands. System analyzing simulation and economic performance analyses were performed to consider system configurations suitable for islands from the viewpoints of system stability and economic performance. The work was progressed by dividing the subject into (1) research on the system configurations, and (2) studies on the economic performance. In performing either work, the power demand was classified as large (in Miyako Island), medium (in Kume Island) and small (in Tarama Island), and the introduction years into 1997, 2000, and 2005. In Item (1), the system parameter specifications were put into order, and the system analyzing simulation was performed, wherein it was verified that the system will be stabilized by introducing a system stabilizing equipment (batteries and an inverter) and by limiting the output from the wind power generation. In Item (2), it was made clear that the power generation cost is equivalent to or lower than the present cost, making reduction in fuel consumption possible. It was also disclosed that the introduction is most effective in small islands, and drop in the power generation amount due to limiting the output from the wind power generation is small. (NEDO)

Design of photovoltaic generation systems for lean-to greenhouses; Katayane onshitsuyo taiyoko hatsuden system no sekkei

Energy Technology Data Exchange (ETDEWEB)

He, D; Kozai, T [Chiba University, Chiba (Japan). Horticulture Faculty

1997-11-25

Outlined herein are characteristics of solar radiation permeation in lean-to greenhouses provided with photovoltaic (PV) arrays on part of their roofs, and estimated quantities of power generated by the PV systems for different districts, seasons and cell areas. Three types of PV systems were followed; system 1: single-crystalline silicon, system 2: amorphous silicon, monolithically combined with the roof, and system 3: film-shape amorphous silicon. Annual quantity of power generated by these systems tends to increase as latitude decreases. They show an annual energy conversion efficiency of 10.3, 5.1 and 2.1%, respectively. Efficiency is unaffected by direction of the building on which the PV system is installed at low latitudes, as long as it is within {+-} 30deg around the east-west direction. At high latitudes, it is preferably in the east-west direction. For the PV system covering 30% of the roof area at a north latitude of 35deg, light received by plants in the greenhouse is fairly unaffected by the system throughout the year. These systems show a yearly solar energy utilization efficiency of 49 to 59, 46 to 55 and 44 to 53%, respectively, when they cover 60% of the roof area. 5 refs., 6 figs, 2 tabs.

Load averaging system for co-generation plant; Jikayo hatsuden setsubi ni okeru fuka heijunka system

Energy Technology Data Exchange (ETDEWEB)

Ueno, Y. [Fuji Electric Co. Ltd., Tokyo (Japan)

1995-07-30

MAZDA Motor Corp. planed the construction of a 20.5MW co-generation plant in 1991 for responding to an increase in power demand due to expansion of the Hofu factory. On introduction of this co-generation plant, it was decided that the basic system would adopt the following. (1) A circulating fluidized bed boiler which can be operated by burning multiple kinds of fuels with minimum environmental pollution. (2) A heat accumulation system which can be operated through reception of a constant power from electric power company despite a sudden and wide range change in power demand. (3) A circulating-water exchange heat recovery system which recovers exhaust heat of the turbine plant as the hot water to be utilized for heating and air-conditioning of the factory mainly in winter. Power demand in MAZDA`s Hofu factory changes 15% per minute within a maximum range from 20MW to 8MW. This change is difficult to be followed even by an oil burning boiler excellent in load follow-up. The circulating Fluidized bed boiler employed this time is lower in the follow-up performance than the oil boiler. For the newly schemed plant, however, load averaging system named a heat accumulation system capable of responding fully to the above change has been developed. This co-generation plant satisfied the official inspection before commercial operation according the Ministerial Ordinance in 1993. Since then, with regard to the rapid load following, which was one of the initial targets, operation is now performed steadily. This paper introduces an outline of the system and operation conditions. 10 refs.

Research and development of photovoltaic power system; Taiyoko hatsuden system no jissho kenkyu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the result obtained during fiscal 1994 on a demonstration research on photovoltaic power generating systems. Solar cells with an output of 750 kW, storage battery facilities with an output of 3,058 kWh, three DC-AC converters with a rating of 250 kW, and a diesel generator with an output of 300 kW having been installed up to the previous fiscal year were combined to perform comprehensive adjustments and tests such as battery charge/discharge tests and AC parallel operation tests. The battery charge/discharge tests revealed that the 10 hour rate discharge capacity meets the specifications, and the batteries are free of deterioration after a demonstration operation of about 4.5 months. Difference between the power generation record and the planned value is thought due to the following reasons: the array output data in a power line connected system come about 90% of the simulation result due to correction coefficient for the solar cell conversion efficiency; the inclined face insolation results in less by about 7% than the planned value, and the transmittable power amount less by about 14% in total; the load power amount is less by about 7% than the planned value; and the balance supplementing power factor increases by about 4%. 5 figs., 2 tabs.

Survey on the cost of the photovoltaic power system; Taiyoko hatsuden cost chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Comparisons were made of the power generation cost in Indonesia and Thailand between the photovoltaic power system and other power systems. From the difference in technical standards with Japan, trially calculated were the amount of the potential introduction and the possibly reduced cost. In Indonesia, a plan has started for the introduction of a 50W system to 1 million houses in the unelecrified area, but the introduction has not been so promoted as planned. In Thailand, a plan is being carried out for the introduction of the battery charge station system, but the introduction has remained small-scaled. Comparisons were made among the solar home system in Indonesia, the battery charge station system in Thailand, the diesel engine power generation, and the grid connection with the existing power distribution system. The result concluded that the solar home system is low-priced though it depends on the distance from the existing distribution line and the power consumption amount. Moreover, it was found that the system would be more economical than in the case of Japan if obeying international standards for the photovoltaic power system. 6 refs., 15 figs., 56 tabs.

Development of solar power generator system; Taiyoko netsufukugo hatsuden system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Kisara, K; Kumagai, T; Niino, M; Chen, L; Eguchi, K [National Aerospace Laboratory, Tokyo (Japan)

1997-11-25

Described herein is a new hybrid solar power generator system, in which solar energy is separated into the light and heat components by a wavelength-selective filter before being directly converted into electric power, the former for the amorphous solar cell (ASC) unit and the latter for the thermoelectric unit. These units complement with each other to enhance overall efficiency. The ASC unit should have a higher efficiency when it works on the light component, because the heat (infrared) component increases cell temperature and decreases its output. For the ASC unit, the effects of the filter have been tested. The thermoelectric unit, generating power by the Seebeck effect, should have a higher efficiency, if heat flux passing through the unit can be increased, because of increased temperature differential, to which voltage produced increases proportionally. For the thermoelectric unit, heat is collected by a parabolic mirror unit from sunbeams received by a heliostat. Characteristics of these units are grasped almost as expected by the tests. 4 refs., 11 figs., 1 tab.

Achievement report for fiscal 2000 on New Sunshine Project aiding program. Development of hot water utilizing power generation plant (Development of binary cycle power plant - development of system to detect well bottom information during geothermal well drilling); 2000 nendo nessui riyo hatsuden plant to kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (Chinetsusei kussakuji koutei joho kenchi system no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

R and D has been performed on a system to detect well bottom information during geothermal well drilling (MWD) to identify items of well bottom information during drilling on a real time basis. This paper summarizes the achievements in fiscal 2000. This device measures and transmits to the ground surface the following items during geothermal well drilling at good accuracy under the mud water temperature of 200 degrees C: azimuth, inclination, tool face, bit load, bit torque, temperatures in the device, downhole temperature, and downhole pressure. The current fiscal year has performed improvement of the sonde, including decrease of the sonde length, electric power conservation, enhancement of anti-noise performance, and enhancement of operability. For the sonde performance evaluation, high-temperature test, long distance loop test, and vibration test were carried out. In addition, the experiment analyzing program (for noise processing) was improved. With regard to the well trajectory control aiding system and the well evaluation aiding system, an operation manual was prepared, entitled the 'MWD analyzing system'. Unification was attempted on the hardware of the ground surface detection device system and the analyzing system. (NEDO)

Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Research and development of photovoltaic system evaluation technology (Research and development of system evaluation technology - Photovoltaic system data book, separate volume); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu (system hyoka gijutsu no kenkyu kaihatsu bessatsu (taiyoko hatsuden system data shu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In the research and development of photovoltaic power generation system evaluation technology, great progress has been achieved in performance improvement and cost reduction as far as constituent devices such as power modules and inverters are concerned. In the designing of systems, however, quantitative elucidation of loss and power reduction factors remains insufficient. Under the circumstances, several types of photovoltaic power generation systems expected to be put to practical application in the future are taken up, test facilities are constructed which simulate them, and data are collected. The thus-collected data are utilized for research and development of evaluation techniques necessary for the improvement of photovoltaic system efficiency, such as design parameter quantification, databasing and utilization thereof, and simulation technologies, for the establishment of technologies for optimum designs and optimum operations. The data book accommodates data, arranged in an easy-to-use fashion, collected about verification test facility (interconnected systems, independent systems, and water pump systems) operation, weather conditions, and residential photovoltaic power generation systems. (NEDO)

FY1999 technological development of wind power generation systems for islands. Development of wind power generation systems in islands; 1999 nendo ritoyo furyoku hatsuden system nado gijutsu kaihatsu. Rito ni okeru furyoku hatsuden system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

With an objective of developing wind power generation systems that suit small to medium size islands in Japan, conceptual design was made on a 100-kW class wind mill to satisfy such requirements as no need of large heavy machines, and gust resisting performance. Investigations were performed on sites suitable for demonstration tests thereof. This paper reports the achievements in fiscal 1999. In investigating the site location feasibilities, which took small to medium size islands in Okinawa Prefecture as the discussion objects, environmental investigation, wind condition forecast and investigation, and system linkage investigation were carried out, whereas one point each in three islands were extracted as the promising sites. The system discussion and design called for wind velocity resistance of 80 m/s, system linkage percentage of 40% at maximum, power generation cost of 20 yen per kWh, design life of 20 years, constructability of requiring no large heavy machines, and operation mode of diesel hybrid use. Along with these specifications, conceptual design was performed on the system constituting elements, such as wind mill blades, generators, electric power control devices, and towers. In the blade aerodynamic test, wind tunnel tests were executed by using three types of blade wings. Sample blades were fabricated for the preparation of blade material tests. (NEDO)

Report on achievements in fiscal 1999 of energy and environment technology verification project formation assisting project and international joint verification and research project. Verification of discrete power generation system utilizing mini-power generation that utilizes micro gas turbine; 1999 nendo micro gas turbine riyo mini hatsuden wo riyoshita bunsangata hatsuden system no kensho seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This paper describes the verification test on power generation by using natural gas driven micro gas turbines (rated at 28 kW) in Thailand. The turbine presented excellent result of providing a maximum power generation output of 25 kW, having no efficiency deterioration even at the 50% output point (about 22%). Its exhaust gas emitted under the normal operation is clean. The waste heat is as low as 290 degrees C, which can be used for hot water supply, but may be difficult for steam generation. Under the severe condition for building large power plants in remote areas due to environmental issues and power transmission loss, proliferation of the discrete power generation system in the suburbs of the city of Bangkok draws expectation. This system can be more advantageous than the existing facilities if the end user gas price is 6.7 Bht/m{sup 3} or less. Discussions were given on a hybrid electric vehicle (HEV) bus driven by electric power generated from the gas turbine mounted on the bus. The bus is overwhelmingly superior in the environmental aspect to diesel fueled buses. The HEV bus emits no black smoke at all, and NOx emission is as low as about 1/70. Fuel consumption is less than half (when regenerative braking is used). However, the vehicle body cost is higher by 40%. Smooth operation of the buses requires indispensably deployment of compressed natural gas service stations (to be located at 40-km interval ideally). Assistance is required also on the fund for gas line installations, and civil engineering construction technologies. (NEDO)

Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken

Energy Technology Data Exchange (ETDEWEB)

Kawahara, T; Toyoshima, Y [Keio University, Tokyo (Japan); Narasaki, Y; Kamiya, I [Ebara Corp., Tokyo (Japan); Sato, H [Keio University, Tokyo (Japan). Faculty of Science and Technology

1997-11-25

In order to develop a seawater desalination equipment utilizing solar heat, a performance test was performed on a three-stage solar heat vacuum distiller. The equipment can evaporate and condense water at low temperatures by reducing the pressure in a distilling section. Solar heat is collected by a heat collecting plate, by which water as the working fluid is evaporated and moved to a heat conducting section in an evaporation pipe in a state of steam. The steam is condensed in a low-temperature heat conducting pipe, the heat is released outside the heat conducting pipe, and seawater is evaporated under low pressure condition. The working fluid is circulated for repetitive use. Solar cells are used as a motive power source for a vacuum pump, hence the system is self-sustainable even if installed in a desert area and the like places. The construction is simple, highly durable, and easy in maintenance. The system has high water producing performance, uses no harmful substances whatsoever such as fluorocarbons, and is a friendly system to the global environment. Because of evaporation at low temperatures, heat loss to the surroundings and sensible heat due to temperature rise are small, and the system response is quick. The solar heat can be utilized more effectively as multiple effects. When a heat collecting plate of 7.76 m {sup 2} was used, maximum yield of 105.45 kg/day was obtained. The system`s distillation efficiency is higher than other types of solar heat utilizing distillers. 7 refs., 5 figs.

FY 2000 report on the development of hydrothermal use power plant, etc. Development of the binary cycle power plant (Development of a 10MW class plant); 2000 nendo Nessui riyo hatsuden plant tou kaihatsu. Bainari cycle hatsuden plant no kaihatsu - 10MW kyu plant no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2002-01-01

For the purpose of developing a 10MW class demonstrative plant for geothermal binary power generation, the R and D were carried out, and the results obtained from FY 1995 to FY 1999 were summed up. In the interim evaluation made in July 1994, study was to be phasedly proceeded with for the main three systems (hydrothermal system, medium system and power generation system) which compose the 10MW class binary cycle power plant. The test on the hydrothermal system was started in FY 1995. In the R and D, the following were conducted for evaluation: design/manufacture/installation of the test device for the hydrothermal system, manufacture of demonstrative downhole pump (DHP) No.3 and test at plant, test on the hydrothermal system. As to the turbine working medium suitable for binary power plant, the specified freon/substitute freon have been used, but it seems that hydrocarbons such as butane and pentane can be effective in future. In the study of the economical efficiency, it was pointed out that for the commercialization, it is important to improve durability of DHP and further reduce the cost of DHP equipment and cost of repairs. (NEDO)

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power generation system evaluation technology (Research and development of system evaluation technology - Separate volume: Collection of data of photovoltaic power generation systems); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu (system hyoka gijutsu no kenkyu kaihatsu - Bessatsu: taiyoko hatsuden system data shu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the establishment of technologies for optimum designs and optimum operation for various types of photovoltaic power systems, data are compiled in this volume, collected from the field test facilities and residential photovoltaic power systems. Operating data and meteorological data from the field test facilities (interconnection system, independent system, and water pump system) are arranged as easy-to-use supplementary data to help studies in relation to the 'energy flow in the test field facility systems' which is in the fiscal 1999 achievement report. As for data collected from residential photovoltaic power systems, they are arranged as easy-to-use supplementary data to help studies in relation to the 'Data and evaluation of residential photovoltaic power systems' which again belongs in the fiscal 1999 achievement report. (NEDO)

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research and development for enhancing reliability of photovoltaic power generation - Research on environmental measures for compound solar cell modules); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (taiyoko hatsuden no shinraisei kojo ni kansuru kenkyu kaihatsu - kagobutsu taiyo denchi module no kankyo taisaku no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Research is conducted to properly deal with environmental problems, such as compromised solar cell safety, which may follow the mass introduction and diffusion of photovoltaic power systems. In the research of fiscal 1999 on technical literature on environmental measures against lead and animal tests, a need was found to reduce lead in power systems and to grasp lead elution characteristics for the establishment of environmental measures. In a safety test conducted for thin-film CIS (copper indium diselenide) based solar cells, basic data were collected about the vaporization rate of Se, the effect of moisture on the Se vaporization rate, etc. Basic data were also collected about the relationship between the combustion temperature and the amount of scattered lead in particular from the solder used as the conducting material in silicon based solar cells. In the evaluation of the environmental impact of thin-film CIS solar cells in case of fire, it was found that Se concentration below 10-20m in the plume was near the permissible concentration of 0.1mg/m{sup 3} as recommended by Japan Society for Occupational Health and that the concentration levels predicted for the periphery were two orders of magnitude smaller than the mandatory level. (NEDO)

Development of large scale wind energy conservation system. Development of control techniques for assembly-type wind power generating systems; Ogata furyoku hatsuden system no kaihatsu. Shugogata furyoku hatsuden system no seigyo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Takita, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

Described herein are the results of the FY1994 research program for development of control techniques for assembly-type wind power generating systems. The study on optimum system configuration produces 50 to 100kW wind power units for screening small-size wind power plant types, and, at the same time, surveys performance of commercial units and experiences of 9 makers capable of producing the above units. As a result, 3 MICON`s units (output: 100kW, active YAW control, monopole tower, maximum wind speed: 60m/s) are selected. The study on optimum operational techniques integrates 2 medium-size power units into a power line, showing a service factor of 30.2% on the annual average, monthly varying in a range from 11.8 to 45.0%. These units, installed in Miyako Island, were attacked by 3 typhoons of wind velocity of 25m/s or higher in 1994, and the only damage recorded is that of the anemoscope/anemometer. It is found that No.1 unit is located at a better geographical point than the No.2 unit, to produce a higher output. 3 figs., 3 tabs.

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research on meteorological data for design optimization); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (saiteki sekkei no tame no kisho data no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For collecting solar radiation data necessary for the prediction of power to be outputted by photovoltaic power systems in Japan, detailed experiments and observations were conducted with an emphasis placed on the amount of solar radiation on a slope facing north and on the amount of solar radiation broken down by wavelength. Models were analyzed, and the fiscal 1999 results were compiled. In the validation of a model of solar radiation on an inclined surface, a review was conducted using the 1-year data observed at the Takasaki station for all directions, including solar radiation on the slope facing north, and the validity of the model was confirmed. As for the validation of a model for estimating solar radiation by duration of sunshine, it was examined for accuracy using the same data, and was found to be fairly high in accuracy. For the maintenance of solar radiation data for each wavelength, continuous observation was conducted for each wavelength of solar radiation at the Takasaki station using a multi-filter spectroradiometer, and a technique was established to determine spectral distribution using the observed data. Moreover, continuous observation of global diffused solar radiance was conducted using a sky scanner at the said station and solar cell power generation characteristics was continuously monitored. (NEDO)

Development of hot water utilizing power plant in fiscal 1999. Development of binary cycle power plant (Development of 10-MW class plant); 1999 nendo nessui riyo hatsuden plant to kaihatsu. Binary cycle hatsuden plant no kaihatsu (10MW kyu plant no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

With an objective to utilize effectively middle to high temperature hot water type geothermal resources, R and D has been performed on a downhole pump-applied binary cycle power plant which exchanges heat energy with a secondary media in a heat exchanger, and generates electric power. This paper summarizes the achievements in fiscal 1999. This fiscal year has installed an operation control device and made partial modification therein for the hot water system testing device installed in the previous fiscal year, which was followed by test operation. Having been performed in addition were the installation of cooling water collection pumps, improvement of water storage tanks, modification of piping for injection of downhole pump cooling water, inspection of high-temperature cooling device and low-temperature cooling device, and discussions on deposits onto the downhole pumps. Furthermore, an environmental impact survey has performed measurements of precipitation, river flow rates, thermal spring, spring water, noise, and groundwater fluctuation. A survey was also carried out on transplantation of precious plants. In the single and overall test operation of the hot water system testing device, normal operation was identified. However, the operation had to be suspended because of a trouble in the downhole pump. (NEDO)

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research and development for enhancing reliability of photovoltaic power generation - Research on long-term reliability of inverter); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (taiyoko hatsuden no shinraisei kojo ni kansuru kenkyu kaihatsu - inverter no choki shinraisei no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

In fiscal 1999, the power conditioner which is the primary component of a photovoltaic power system was subjected to an accelerated test, etc., for the evaluation of its durability. For the accelerated test, operating conditions were so set that acceleration be implemented according to Arrhenius' law at ambient temperature 40 degrees C and relative humidity 36%. For the operation of the power conditioner, it was so set that the operation duration be 3.5 hours with a rest time of 4.5 hours for the night or the like. In the accelerated test conducted as in the previous year, 1100 cycles were completed recording the maximum, equivalent to approximately 8-1/2 years according to Arrhenius' law. After the test, no life affecting changes were detected in specimen device A, B, or D. Specimen C, however, failed during the test. As for the evaluation of durability of components, the electrolytic capacitor in the power conditioner was named. Reliability related literature was investigated and a durability evaluation test was started, with consideration given to the voltage to apply and service temperature. (NEDO)

Marketing research on potential demands of photovoltaic systems. Taiyoko hatsuden system no senzai shijo chosa seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

1988-03-01

Applicable uses and the market size for photovoltaic (PV) systems were investigated taking into consideration the features and economics of such systems. As a result of computing representative usage examples together with the extent of potential demand for PV, 238 GW for the power source in private homes, 76 GW for green houses, 126 GW for sewage water treatment plants, 4 GW for schools and universities and others were estimated. For the greater number of PV systems already in actual use, non-cost factors acted as major determining factors when deciding on implementation. Promising uses (applicable ideas) seen from the standpoint of non-cost factors were studied in order to develop the PV system market and gain breakthrough for lowering future costs and increasing proliferation for such systems. When it comes to simultaneously decreasing costs and increasing demand for solar batteries in the coming days, it will be impossible to make an immediate transition from the present state of demand for public use and for special use to the final goal of demand as a power source in the home. There is a need for an intermediate demand that can bridge this gap. (13 figs, 9 tabs)

Performance analysis of dish solar stirling power system; Stirling engine wo mochiita taiyonetsu hatsuden system no seino yosoku

Energy Technology Data Exchange (ETDEWEB)

Tsuchiya, K; Yamaguchi, I [Meiji University, Tokyo (Japan); Naito, Y; Momose, Y [Aisin Seiki Co. Ltd., Aichi (Japan)

1996-10-27

In order to estimate the performance of the dish solar Stirling power system, matching and control of each component system were studied, and the performance of the 25kWe class power system was estimated on the basis of direct solar radiation measured in Miyako island, Okinawa. Application of a Stirling engine to solar heat power generation is highly effective in spite of its small scale. The total system is composed of a converging system, heat receiver, engine/generator system and control system. As the simulation result, the generator output is nearly proportional to direct solar radiation, and the system efficiency approaches to a certain constant value with an increase in direct solar radiation. As accumulated solar radiation is large, the influence of slope error of the converging mirror is comparatively small. The optimum aperture opening ratio of the heat receiver determined on the basis of mean direct solar radiation (accumulated solar radiation/{Delta}t (simulated operation time of the system)), corresponds to the primary approximation of the opening ratio for a maximum total generated output under variable direct solar radiation. 6 refs., 6 figs., 1 tab.

Research and development of system to utilize photovoltaic energy. Survey on the high-durability and low-cost materials for constructing the solar-cell module and its structure; Taiyoko hatsuden riyo system no kenkyu. Taiyo denchi module yo kotaikyusei tei cost zairyo, kozo ni kansuru chosa

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the results obtained during fiscal 1994 on a survey on the high-durability and low-cost materials for constructing the solar-cell module and on its structure. With respect to forms and materials used in the present solar-cell modules, identification was made on the current status of products commercially available and developed inside and outside Japan. Main types of solar cells used for electric power are of crystal-based silicon. Amorphous silicon and CdS-CdTe are used for consumer applications of indoor and outdoor use. As regards transparent resin materials, fluorine resin, PET, acryl, and polyimide are used as surface materials, and EVA, silicon and PVB are often used as fillers. Developments inside and outside Japan are limited to systems of polycarbonate, methacryl, fluorine, polyurethane, acryl and polyester. Butyl rubber and polyurethane are used as sealing materials. Developments are being performed on silicon rubber, polychloroprene rubber and EPT rubber for shaped materials, and silicon systems, urethane systems and polysulfide systems for non-shaped materials. 3 figs., 8 tabs.

Survey for preparing the database for R and D of new engines. Waste power generation, solar heat system, geothermal power generation, clean energy vehicle, coal liquefaction/gasification, and combined systems; Shin energy gijutsu kaihatsu kankei data shu sakusei chosa. Haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy jidosha, sekitan ekika gas ka oyobi odanteki tema

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The present developmental conditions and issues of new energies are systematically arranged for effective promotion of their diffusion. One hundred and forty six general waste power generation facilities of 558,000kW are in operation in 1995, and among them 89 facilities supplies 1,080 GWh to power companies. 50 industrial waste power facilities of 247,000kW are in operation. 20,000 solar systems and 180,000 hot water heaters are in operation in 1995. Commercial geothermal power generation facilities of 490,000kW and private ones of 36,000kW are in operation. Introduction of expensive clean energy vehicles is making very slow progress. The pilot study on bituminous coal liquefaction is in promotion mainly by NEDO. The experiment of entrained bed coal gasification in Nakoso was successfully completed, and development of a commercial plant is to be expected. Power rates of 10 power companies were reduced in 1996, and unit purchase prices of surplus power of photovoltaic and wind power generation were also revised. The new menu and unit purchase price were announced in 1996 for surplus power of waste power generation and fuel cell. 67 figs., 284 tabs.

FY 1998 Report on development of large-scale wind power generation systems. Research on the future prospects of wind power generation systems; 1998 nendo ogata furyoku hatsuden system kaihatsu. Furyoku hatsuden system no shorai tenbo ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Current status of wind power generation in Japan and situations in foreign countries ahead of Japan are surveyed, in order to clarify the prospects for the future diffusion and expansion of wind power generation systems in Japan. The surveyed trends of wind power generation in Japan include those related to mandatory laws and regulations, e.g., the Electricity Enterprises Act, introductory and operation situations in local autonomies and electric power companies, and R and D efforts by academic and research organizations. The surveyed wind power generation situations in foreign countries include trends of international standardization for wind power generation, and global situations of introducing these systems. The on-the-spot oversea surveys include location/wind conditions in Greece's islands, cyclone-caused damages in India, World Renewable Energy Congress in Perth and advanced technologies in Europe for wind power generation systems, and the survey results are reported in detail. The surveyed R and D projects in Japan include the basic technological R and D plans (draft) for, e.g., wind power generation systems for isolated islands. (NEDO)

Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system using general RDF; Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (ippainado RDF riyo) jigyoka FS chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

The refuse-derived fuel (RDF) has been holding public attention not only as the energy resource of stable high calorific value for local energy development, but also as the effective method for waste treatment. As one of the effective utilization methods for waste treatment, this investigation was conducted to industrialize and establish the RDF power generation system, in which power generation and ash treatment are integrated in Tochigi Prefecture which is located inland. The base supply type was adopted as a way of operation from the menu of the electricity wholesale project of Tokyo Electric Power Co. and its rate of operation is 80 percent a year. Then, the fluidized bed combustion method, a dry exhaust gas treatment method, and continuous electric melting furnaces were decided as the RDF power generation system. According to this system, it is possible to obtain 26 percent gross thermal efficiency by conventional generation facilities. It was estimated that the expenses reduction for 15 years will be 17.6 billion yen compared with the ordinary combustion system. Also, the following effects can be expected; the reduction of CO2 emission, improvement of energy efficiency, and the extension of life of landfills capacity. 36 figs., 51 tabs.

FY 1998 Report on development of large-scale wind power generation systems. Part 2. Operational research on large-scale wind power generation systems; 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. 2. Ogata furyoku hatsuden system no unten kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The on-the-spot surveys are conducted and related information is collected for current status of wind power generators connected to power grid systems and simulation techniques therefor in the USA and European countries. In Denmark, the grid system to which wind power generators are connected is a 10kV radiation type system, by which these generators are connected to general consumers. Power quality is investigated by the programs developed by DEFU (Danske Elvarkers Forening Udredning). The German's Norderland Wind Park has the largest capacity in Europe with 35 units of 1.5MW generators. They are connected to a 110kV grind system via ISOREE to control disturbances to the commercial grid system. The USA, used to have the world largest wind power generation capacity, is now plays second fiddle to Germany whose capacity has now exceeded 2,000MW. The country is now seeing the second rush for construction of wind power generators, planning to have a new capacity of 570MW in 1998. Information is also collected from other countries or organizations, including the Netherlands, WREC, Italy and Spain. (NEDO)

FY 1998 Report on development of large-scale wind power generation systems. Part 2. Operational research on large-scale wind power generation systems; 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. 2. Ogata furyoku hatsuden system no unten kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The on-the-spot surveys are conducted and related information is collected for current status of wind power generators connected to power grid systems and simulation techniques therefor in the USA and European countries. In Denmark, the grid system to which wind power generators are connected is a 10kV radiation type system, by which these generators are connected to general consumers. Power quality is investigated by the programs developed by DEFU (Danske Elvarkers Forening Udredning). The German's Norderland Wind Park has the largest capacity in Europe with 35 units of 1.5MW generators. They are connected to a 110kV grind system via ISOREE to control disturbances to the commercial grid system. The USA, used to have the world largest wind power generation capacity, is now plays second fiddle to Germany whose capacity has now exceeded 2,000MW. The country is now seeing the second rush for construction of wind power generators, planning to have a new capacity of 570MW in 1998. Information is also collected from other countries or organizations, including the Netherlands, WREC, Italy and Spain. (NEDO)

Fiscal 1980 Sunshine Project research report. Development of hydrothermal power plant (Development of binary cycle power plant); 1980 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1981-03-01

This report summarizes the fiscal 1980 research result on evaluation of elementary technology studies, research on plant technologies, and assessment of profitability for development of the next 10MW class large binary cycle power plant. In evaluation of heat media and heat cycles, selection of heat media and preparation of specimens through document survey, measurement of thermal characteristics, and preparation of pressure-enthalpy charts were carried out for selection of promising media. In evaluation of materials, as the field corrosion test and simulation results on 3 kinds of welding materials, it was concluded that SUS316 is best as material. In evaluation of heat medium turbine, through the test on oil film seal and mechanical seal techniques, various information were obtained. In evaluation of mist-cooling condenser, experiment on the basic unit heat exchanger, and study on the optimum design were carried out. In addition, research on plant technologies, and assessment of profitability were conducted. (NEDO)

Fiscal 2000 report on result of international joint demonstrative development of photovoltaic power generation system. Demonstrative research on photovoltaic power generation system interconnection system (Myanmar); 2000 nendo taiyoko hatsuden system kokusai kyodo jissho kaihatsu seika hokokusho. Taiyoko hatsuden keito renkei system jissho kenkyu (Myanmar)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Joint research was conducted with Myanmar on a photovoltaic power generation system interconnection system, for which fiscal 2000 results were described in this paper. Power generating facilities were set up consisting of 80kW photovoltaic, 40kW wind and 60kW diesel systems. With the photovoltaic and wind power generation connected to a small-scale power system as a ballast load, the system interconnection is formed through load adjusting equipment such as storage batteries. The hybrid system feeding is from 6 o'clock early in the morning until 23 late at night. The diesel power generation is free from restrictions. The operating method was set on system control (demand side management) by adjustment from the load side, with ballast load control employed that adjustably operates an ice machine load. The basic design was drafted in terms of a storage battery capacity of 1,000Ah and an ice machine load of 32kW. The daytime load was assumed to be 25% of the night load. On the equipment specifications set in this basic design, arrangement design was conducted for the equipment in the premises, making a land development plan and a basic construction plan including a temporary work site, construction steps, transportation and delivery of the equipment. Quantity of solar radiation and wind data were continuously observed. (NEDO)

Fiscal 2000 achievement report. International demonstrative development of photovoltaic power generation system (Demonstrative study on grid-connected photovoltaic power generation system in Thailand); 2000 nendo seika hokokusho. Taiyoko hatsuden system kokusai kyodo jissho kaihatsu - Taiyoko hatsuden keitou renkei system jissho kenkyu (Tai)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-09-01

A demonstrative study was conducted in Thailand for grasping the effect on small electricity grids when several photovoltaic power generation systems, including AC modules, are connected to the grid. In fiscal 2000, surveys and studies were conducted about the data of the local power system, where to install the demonstrative system, and how to install the same, which were necessary for working out a basic design for Libong Island newly designated as the site for the demonstrative system. It was then concluded that the demonstrative system be a grid-connected 100 kW-level photovoltaic system comprising one main photovoltaic power station (85 kW), photovoltaic power systems for school buildings (3-6 kW, three schools), and AC modules (110 W, 10 locations). The manufacture of solar cell modules, grid-connected power conditioners, and measuring devices were completed. Civil engineering work and construction were under way on the site, including the construction of a management building, installation of concrete bases for solar cell arrays, construction of fences surrounding the site, and so forth. (NEDO)

Development of hot water utilizing power plant in fiscal 1998. Development of a binary cycle power generation plant (development of a 10-MW class plant); 1998 nendo nessui riyo hatsuden plant nado kaihatsu. Binary cycle hatsuden plant no kaihatsu (10MW kyu plant no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This paper summarizes the achievements in fiscal 1998 on developing a 10-MW geothermal power plant in the Hohi-Sugawara area being a representative area of middle-to-high temperature hot water resources. In designing the plant, domestic and overseas surveys were carried out on media suitable for binary cycle power plants, thermal cycle characteristics, construction cost, environmental effects, safety, operation, maintenance and control. Latest technologies were also surveyed and analyzed. The plant construction performed development construction around the testing devices, new construction of a plant control room building, constructions for installing electrical machines including the hot water system testing devices, river water intake facility construction, and cooling water intake facility installing construction. The environmental effect investigation included investigations on rain falls, river flow rates, hot springs, spring water, monitoring during the construction, and the state of transplantation of precious plants, and observation on groundwater variation. In verifying the geothermal water pumping system, factory tests were carried out on DHP3 demonstration machine which couples the pump section of a down-hole pump with the motor section, whose performance and functions were verified. (NEDO)

Report on results of feasibility study in fiscal 1986 on use of coal in next generation high efficiency power generation system - research commissioned by Moonlight project propulsion room of Agency of Industrial Science and Technology. MHD generation subcommittee; 1986 nendo jisedai kokoritsu hatsuden system no sekitan gas riyo feasibility chosa kenkyu seika hokokusho (Kogyo Gijutsuin Moonlight keikaku suishinshitsu itaku chosa). MHD hatsuden bunkakai

Energy Technology Data Exchange (ETDEWEB)

NONE

1987-03-01

A research study was done on MHD generation by coal gasificating combustion. MHD generation is a very attractive power generation system such that efficiency is as high as 55%, that preservation of the environment is superior, and that coal can be used as fuel. The open cycle seems suitable for a one million kW class as a base load following up load fluctuation of approximately 20%, while the closed cycle for 200-300 thousand kW class doing daily start-stop. With a mind to a scale of 30 MWt, in the open cycle, R and D is required in such items as a coal gas combustor, generation channel, high temperature air heater, and seed/slag recovery device. In the closed cycle, R and D is required in the generation channel, high temperature helium heater/high temperature valve, seed injection/recovery device, operation technique of helium closed loop, etc.. Moreover, as a total system, development is necessary in the areas of conceptual design and optimization method, partial load operation and DSS operation method, for example. (NEDO)

Fiscal 2000 report on data of international joint demonstrative development of photovoltaic power generation system. Demonstrative research on photovoltaic power generation system interconnection system (Myanmar); 2000 nendo taiyoko hatsuden system kokusai kyodo jissho kaihatsu hokokusho. Taiyoko hatsuden keito renkei system jissho kenkyu (Myanmar) - shiryohen

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This paper describes the fiscal 2000 report on research data of joint demonstrative development with Myanmar concerning photovoltaic power generation system interconnection system. The purpose is an operation research in the case where a small-scale electric power generation system in an remote island or the like in Japan is linked with a severely output-fluctuating power generation system using energy of nature such as photovoltaic and wind power generation. In particular, among the system control (demand side management) methods by adjustment from a loading side, ballast load control was employed that adjustably operates load of an ice machine for example. As the contents of the data, the quantity of solar radiation and wind velocity at the Chaungthar site were shown as meteorological observation data. In addition, a graph was made on the meteorological observation data at the Chaungthar and Letkhokekone sites. The paper also explains the final explanatory data for selecting the sites in implementing the demonstrative research. As to the operation method of the hybrid power generation system, assumption was made for the daytime load in four cases from 50% (30kW) to 0% (0kW) of the nighttime. Storage batteries and diesel generators were installed and used in combination. Simulation results were also presented. (NEDO)

FY 1998 Report on development of large-scale wind power generation systems. Part 1. Operational research on large-scale wind power generation systems; 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. 1. Ogata furyoku hatsuden system no unten kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The research and development project is implemented for large-scale wind power generation systems, and the FY 1998 results are reported. In the FY 1998, a slip property variable generator is actually mounted on the wind power generator, to conduct various types of demonstration tests. The reliability validation tests include microstructure examinations, fatigue tests and fatigue strength tests to predict residual strength in the blade. It is confirmed that the blade has a sufficient residual strength. The performance validation tests include continuous measurement of power outputs and wind velocities, and analysis of the output fluctuations. The power output performance during winter when the west wind prevails is higher than designed. In the tests for evaluating the characteristics of the system on which a slip property variable generator is mounted, the output smoothing effect is confirmed in a range beyond the rated output. The wind power generation system is continuously operated, to accumulate the operational data for, e.g., capacity factor, operating time rate, and system failure status. The FY 1998 results are 920,000kWh as the output and 21% as capacity factor. The other items investigate include aerodynamic noise reduction countermeasures, fatigue life of the wind turbine blades, economics of wind power generation, and dismantling and reuse of the wind turbines. (NEDO)

Fiscal 1995 report on the results of the subsidy operation under the Sunshine Project on the development of a geothermal water use power plant, etc. Development of the binary cycle power plant (development of the measurement while drilling system for geothermal wells); 1995 nendo New Sunshine keikaku hojo jigyo seika hokokusho. Nessui riyo hatsuden plant nado kaihatsu (binary cycle hatsuden plant no kaihatsu (chinetsusei kussakuji kotei joho kenchi system no kaihatsu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

The R and D were conducted of a detection system for measurement of data on the bottom hole of geothermal well, data transmission and signal processing, and an analysis system for well drilling trajectory control and well assessment while drilling of geothermal wells based on the data obtained by the detection system, and the results were reported of the technical development in fiscal 1995. In the development of the downhole detection unit, the following developments were conducted: mud pulse generator, bottomhole signal processor, mode switches, inclination information sensor, power source, measures against vibration/shock, sonde external equipment, tests to confirm heat resistance of electronic parts, and design/manufacture of testing devices. In the development of the surface detection unit, the development was made of experimental analysis program, interface program, and simulation. In the development of the analysis system, as a well trajectory control support system, made were a trajectory planning/display system and a trajectory prediction system. As a downhole assessment support system, made were a temperature analysis system and a pressure analysis system. 4 refs., 298 figs., 88 tabs.

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1981-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1980 reported. This year, a detailed conceptual design was carried out on a coal fired MHD generation system, with points for the technological development concretely examined. In addition, investigation was conducted on the progress of MHD generation technology, development situation of other generation systems, state of energy resources, etc., in various foreign countries. In the conceptual design of the coal fired MHD generation plant, the system structure of a 2,000 MWt class commercial MHD generation plant was explained, as were the conceptual design of the structural elements and proposals for a 500 MWt class demonstration plant and an 100 MWt class experimental plant, for example. In the overseas trend of R and D on MHD generation, investigations were made concerning the U.S., Soviet Union, and China, with details compiled for such items as generation plants, combustors, generation channels, heat resisting materials, superconducting magnets, heat exchangers, seed slags, inverters, boilers and environments, and commercial plants. (NEDO)

Feasibility survey of the environmentally-friendly coal utilization system. Feasibility survey of the environmentally-friendly coal utilization system in Indonesia; Kankyo chowagata sekitan riyo system kanosei chosa. Indonesia ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

With relation to the coal of Indonesia, where the expansion of the use of coal as a substitute for petroleum/plant fuel is aimed at, the paper grasped the situation of coal production/distribution/utilization and environmental problems, and analyzed the situation of the coal utilization/spread by industry including the commercial/residential use. The purpose of the survey is to work out a comprehensive master plan including Japan`s international cooperation for introducing the environmentally-friendly coal utilization system to Indonesia. Coal utilization systems, the introduction of which Indonesia should study in future, were picked up, according to the surveys in fiscal 1993 and 1994. In commercial/residential and small-scale industry sectors, needed is improvement of carbonization technology for production of coal carbonization briquette. Moreover, the introduction of bio-briquette should be studied in the future. In the power generation sector, studies should be made on the introduction of technology for SOx/NOx reduction and technology for coal ash treatment including the effective use of coal ash. For the introduction of coal boilers, the combustion mixed with bagasse, which is abundant in amount, is also necessary. In the coal production sector, coal preparation technology is studied, and a method to select the optimum process was proposed through the simulation. 76 figs., 43 tabs.

Fiscal 1996 report on the results of the subsidy operation under the Sunshine Project on the development of a geothermal water use power plant, etc. Development of the binary cycle power plant (development of the measurement while drilling system for geothermal wells); 1996 nendo New Sunshine keikaku hojo jigyo seika hokokusho. Nessui riyo hatsuden plant nado kaihatsu (binary cycle hatsuden plant no kaihatsu (chinetsusei kussakuji kotei joho kenchi system no kaihatsu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The R and D were carried out of a detecting system for measurement of data on the bottom of geothermal well, data transmission and signal processing, and an analysis system for well drilling trajectory control and well assessment while geothermal well drilling based on the data obtained by the detecting system. The paper reported the results of the technology development in fiscal 1996. In the development of the detecting system, improvement/design were conducted on a mud pulse generator constituting sonde, well bottom signal processing equipment, mode switch and inclined information sensor, and the system equivalent to the actual one was manufactured to conduct a running test at high temperature/pressure. Moreover, a test to confirm heat resistance of electronic parts was made for further improvement in heat resistance of the sonde, in order to obtain the data. In the development of an analysis system, conducted were enhancement of operability of the planning/indication portions of the well drilling trajectory supporting system, improvement of the data intake system, etc. In relation to the well assessment supporting system, carried out were heightening of operability of the temperature analysis portion and confirmation of accuracy increase. 5 refs., 253 figs., 72 tabs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Development of solar beam power generation and utilization systems and ancillary technologies (Research and development of building material integrated solar cell modules - high-durability roof modules); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu (kotaikyusei yane module))

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

With the target set on a system with a roof array efficiency of 8.5%, and a system cost of 170 yen/W, development is being made on a large roof panel and its construction technology, which is capable of AC output by integrating into a large roof panel the compound thin film solar cells having glass/CdS/CdTe/rear air chamber/rear metal, and the inverter. In the cell constituting materials and the structure design, sealants were evaluated, the painting process was developed, and two kinds of structures were prepared. The frameless type has a lamination structure, and a prototype module of 886 times 664 mm was fabricated, and the frame type has a double sealing structure, and a prototype module 600 times 900 mm was fabricated. Prototype modules that can be fixed on a rail type fixing stand were fabricated and constructed, having demonstrated sufficient workability. In addition, a prototype small inverter with system coordination protection was operated actually, and the initial stage malfunctions were corrected. Two demonstration buildings were built, and the whole process was performed from assembly and transportation of the modules and to the installation thereof at the construction site. (NEDO)

Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system using animal waste; Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (chikusan haikibutsu riyo) jigyoka FS chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

To introduce the power generation system fueled by animal waste (excrements), one of the so-called industrial waste, its feasibility has been studied in Koyu and surrounding area located in Miyazaki Prefecture. This report includes the technical feasibility of available quantity of animal waste, chemical analysis of the waste, and basic design of the power generation system containing the furnace model and also its economical feasibility. The available quantity of animal waste in Koyu area is about 169,000 tons a year, which can generate 10.5 MW of electric power. That including the surrounding area is about 219,000 tons a year, which can generate 15.0 MW. The heating values of animal excrements in average and as received are 970 kcal/kg for pigs and 1,230 to 2,700 kcal/kg for broilers. In the case of combustion of mixed broiler and pig excrements, both of the stoker and fluidized-bed model furnaces become refractory furnace construction and provide with heat recovery boiler due to their high moisture content. In addition, the stoker furnace model requires an excrement dryer system as pre-treatment of fuel. For the fluidized-bed furnace of 15 MW grade power plant using the mixed fuel of 50% broiler excrements and 50% pig excrements, the power generation efficiency of 23% can be expected at generator end. The generating cost is around 10 yen/kWh. 27 refs., 61 tabs.

FY 1994 report on the results of the development of a large wind power system. Development of control technology of the array type wind power system; 1994 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. Shugogata furyoku hatsuden system no seigyo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1995-09-01

This technology development aims at developing the design technology of the array type wind power system and the control technology to efficiently operate the system. As a result, the wind turbine produced by Micon was selected. The rated power is 100kW, and the number of the wind turbine is three. The three-phase short-circuit capacity at the generating end of the wind power generation facilities is 26,25 MVA, which can fully be broken. A simulation of voltage variation/frequency variation was made to grasp various phenomena of the output of the wind power system influencing the power source system and power distribution system. As a result, it was confirmed that it is possible to operate the system safely without lowering the quality of power. As to the overall monitor/control system which controls wind turbines, five wind turbines as many as possible are grid-interconnected and the number of wind turbine is to be controlled by a ratio of the total demand power to the gross generating output of wind power in the Miyako system, for the purpose of increasing the rate of equipment utilization of the wind power system also at the time of the lowest load of the Miyako system. In the operation of two-system interconnection, the gross power generating amount was 1,321,250 kWh, which increased 9.7% over the results in FY 1993. (NEDO)

Trend of development of dispersion energy machine. Solar power generation system; Taiyoko hatsuden shisutemu

Energy Technology Data Exchange (ETDEWEB)

Oda, T. [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

2000-04-01

Technology development of a solar power generation system is advanced in Japan taking the New Sunshine Subject (NSS) of the Agency of Industrial Science and Technology as the center. According to the initial stage plan (in fiscal 1993 to 2000) of the NSS, a general goal is to establish the technique which supplies electric power at the power generating cost (the production base cost) being equal to the electricity fees (20 to 30 yen/kWh) for normal families in the latest year. At present, introduction of the solar power generation system results in the reduction of about 1 million yen per kW. It is expected that 5 hundred thousand yen per kW is reduced by the present technology with a combination of cost reduction of solar battery modules, cost reduction of relevant equipment such as inverters, and rationalization of installation fees. It is necessary to realize 3 hundred thousand yen per kW for realizing the price having competition in the power supply market. In this paper, popularization prediction and popularization promotion countermeasures of the solar power generation system are concretely explained. (NEDO)

Fiscal 1997 development of the geothermal water use power plant, etc. Development of the binary cycle power plant (10MW class plant); 1997 nendo nessui riyo hatsuden plant nado kaihatsu. Binary cycle hatsuden plant no kaihatsu (10MW kyu plant no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

A R and D was conducted with the aim of using medium-/high-temperature hot water type geothermal resources. In fiscal 1997, fabrication of geothermal water system testing equipment and geothermal water production/reduction piping installation work were conducted, and an environmental effect survey and ground water variation observation were carried out. Moreover, pumps to pump up geothermal water were fabricated. In the fabrication of a pump for No. 3 demonstration plant, the following improvements were made. Concerning the inlet undersea bearing, the shapes related to it were so reformed that external water feeding in the initial run can be done. Relating to the protection of the thrust bearing half load side friction face, a spring was added to the face so that it was structured to give preload. As a method to install a casing covering board, adopted was a band installation method which is easy in handling. The number of instrumentation cables was reduced. As to cables for downhole pumps, studied were methods of connection, etc. of connection portions of the motor connector and instrumentation cable. Moreover, purifying/regeneration facilities of the downhole pump bearing oil were fabricated and tested. 85 figs., 57 tabs.

Energy conservation house by photovoltaic system. 2; Taiyoko hatsuden wo donyushita sho energy jutaku. 2

Energy Technology Data Exchange (ETDEWEB)

Itsumi, J. [Kumamoto Institute of Technology, Kumamoto (Japan)

1996-10-27

Photovoltaic power generation system was once placed in excessive expectation what with a growing tendency toward environmental issues and what with vulnerability in supply and demand of energy. However, its utilization was negative because of the low energy conversion efficiency and the high cost. Then, gradually the wind shifted round to the improvement in solar cell efficiency, reduced cost, implementation of subsidizing policy by MITI, purchase of excess power by electric power companies and the amendment of the Electricity Enterprises Act, encouraging the use of the system again. In addition, with a lesson from the Great Hanshin Earthquake, the merit of the system was appreciated as a life-support power source, motivating house-builders. Earlier, the authors had reported designs of energy-saving homes, system structures of photovoltaic power generation, etc. This paper presents the power generation record of a year old system and an example of the comfortable sealed residential room environment, etc., created with the use of the power thus obtained. The annual power generation was 4,088kWh, 30% of which was used in the house and 70% of which was sold as an excess power, resulting in the purchase of power for 6,642kWh. 5 refs., 4 figs, 2 tabs.

Achievement report for fiscal 1981 Sunshine Program on development of practical application technologies for photovoltaic power systems. Development of photovoltaic demonstration systems (Research and development of systems for factories); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden demonstration system kaihatsu (kojoyo system no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

In the effort at constituting an optimum system, a 2kwp mini-system is completed after designing and introducing an array output measuring unit, DC control unit, dummy loads, etc. The system is actually operated for collecting various data, and commercial noise, transmission line safety, surplus power utilization, solar cell utilization rate, efficiency of various kinds, etc., are subjected to analysis. The basic designs of measuring instruments for a 100kwp full-scale system are also examined. In relation with the manufacture, testing, and arrangement of solar cell arrays, a large solar simulator is designed and introduced for the measurement of module photoelectric characteristics. Using this simulator, continuous irradiation is performed by a 1kW/m{sup 2} light beam of a spectral distribution of AM (air mass) 1.5. A CZ (Czochralski) single crystal, EFG (edge defined film bed growth method) ribbon, and a small CdS/CdTe solar cell module are installed, through the use of which operating characteristics are determined for comparative study. A DC control unit is designed and built, composed of a rectifying device for the dissolution of noise that greatly affects measurement for the mini-system, DC-AC-DC converter, and a remote control console. (NEDO)

Research on PV system application on residences. Part 1. Report on the systems and PV measurement results of an experimental passive solar house; Taiyoko hatsuden system no jutaku eno oyo ni kansuru kenkyu. 1. Taisho tatemono taiyo to taiyoko hatsuden system keisoku kekka

Energy Technology Data Exchange (ETDEWEB)

Ishihara, O.; Sakai, K.; Hirakawa, M. [Kumamoto University, Kumamoto (Japan). Faculty of Engineering

1997-11-25

System of the house is outlined, and warming performance and photovoltaic power generation system energy performance are taken up. It is a one-storied meeting hall situated in an apartment area, whose heat loss factor is 2.59kcal/m2hdegC. Ninety hybrid solar cells provided with circulating air heat collectors are installed on the east-side of the roof, interconnected to the commercial power system. In the daytime in summer, the house is fully insulated from solar radiation, with the room temperature kept a little lower than the open air temperature. The range of daily change in the room temperature is narrow, providing a comfortable residential space. When the windows are opened in the evening, cool air comes into the room to replace the warm air inside, reducing the difference in temperature between the inside and outside of the room. In winter, insolation time is short on the east side of the roof which finds itself out of the sun. Under the circumstances, the system outputs but a little and the quantity sold is quite small in winter. But, in summer, sale of power can be practicable, thanks to exposure to sufficient sunshine. The inverter rated at 3.5kW attains a 90% or higher operating rate in the presence of an input of power of 0.5kW or more. 4 refs., 10 figs.

`Power storage system` dealing with leveling of electric power use; Denryoku riyo no heijunka ni kotaeru `denryoku chozo system`

Energy Technology Data Exchange (ETDEWEB)

Igarashi, M. [Meidensha Corp., Tokyo (Japan)

1996-06-28

An overview is given on the development situation of a Zn-Br battery as a power storage system. The system is aimed at storing excess power at night and supplying the on-load demand during daytime. The power storage technology requires a large output and capacity of MWh level, long term stability and durability, and cost as low as pumped storage power generation. Four kinds of batteries have been examined to cope with the conditions, in which development of Zn-Br batteries along with Na-S batteries is in progress towards practicability. As a power conversion method for this system, GTO has been employed for a large capacity unit and IGBT for a medium/small capacity unit. The reliability of the Zn-Br batteries against leakage was improved by laminating each cell by hot plate welding. The service life was improved by using a material with a high bromine resistance in place of the conventional electrode constituent material. Although the battery efficiency was influenced by each resistance of electrode, film and electrolytic solution, distance between electrodes, temperature, etc., these correlations were clarified so as to establish the simulation technology. At present, the system realizes 50kW and 40kWh/m{sup 3}. 1 ref., 8 figs.

Evaluation of the performance in the solar assisted heat pump system; Taiyonetsu riyo heat pump system no seino hyoka ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Saito, Y [Osaka Institute of Technology, Osaka (Japan)

1996-10-27

Performance of a solar heating system with a hydrothermal source heat pump was evaluated and compared with that of a direct solar heating system. The sun-dependency rates ({Sigma}D and {Sigma}H)of the direct system and heat pump (HP)-provided system were expressed as a function of the rate ({alpha}) of the auxiliary heat against the collected heat and as a function of the performance coefficient and {alpha}, respectively. When the sun-dependency rates are compared, it is found that the HP-provided system is the more advantageous when {Sigma}H/{Sigma}D>1. The relationship between the {alpha}`s of the two systems was clarified and computation was performed to compare the sun-dependency rates on condition that the two are equal in the heat collecting area. Although the sun-dependence rate cannot be elevated to 100% in the HP-provided system, it achieves a sun-dependency rate higher than that of the direct system even when the heat collecting area is small. In cases where the building is economically limited, for instance, with respect to the area for solar collector installation, it is advantageous to employ the HP-provided system. 5 figs., 1 tab.

Fiscal 1998 R and D report on femtosecond technology (power generation facility monitoring system using high- intensity X-ray pulse); 1998 nendo femuto byo technology no kenkyu kaihatsu (kokido X senb pulse riyo hatsuden shisetsu monitoring system no kenkyu kaihatsu) seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This report reports the fiscal 1998 R and D result of Femtosecond Technology Research Association (FESTA) supported by NEDO. For creation of industrial basic technologies supporting the advanced information society in the 21st century, ultra-high speed electronics technology including new functions beyond the speed limit of conventional electronics technologies is indispensable. From such viewpoint, this R and D aims at establishment of the basic technology controlling conditions of beams and electrons in a femtosecond (10{sup -15}-10{sup -12} seconds) region. In development of the titled system, this R and D aims at generation of high-intensity X-ray pulse by interaction between femtosecond light pulse and high-density electron beam pulse, and development of measurement technology (non- stop inspection) of high-speed moving objects using such X- ray pulse. In fiscal 1998, this project succeeded in time stabilization of laser oscillators at a 100fs level and generation of low-emittance electron beam pulse through development of ultra-short pulse synchronization, laser stabilization and electron beam pulse generation technologies. (NEDO)

FY 2000 report on the results of the development of technology for commercialization of the photovoltaic power system - R and D of evaluation technology of the photovoltaic power system. Separate volume. R and D of the system evaluation technology (Data book on the photovoltaic power system); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu - Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu - System hyoka gijutsu no kenkyu kaihatsu (Bessatsu : Taiyoko hatsuden system data shu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the purpose of establishing the optimum design and optimum operation technology of various kinds of photovoltaic power system, data were collected to make a data book on various kinds of photovoltaic power system of which the future commercialization is expected. Included in this data book were the monthly report on operation data on demonstrative test facilities at the Hamamatsu site of JQA (Japan Quality Assurance Organization), daily graph of insolation/temperature, monthly graph of wind direction/wind velocity. Further, as the data on the residential use photovoltaic power system, data on the following were summed up: information on the site of installation of the residential use photovoltaic power system (photo information, the state of installation such as sites installed more in FY 2000, drawings of module arrangement and measuring point layout, etc.), daily report on operation (graph of daily trends, daily report by site, hourly report by site, daily report on all sites, hourly report on all sites), operation data and performance indices, list of troubles arising in the residential use photovoltaic power system, other system information about residential use measuring data, power generation characteristics and {alpha}{sub pmax} of residential use solar cell modules, etc. (NEDO)

Fiscal 1974 Sunshine Project result report. Research on solar energy utilization systems (total system); 1974 nendo taiyo energy riyo system chosa kenkyu seika hokokusho. Total system

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-03-01

The current most important solar energy utilization fields are solar energy power generation (solar heat and photovoltaic power generation), and solar heat cooling and heating. A solar heat power system collects or stores solar thermal energy as energy source of power systems, and converts it to electric power through heat exchange systems. To establish such system, not only R and D on a collector, absorption capsule, storage unit and heat transfer unit, but also complete study on an optimum system configuration and environmental impact are necessary. A photovoltaic power system converts solar energy to electric power directly by photoelectric conversion device such solar cell. Except specific local uses, drastic cost reduction and improvement of a conversion efficiency (at present 12-15%) and life (several years) are necessary for solar cells. Although a lot of solar heat cooling and heating systems is in practical use in Japan, for its further diffusion an important research task is development of heat collector excellent in efficiency, cost, life and maintainability. (NEDO)

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research and development of novel type solar cell module integratable with building materials - Highly durable roof module); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu - kotaikyusei yane module)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

A thin-film solar array, a large roof panel, and an interconnecting power conditioner are integrated into one and single structural member for the development of a residential photovoltaic power system in which a unit AC (alternating current) output is collected from each panel. In fiscal 1999, in the study of highly durable materials for solar cell modules and of their structure, a thin film compound solar cell module was enlarged to 82cm times 71cm, evaluated for performance, and installed on the third test house. In the study of collecting AC power from the solar cell module, a compact power conditioner for a roof panel which had been in test operation on the roof of the laboratory since 1998 was checked for practical performance, improved, and evaluated for system generation efficiency. In the study of a highly durable roof module structure, problems pertaining to heat radiation from the rear side steel sheet, the burning of the junction box, etc., were solved, and the module passed a verification test under the Building Standard Law. In the validation of the roof module for which power generation performance and meteorological conditions had already been continuously measured for 19 months, it was found that the roof module suffered no troubles such as water leak or deformation. (NEDO)

Fiscal 1997 report on the results of the New Sunshine Project subsidiary operation. Development of the geothermal water use power plant, etc. (development of the binary cycle power plant / development of the geothermal well MWD system); 1997 nendo New Sunshine keikaku hojo jigyo seika hokokusho. Nessui riyo hatsuden plant nado kaihatsu (binary cycle hatsuden plant no kaihatsu (chinetsusei kussakuji kotei joho kenchi system no kaihatsu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

For the purpose of improving efficiency and accuracy in geothermal well drilling, the development was conducted of an MWD (measuring while drilling) which detects borehole information in real time. In fiscal 1997, the following R and D were carried out. As to the downhole equipment, the actual well experiment on the sonde was conducted to confirm the basic performance. The design improvement, trial fabrication and experiment were conducted on mud pulse generating valve driving control equipment, bore hole signal processing unit and temperature correction circuit portion in the sonde. Concerning electronic parts, a heat resistance confirming test was conducted for data collection/assessment. Further, jigs were fabricated for tests to confirm working of each equipment. Relating to the ground equipment, conducted were improvement of the decoded program and betterment of the analytical system and interface. As to the development of the analytical system, data on depth were added to the azimuth/inclination obtained from MWD, which enabled indication of a well drilling tracing chart while drilling. 92 figs., 43 tabs.

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1981 reported. This year, technological reexamination was conducted for a 2,000 MWt commercial MHD generation plant, with evaluation carried out on the cost performance including the construction and operation cost. In addition, for the purpose of intermediate R and D towards the practicability, examination was also conducted on a system structure, concrete specifications of component element, cost of R and D including operation expenses for example, concerning an 100 MWt class experimental plant and a 500 MWt class plant. In the investigation of the overseas trend, information was summarized in detail on the experimental devices, combustors, generation channels, electrode materials, electrode phenomena, theoretical analyses, seeds, slag, component equipment, instrumental technologies, conceptual designs of generation plant, commercial plant, etc., in Soviet Union, China, Holland, India and EPRI, on the basis of the materials from the 19th MHD symposium held in UTSI and from the coal MHD specialist conference held in Sydney. (NEDO)

Fiscal 1997 report on the results of the New Sunshine Project subsidiary operation. Development of a geothermal water use power plant, etc. / technical development of the hot dry rock power generation system (development of electric technology); 1997 nendo New Sunshine keikaku hojo jigyo seika hokokusho. Nessui riyo hatsuden plant nado kaihatsu (koon gantai hatsuden system no gijutsu kaihatsu (yoso gijutsu no kaihatsu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

For the purpose of using hot dry rock energy to power generation, the R and D was continued of element technology of the hot dry rock power generation. In fiscal 1997, the construction of ground facilities, etc. for long-term circulation experiment was proceeded with to make data analysis for study of the experimental results. As for preparation for the long-term circulation experiment, design/fabrication/construction of experimental facilities were commenced, and review/fabrication of the monitoring system were conducted to strengthen the monitoring network of microearthquakes. In relation to the analytical research, using models connecting reservoirs and wells, relationships were studied among the distance between injection well and production well, production flow rate, and long-term thermal extraction characteristics of reservoirs. Further, to study structures of shallow/deep reservoirs at the Hijiori hot dry rock experimental field, re-determined were mechanism solutions of AE in deep hydraulic fracturing experiments, three well circulation tests, and preliminary circulation tests, and at the same time stress fields were studied. Fracture models were made and the simulation program was revised. 18 refs., 82 figs.

FY 1998 Report on development of large-scale wind power generation systems. Feasibility study on development of new technologies for wind power generation (Study on the development of wind power generation); 1998 nendo ogata furyoku hatsuden system kaihatsu. Furyoku hatsuden shingijutsu kaihatsu kanosei chosa (furyoku hatsuden gijutsu ni kansuru kaihatsu doko chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This survey is designed to analyze, e.g., current status of large-scale wind power generation devices/system technologies and development trends worldwide, and to make predictions about future developments, in an effort to contribute to advancements in new technology for wind power generation systems in Japan. The international R and D cooperation programs promoted by IEA and EU have helped the participants produce a number of good results at lower costs. The European countries have developed the wind power generation industries in each area, promoted by the governmental subsidy policies, and are leading the world. The system is becoming larger, from around an average unit capacity of 250kW in the beginning of the 90's to 600kW now, reducing the cost by the scale merit. The improved computer capacity has made it possible to more easily analyze the complicated rotor aerodynamics, structural dynamics, wind characteristics and other factors related to wind power generation systems. The future R and D directions will include world standards for large-scale wind turbines, advancements in wind farm technologies, offshore wind power generation systems, advancement in design technologies, and new concepts for wind power turbine designs, e.g., floating wind turbine. (NEDO)

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1981-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1980 reported. This year, a detailed conceptual design was carried out on a coal fired MHD generation system, with points for the technological development concretely examined. In addition, investigation was conducted on the progress of MHD generation technology, development situation of other generation systems, state of energy resources, etc., in various foreign countries. In the conceptual design of the coal fired MHD generation plant, the system structure of a 2,000 MWt class commercial MHD generation plant was explained, as were the conceptual design of the structural elements and proposals for a 500 MWt class demonstration plant and an 100 MWt class experimental plant, for example. In the overseas trend of R and D on MHD generation, investigations were made concerning the U.S., Soviet Union, and China, with details compiled for such items as generation plants, combustors, generation channels, heat resisting materials, superconducting magnets, heat exchangers, seed slags, inverters, boilers and environments, and commercial plants. (NEDO)

Accident and everyday use for small PV power supply system. 2; Saigaiji ken`yo kogata taiyoko hatsuden system. 2

Energy Technology Data Exchange (ETDEWEB)

Yokoyama, S.; Sano, N.; Itsumi, J. [Kumamoto Institute of Technology, Kumamoto (Japan)

1997-11-25

Study is under way for the development of a small power source system capable of supplying power to public facilities and home appliances at normal times and capable of turning immediately into a self-sustained power source in case of emergency. This study discusses a power source that is a combination of solar cell modules and a storage battery, which is subjected to analysis for its match with a light or a data-processing computer imposed as a load on the power source. In the experiment, the power source consists of solar cell modules and a rectangular wave inverter. The battery is a 12V/28Ah automotive battery, the solar cells are two 75W (17V/4.4A) modules, and the load is a fluorescent lamp, fan, electric bulb, or a computer. It is found that the system can operate near the maximum power point of the solar cell modules when the load is light and that the system still works on even when the load consumes more than what the solar cells module produce, this thanks to the battery serving as a backup. In the future, a test-dedicated small power source now under construction will be put to continuous operation for further study. 4 refs., 4 figs., 1 tab.

Demonstrative study for the wind and solar hybrid power system. 2; Furyoku taiyoko hybrid hatsuden system ni kansuru jissho kenkyu

Energy Technology Data Exchange (ETDEWEB)

Kimura, Y; Sakuma, H; Ushiyama, I [Ashikaga Institute of Technology, Tochigi (Japan)

1996-10-27

In order to verify the complementary relationship between wind and solar energy, the long-term field test of the hybrid power system was conducted at the natural energy square of Ashikaga Institute of Technology. The solar cell blade windmill composed of a Savonius windmill and flexible solar cells applied to swept buckets was also prepared. As a result, the wind power generation was promising mainly in the winter period including the late fall and early spring, while solar one was stable all the year through although it was slightly poor in winter. Stable power generation was thus achieved by combining wind energy with solar energy. As the whole data of other wind and solar power generation systems at the square were analyzed for every month, the same conclusion as the solar cell blade windmill was obtained as follows: the wind power generation in Ashikaga area is promising in Nov.-March from the field test result for 16 months, solar power generation is stable all the year through, the hybrid power system is effective in Nov.-April, and the solar cell blade windmill is equivalent to the hybrid power system. 3 refs., 5 figs.

FY 1997 - FY 2000 reports on the results of the development of commercialization technology of the photovoltaic power system. Summary. R and D of the photovoltaic power generation utilization system/periphery technology (R and D of high reliability storage batteries); 1997-2000 nendo New sunshine keikaku seika hokokusho (Sokatsu ban). - Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (Koshinraisei chikuden sochi no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

The R and D/evaluation were made from FY 1997 to FY 2000 of lead storage batteries that are applicable to the use for the absorption of abrupt power variations in photovoltaic power generation and peak shift/emergency use power source, and the results were summed up. In the study for prolonging the life, the following were carried out: development of the inexpensive corrosion-resistant lead alloy positive grid applicable to the photovoltaic power generation, development of the negative active material with a high sulfation control effect, selection of silica powder as electrolyte retainer, development of the charging control technology by the multi-stage constant current method, etc. As a result, energy density of the battery was more than 70W/L as a target, and the target life of 3,000 cycles was achieved in the life test. Further, cost reduction and deterioration judgment were studied. In the study of the group of batteries, a management system for group of batteries was developed. As a result of the 1-year field test, there were no problems on durability of the storage case, temperature difference among batteries, rise in temperature, etc. As to the developed seal type lead storage battery, the applicability to the photovoltaic power generation was acquired. (NEDO)

Fiscal 2000 project on measures for assisting and diffusing environmentally-friendly coal utilization system introduction. CMG recovery/utilization system joint demonstration project; 2000 nendo kankyo chowagata sekitan riyo system donyu shien nado fukyu taisaku jigyo chosa hokoku. CMG kaishu riyo system kyodo jissho jigyo

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

A CMG (coal mine gas) recovery/utilization system was designed, constructed, and then demonstrated at a model coal mining district in Liaoning Province for the purpose of contributing to the solution of energy and environment related problems in China. The recovery system demonstration test, aiming to improve on safety and productivity of coal mining and to supply recovered gas with stability, involved gas drainage test boring, mine sealing, sealed gas induction control, centralized gas monitoring, etc., which were carried out at the coal mine working face. A utilization system demonstration test was conducted, and CMG would continue to be supplied to the current users and CMG utilization would be started at the other 6 coal mines. For the supply of CMG to large-scale gas consuming areas, steel materials were manufactured and processed for spherical gas holders and denitrification facilities, gas holders were constructed, pipe lines were installed, and a provisional gas supply was carried out. For the transfer and diffusion of the technology, Chinese engineers were trained in Japan and Japanese engineers were dispatched to China. (NEDO)

Application of photovoltaic generating system to electric power in large ship; Taiyoko hatsuden system no ogata senpaku eno oyo ni kansuru kento

Energy Technology Data Exchange (ETDEWEB)

Katagi, T; Ogawa, S; Nishikawa, E; Hashimoto, T [Kobe University of Mercantile Marine, Kobe (Japan); Ishida, K

1996-10-27

This paper describes the design of electric power system in a ship with photovoltaic power generating system, to examine applicability of the photovoltaic power generating system to the inboard power source. It also discusses effectiveness of the system for sea environment. At first, the actual route of a car carrier, meteorological data, and quantity of power consumption were picked up from the deck logbook and engine logbook. Then, the installation area of photovoltaic arrays, the quantity of photovoltaic power generation derived from the quantity of solar radiation, and the capacities of batteries and inverters were calculated, to design the electric power system in the ship with photovoltaic power generation system. Moreover, the NOx and SOx emissions were compared between the present power system and the usual power system using diesel power generator, to discuss the effectiveness of the present system for sea environment. Consequently, it was found that the emission of NOx was reduced by about 33% and the emission of SOx was reduced by about 28% compared to the usual power system. The effectiveness for sea environment was confirmed. 9 refs., 5 figs., 4 tabs.

Report on achievements in proliferation project to assist introduction of environment harmonizing type coal utilization system in fiscal 1998. Joint demonstration project for CMG recovery and utilization system in fiscal 1998 (utilization facilities); Kankyo chowagata sekitan riyo system donyu shien nado fukyu taisaku jigyo seika hokokusho. 1998 nendo CMG kaishu riyo system kyodo jissho jigyo (riyo setsubi)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-09-01

This paper describes the achievements of the discussions in fiscal 1998 on the utilization facilities related to the coal bed methane gas supply plan for the city of Tieling in China. The gas quality standard calls for 3,500 kcal/m{sup 3} or more (methane concentration of 41% or higher). The supply is planned to start in December 1999, and continue the supply of 141,000 Nm{sup 3}/day in 2000, and 212,000 Nm{sup 3}/day in 2001 and thereafter. A gas supply center to collect gases recovered from each mine will be installed in the vicinity of the existing gas holder located about 2 km east of the Tiefa Mining Bureau. The Japanese side bears the cost of installing a gas compression and transportation facility for gas supply to the city of Tieling, a monitoring system, and devices for comprehensive surveillance system. This paper shows the overall plan drawings, the drain separator room building plan, the plans for arranging devices in the machine room, and the piping scheme. In addition, the piping plan around the gas holder, and the basic device plan are shown. Also appearing in the paper are the machine summary drawings, summarized flow charts, gas holder plan, de-humidifier plan, and electricity and instrumentation plans. The main body and supporting structure for the gas holder, and the foundation strength calculation sheets are also shown. Descriptions are given also on the facilities to deal with variation in demand quantity and supply quantity. (NEDO)

FY 1998 Report on development of large-scale wind power generation systems. Feasibility study on development of new technologies for wind power generation (Study on the development of wind power generation systems for small-scale power grids); 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. Furyoku hatsuden shingijutsu kaihatsu kanosei chosa (shokibo keito ni okeru furyoku hatsuden system ni kansuru chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This survey includes the characteristics of small-scale power grids, feasibility studies on introduction of wind turbines in these grids, and statuses of application of wind turbines to isolated islands or the like in the advanced countries, in order to promote introduction of wind power generation systems in isolated islands or the like. It is concluded that small-capacity wind power generation systems can be possibly introduced in the intermediate- to large-scale grids in isolated islands, 1,500kW or larger in capacity, in the Tokyo, Kyushu and Okinawa Electric Power Companies' areas. A scheduled steamer ship for isolated islands can carry up to 10 ton track, and introduction of a small-scale wind turbine is more advantageous viewed from the transportation cost. Some foreign countries have the sites which have achieved a high percentage of grid connection of wind power units by stabilizing wind conditions and connecting them to the main high-voltage grids in different manners from those adopted in Japan. For developing wind turbine bodies, most of the foreign countries surveyed are concentrating their efforts on development and manufacture of large-size units, paying little attention on development of small-size wind turbines for isolated islands. For the future prospects, the promising concepts include adoption of wind turbines small in capacity and easy to transport and assemble, and hybrid systems combined with power storage units. (NEDO)

Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Research and development of photovoltaic system evaluation technology (Research and development of system evaluation technology); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu (system hyoka gijutsu no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In relation with several types of standard photovoltaic power generation systems expected to be put to practical use, design parameters are quantified, databases are utilized, and simulation technologies are developed, while collecting data from test facilities constructed to simulate them, for the development of evaluation techniques indispensable for the efficient improvement of photovoltaic power generation systems. In fiscal 1998, data were collected from verification test facilities and residential photovoltaic systems sited across Japan. The collected data were subjected to analysis and simulation, by which correction factors were calculated for smudge, spectral response, incident radiation, and temperature. Furthermore, load matching factors and storage battery contribution rates were calculated by simulation for the stand-alone photovoltaic systems sited in five Japanese cities, each comprising an array, storage battery, charge/discharge controller, DC-DC converter, and a load. Reference is also made to a survey of trends of technology development. (NEDO)

Wind energy technology : from the past to the future; 20 seiki ni okeru furyoku riyo gijutsu no henkan. Furyoku hatsuden : kako kara mirai e

Energy Technology Data Exchange (ETDEWEB)

Ushiyama, I. [Ashikaga Institute of Technology, Tochigi (Japan)

2000-01-20

Windmills are one of the oldest prime movers and have been used for more than 700 years in Europe. The transition from low speed windmills for grain grinding and water pumping to high speed wind turbines for electric power generation had occurred at first, reviews the windmill technologies and the researchers before 20{sup th} century. Then describes the back ground of how the wind power generator has existed and how the four pioneers developed their wind power generator. The historical developments of windmills to wind turbines in this century are studied focusing mainly on Danish activities. Then, the effort of the development of large wind turbine such as Smith-Putnum's first MW machine in U.S.A. and other mammoth machine concept are introduced. The new concept machines such as Savonius and Darrieus wind turbines in 1920s to 1930s are also explained. Finally, the novel technologies of wind turbine covering larger machines, variable speed generators, special wing sections for wind turbines, theoretical analysis method of wind turbine performance, offshore wind turbines, and wind turbine control technologies are stated. (author)

FY 1998 Report on development of large-scale wind power generation systems. Feasibility study on development of new technologies for wind power generation (Study on the development of wind power generation systems for small-scale power grids); 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. Furyoku hatsuden shingijutsu kaihatsu kanosei chosa (shokibo keito ni okeru furyoku hatsuden system ni kansuru chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This survey includes the characteristics of small-scale power grids, feasibility studies on introduction of wind turbines in these grids, and statuses of application of wind turbines to isolated islands or the like in the advanced countries, in order to promote introduction of wind power generation systems in isolated islands or the like. It is concluded that small-capacity wind power generation systems can be possibly introduced in the intermediate- to large-scale grids in isolated islands, 1,500kW or larger in capacity, in the Tokyo, Kyushu and Okinawa Electric Power Companies' areas. A scheduled steamer ship for isolated islands can carry up to 10 ton track, and introduction of a small-scale wind turbine is more advantageous viewed from the transportation cost. Some foreign countries have the sites which have achieved a high percentage of grid connection of wind power units by stabilizing wind conditions and connecting them to the main high-voltage grids in different manners from those adopted in Japan. For developing wind turbine bodies, most of the foreign countries surveyed are concentrating their efforts on development and manufacture of large-size units, paying little attention on development of small-size wind turbines for isolated islands. For the future prospects, the promising concepts include adoption of wind turbines small in capacity and easy to transport and assemble, and hybrid systems combined with power storage units. (NEDO)

Sunshine Program-assisted project achievement report for fiscal 1981 on the development of technologies for photovoltaic power system practical application. Development of photovoltaic power generation demonstration system (Research and development for schoolhouses); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden demonstration system kaihatsu (gakkoyo system no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

Power generated by solar cells complying with NEDO (New Energy and Industrial Technology Development Organization) specifications is stored in a storage battery or is converted into AC power in a DC-AC converter for interconnection with a commercial power system, and then supplied to loads in schoolhouses. The system operates independently when the commercial power system is out. Basic plans and primary specifications had been determined, basic modules experimentally built, tested, and part of their details designed, all these up to fiscal 1980. In fiscal 1981, system design details are drawn, housetops are examined for installation, and problems that may entail installation are checked. A system data accumulation unit comes into operation for data collection. A system simulator is developed and constructed and the solar cell is checked for performance. Model arrays are built and subjected to a combination tests, when the effect of shade is also investigated. A charge control unit, high-efficiency GTO (gate turned-off) thyristor DC-AC converter, and a protection circuit in preparation for interconnection are developed, and experimentally constructed. In fiscal 1982, 20kW solar cells will be installed and schoolhouse systems will come into service operation. (NEDO)

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power generation system evaluation technology (Research and development of system evaluation technology); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu (system hyoka gijutsu no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Research and development is conducted for the acquisition of a system evaluation technique for predicting the performance of standard photovoltaic power systems and evaluation technologies applicable to residential photovoltaic power systems different from each other in terms of tilt and direction, district, solar cell type, etc. In fiscal 1999, using data collected from the Hamamatsu field test facilities and residential photovoltaic power systems installed across Japan, various design parameters, such as the irregularity compensation coefficient, temperature compensation coefficient, and the incidence compensation coefficient were determined, and, using the parameters as the secondary estimation values, design parameters were updated. In the development of simulation technologies, basic studies were made about the shadow compensation coefficient, spectral response fluctuation compensation coefficient, and the composition of polyhedral arrays. Moreover, studies were made about the estimation of large area insolation, based on the horizontal surface insolation data collected at 21 sites of residential photovoltaic power systems in the Kanto district. (NEDO)

Feasibility survey of the environmentally-friendly coal utilization system. Feasibility survey of the environmentally-friendly coal utilization system in the Philippines; Kankyo chowagata sekitan riyo system kanosei chosa. Philippines ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

With relation to the coal of the Philippines, where the expansion of the use of coal as a substitute for petroleum/plant fuel is aimed at, the paper grasped the situation of coal production/development, the trend of coal import and domestic distribution, the coal utilization trend, and environmental problems, and analyzed the situation of coal utilization/spread by industry including the commercial/residential use. The purpose of the survey is to draw up a master plan for the introduction of the environmentally-friendly coal utilization system. As to the use of environmentally-friendly coal technology which should be adopted to the coal mining industry and commercial/residential sector, cited are the introduction of coal preparation technology and power transmission technology, and the development/spread of briquette as a firewood substituting fuel. In the electric power sector, the problem is the treatment of ash after combustion and the effective use. Relating to the treatment of flue gas, there is no installation at all of desulfurization facilities and denitrification facilities. In the cement industry sector, they wish to return fuel from heavy oil to coal. For it, it is necessary to study dust preventive measures. In the other sectors, coal hasn`t been used very much. An increase in coal demand is not expected also in the future, and big problems concerning coal haven`t occurred. 42 figs., 64 tabs.

Examination of optimal data acquisition for evaluation of PV systems; Taiyoko hatsuden system hyoka no tame no saiteki keisoku shuho no kento

Energy Technology Data Exchange (ETDEWEB)

Sugiyama, H; Kurokawa, K [Tokyo University of Agriculture and Technology, Tokyo (Japan); Otani, K; Tsuda, I [Electrotechnical Laboratory, Tsukuba (Japan)

1996-10-27

A 70 kW-class photovoltaic (PV) power generation system of the Tsukuba Research Cooperation Center, Agency of Industrial Science and Technology was evaluated using hourly measurement data. Hourly solar irradiation, mean PV module temperature, hourly array generated power, hourly PV system generated power were selected as the measurement items, to examine the validity of measurement method. Furthermore, based on these measurement data, the loss factors were estimated, which reduce the system efficiency. They included the losses due to the shadow effect, the deterioration of module efficiency with the raise of temperature, the mismatch of tracking control of the maximum power point, and the reduction of inverter efficiency with the input power phenomena. To estimate these loss factors from hourly measurement data, the system was evaluated by defining characteristic parameters. As a result, it was found that the main factors were the shadow effect and the mismatch loss, which reduce the mean annual output factor of the system to 65%. 3 refs., 6 figs., 1 tab.

Load leveling by a battery system in an electric power system with a photovoltaic system; Taiyoko hatsuden system ga donyusareta denryoku keito no chikudenchi ni yoru fuka heijunka

Energy Technology Data Exchange (ETDEWEB)

Kenmoku, Y.; Sakakibara, T. [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S. [Maizuru College of Technology, Kyoto (Japan); Kawamoto, T. [Shizuoka University, Shizuoka (Japan)

1997-11-25

Storage battery-aided load leveling system is introduced into a power system having a photovoltaic power generation (PV) system, and the effect of the introduction is examined. For this purpose, the resultant improvement on the load factor and reduction in the annual cost are evaluated. Used as the load factor in the studies are the hourly records of power transmitted and received by Chubu Electric Power Co., Inc., in 1995. The output of the PV system is calculated using weather data collected in Nagoya City in the same year. Findings as the result of the studies are stated below. The maximum power is suppressed but a little if it is only the PV system that is introduced into the system. That is, a 2GW PV system introduced into the system suppresses the maximum power only by 0.5GW or less. The maximum power is suppressed more effectively when a storage battery is added, and it decreases linearly with an increase in the storage battery capacity. As for reduction in the cost, the reducing effect is higher when the rate of storage battery capacity/introduced PV capacity is higher in the presence of an introduced PV capacity of 0.8GW or more. 2 refs., 7 figs., 3 tabs.

FY 2000 report on the results of the R and D of femtosecond technology. R and D of high intensity X-ray pulse use power generation facility monitoring system; 2000 nendo femto byo technology no kenkyu kaihatsu seika hokokusho. Kokido X sen pulse riyo hatsuden shisetsu monitoring system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This project aims at creating new industrial basement technology which supports the highly information-oriented society in the 21st century, conducts the R and D of technology to control the state of light and electron in the femtosecond time domain (10{sup -15} - 10{sup -12} sec), and establishes the basement technology which exceeds the speed limit of the conventional electronics technology and also includes new functionality. Especially, in the R and D of the high intensity X-ray pulse use power generation facility monitoring system, the establishment is aimed at of the basement technology toward the realization of non-stop inspection of high speed moving objects of power generation facilities, etc. using femtosecond high intensity X-ray pulse generated in the interaction between femtosecond optical pulse and high density electron beam pulse. In this fiscal year, femtosecond X-ray was successfully generated. The pulse width of X-ray: 400fs, the wavelength: 6 angstroms, the X-ray dose generated in one collision: 10{sup 4} photons/pulse or more, and the energy of electron beam colliding with laser optical pulse: 12 MeV. Moreover, developed were the laser amplifying system and the stabilized high power femtosecond laser system. (NEDO)

Fiscal 1997 survey report. Feasibility study of the environmentally friendly type coal utilization system (feasibility study of the environmentally friendly type coal utilization system in India); 1997 nendo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa (Indo ni okeru kankyo chowagata sekitan riyo system kanosei chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

The survey was conducted of the present situation of coal utilization and the present coal situation such as the environmental state of India which is a coal producing/consuming country next to China in Asia. The paper studied a feasibility of the introduction of the environmental friendly type coal utilization system` to be planned in India. The items for survey are the present situation of economy and energy and the future trend, environmental problems on coal utilization, the present status of the coal distribution system and study subjects, the present status of coal utilization by field and study subjects, a possibility of briquette use, a possibility of coal fluidization, electric power development plans and coal combustion technology in each industry, etc. The subjects are the obligation of coal preparation to coal thermal power plants 1000 km away from coal mines starting 2001, measures taken for effective ash use, measures taken for superannuated gas furnaces, etc. Based on the results of these site surveys and reports of the investigation under consignment from CMPDI, the paper studied/analyzed possibilities of introducing the coal utilization system having actual introduction results in Japan to India, and made an investigational report. 39 refs., 12 figs., 56 tabs.

Fiscal 1976 Sunshine Project result report. Research on solar energy utilization systems (total system); 1976 nendo taiyo energy riyo system chosa kenkyu seika hokokusho. Total system

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-01

For every solar energy utilization field, its background, feasibility, impact in practical use, and R and D policy in Japan were studied. Heating and hot water supply by solar energy are already practical because of less technical problems and reasonable profitability, and cooling is also practical as far as a technical viewpoint. At present, the technical level of solar heat power generation is in the stage of basic technology, however, in the future, development of economically reasonable systems will be demanded as well as establishment of its technology. The most difficult problem for realizing practical solar cell power generation systems is cost reduction. It is also another problem that a big demand of Si for solar cells further exceeds the current yield of Si in a semiconductor industry. A small-scale hybrid solar cell power generation system applicable to the roof of general residences is already feasible. Although a solar furnace is still poor in application to industrial fields, it is expected as the leading part for a future solar heat chemical industry. (NEDO)

Arrangement of technical information on photovoltaic power generation systems; Taiyoko hatsuden system kanren gijutsu joho no seibi

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

In order to effectively contribute to the development of the technology required to put them to practical use, technical information on photovoltaic power generation systems, such as the results of overseas and domestic research and development work, which have been obtained by NEDO, were collected, categorized, sorted, and processed to make a data base. This report presents the details of the project for fiscal 1995. Papers from the 10th ECPVSEC held at Lisbon, Portugal in April 1991 and the 6th PVSEC held at New Delhi, India in February 1992, and papers published by NEDO were investigated and arranged. The total number of the papers processed in 1995 is 424 from two international conferences, and 176 from NEDO. The implementation steps consist of the collection of overseas and domestic research reports and other documents, the preparation of summaries of research results reported in those documents, the preparation of brief summaries of data obtained from the results of experiments including numerical data, and the sort and processing of them by research area, material used to fabricate photovoltaic cells, etc. The results of the above work are stored on 3.5 inch floppy disks as MS-DOS text data. The report also provides the general publication through the Internet. 7 tabs.

Space power station. Uchu hatsuden

Energy Technology Data Exchange (ETDEWEB)

Kudo, I. (Electrotechnical Laboratory, Tsukuba (Japan))

1993-02-20

A calculation tells that the amount of electric power the world will use in the future will require 100 to 500 power plants each with an output of 5-GW class. If this conception is true, it is beyond dispute that utilizing nuclear power will constitute a core of the power generation even though the geographical conditions are severe for nuclear power plants. It is also certain that power generation using clean solar energy will play important roles if power supply stability can be achieved. This paper describes plans to develop space solar power generation and space nuclear power generation that can supply power solving problems concerning geographical conditions and power supply stability. The space solar power generation is a system to arrest solar energy on a static orbit. According to a result of discussions in the U.S.A., the plan calls for solar cell sheets spread over the surface of a structure with a size of 5 km [times] 10 km [times] 0.5 km thick, and electric power obtained therefrom is transmitted to a rectenna with a size of 10 km [times] 13 km, a receiving antenna on the ground. The space nuclear power generation will be constructed similarly on a static orbit. Researches on space nuclear reactors have already begun. 10 refs., 8 figs., 1 tab.

Fiscal 1996 survey report on the environmentally friendly type coal utilization system feasibility study. Feasibility study of the environmentally friendly type coal utilization system in the Philippines; Kankyo chowagata sekitan riyo system kanosei chosa. Philippines ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Grasping the present situation of coal utilization technology in the Philippines, the paper proposed a feasibility study of introduction of the environmentally friendly type coal utilization system which seems to be needed in the future. (1) Introduction of the environmentally friendly type coal utilization system in the electric power generation sector: there are only four full-scale running coal thermal power plants in the Philippines. In the future, several coal thermal plants are planned to be constructed by 2005, but for the new installation, it is desirable to adopt fluidized bed boilers with wide application to coal kinds. In case of 0.3-1.0 million MW class plants, it is planned to adopt high grade import coals, and it will be natural to fire pulverized coal. For the processing of flue gas, it is a must to install desulfurization facilities and smoke/soot removal devices. (2) Utilization/development of domestic low grade coals: at the mine-mouth generating plant, it is necessary to investigate the economically minable amount of coal, confirm productivity, survey coal quality, etc., and select boiler. As to coal briquetting technology, it is necessary to examine coal quality for tests and make a thorough study of what technology is most suitable. 50 figs., 78 tabs.

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1981 reported. This year, technological reexamination was conducted for a 2,000 MWt commercial MHD generation plant, with evaluation carried out on the cost performance including the construction and operation cost. In addition, for the purpose of intermediate R and D towards the practicability, examination was also conducted on a system structure, concrete specifications of component element, cost of R and D including operation expenses for example, concerning an 100 MWt class experimental plant and a 500 MWt class plant. In the investigation of the overseas trend, information was summarized in detail on the experimental devices, combustors, generation channels, electrode materials, electrode phenomena, theoretical analyses, seeds, slag, component equipment, instrumental technologies, conceptual designs of generation plant, commercial plant, etc., in Soviet Union, China, Holland, India and EPRI, on the basis of the materials from the 19th MHD symposium held in UTSI and from the coal MHD specialist conference held in Sydney. (NEDO)

Improvement of adaptive fuzzy control for a photovoltaic/wind/diesel generating system; Taiyoko/furyoku/diesel hatsuden system no saitekigata fuzzy seigyo no kairyo

Energy Technology Data Exchange (ETDEWEB)

Nagaike, H; Kenmoku, Y; Sakakibara, T [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S [Maizuru National College of Technology, Kyoto (Japan); Kawamoto, T [Shizuoka University, Shizuoka (Japan).Faculty of Engineering

1996-10-27

The photovoltaic/wind/diesel generating system that uses a storage battery as auxiliary power has been proposed to supply power from the system to the independent area. In this system, it is important to generate no insufficient power from the viewpoint of effective energy utilization and minimize the fuel consumption of a diesel generator. Authors have proposed the adaptive fuzzy control that changes the shape of the membership function of input variables according to the parameter indicating the system state. However, a parameter was rapidly changed in the conventional method. This badly influences the control. Therefore, the way to determine the parameter that indicates the state of this system was improved. Assume that an input value is set to the average value between a certain point of time and the {Delta}t time as the method for determining a parameter. If the {Delta}t value is lower, the change in a membership function is more effective. As a result, a greater fuel reduction effect was obtained. 4 refs., 8 figs., 1 tab.

Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation of peripheral technology for photovoltaic power system (analysis and evaluation on photovoltaic systems); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Shuhen gijutsu kaihatsu no tame no kaiseki hyoka (taiyoko hatsuden system shingata chikudenchi)

Energy Technology Data Exchange (ETDEWEB)

Kurokawa, K; Endo, E; Tsuda, I; Nakamura, K; Sugiyama, Y; Nakazawa, S; Takaku, K; Yanagisawa, T; Kojima, T; Shimizu, K; Koyanagi, T; Onda, N; Nozaki, K; Negishi, A; Kaneko, Y [Electrotechnical Laboratory, Tsukuba (Japan)

1994-12-01

Described herein are the results of the FY1994 research program for analysis and evaluation of new storage batteries for photovoltaic power systems. Quantitative analysis and evaluation are made for introduction of intermittent operational mode in the conventional power supply system in which electrolyte units are connected in parallel and for improved performance by bubbles flowing into the line that supplies the electrolyte to the stack, in order to establish the configurations of and operational procedures for the redox flow batteries. The study on development of redox battery compares the Pb-Sn alloy felt collector with carbon fiber, Pb-Sb alloy felt and the lattice for the conventional lead acid battery, in order to optimize the new lead felt battery. As a result, it is found that the Pb-Sn alloy felt collector is better than any other device tested, because of its higher freedom with respect to electrode shape and battery size. The study on reliability evaluation of amorphous solar cells tests photoelectric conversion efficiency of a-Si solar cells, in order to elucidate the phenomena where degradation and rejuvenation compete with each other under weak light irradiation conditions. 8 figs., 1 tab.

Fiscal 1996 survey report on the environmentally friendly type coal utilization system feasibility study. Feasibility study of the environmentally friendly type coal utilization system in Malaysia and Vietnam; Kankyo chowagata sekitan riyo system kanosei chosa. Malaysia Vietnam ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This survey arranged the status of coal utilization technology and the status of coal production, supply, etc. in Malaysia and Vietnam, examined/studied coal utilization systems in both countries, and finally assessed feasibility of introducing the environmentally friendly type coal utilization system. As a country of primary energy source which is abundant in crude oil, natural gas, hydroelectric power, coal, etc., Malaysia now depends on crude oil and natural gas for 80% of its energy, and places emphasis on exploration of natural gas and oil refining. In electric power and cement industries where coal is consumed, effectiveness and environmental issues in association with coal utilization are future subjects. In Vietnam, the north is abundant in hydroelectric power and anthracite, and the south in oil and gas resource, but the north and central districts are in a state of undevelopment. Coal is used for coal thermal power generation, cement industry, and residential/commercial fuel. In the future, effective coal utilization and environmental issues will be subjects. 16 refs., 38 figs., 75 tabs.

Fiscal 1996 survey report on the environmentally friendly type coal utilization system feasibility study. Survey by region/industry in India; Kankyo chowagata sekitan riyo system kanosei chosa. Indo ni okeru sekitan riyo gaikyo chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

A survey was made in India which is a coal producing/consuming country following China in Asia and where coal is used for about 60% of the primary commercial energy. The survey was conducted on coal production/distribution/utilization and environmental issues, aiming at studying feasibility of introducing the environmentally friendly coal utilization system into every industry including the residential/commercial one, and at implementing a comprehensive master plan including Japan`s international cooperation. Total power source facilities in fiscal 1995 are 83.3 million kW, 64% of which are coal thermal power facilities and generated 260 TWh, 69% of the total output energy. Main commercial energy sources are coal, oil and natural gas, and oil is self-sufficient. The survey this time did not examine very well the actual state of the environmental pollution problem caused by the coal utilization. Indian coal is high in ash content but low in sulfur content, and therefore, SOx polluting air has not been a very important problem so far, but soot/smoke is almost the problem. Further, ash treatment after combustion at boilers, etc. is expected to be a big problem in the future. 49 figs., 88 tabs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - international joint demonstration and development of photovoltaic power generation systems (Demonstrative research on photovoltaic power and micro hydraulic power hybrid system); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system kokusai kyodo jissho kaihatsu (taiyoko micro suiryoku hybrid system jissho kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

A photovoltaic (PV) power plant is compounded with a micro hydroelectric (MH) power plant in Vietnam, who has a dry season and a rainy season, to structure a stabilized power supply system to compensate drawbacks of the respective systems. Full load operation is being performed to advance the development of technologies to optimize and improve the performance and reliability of the system. The works include (1) site surveys, and decision on a location to execute the demonstration research, (2) design of the system, and design and fabrication of devices, and (3) the building construction thereof. In Item (1), the location was decided at Trang Village, Vietnam from such installing conditions as annual average insolation, water channels for wheel turbines, energy complementing relations, load demand amount, and difficulty of installation. In Item (2), the system consists of PV:100 kW/MH:25 kW/control system, wherein the MH is an inductive generator. The Main devices include generators, batteries, inverters, system control panels, and a meteorological data recording device. In Item (3) land survey and development were completed. (NEDO)

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1983-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1982 reported. This year is the final year of this research; therefore, reexamination was made from the practical standpoint on the R and D of coal fired MHD generation, evaluating the present technological level as well as clarifying the development procedures, with proposals made as to the R and D from now on. The present technological level in the practicability is still in the basic stage, where the essential problem is the development of combustors, air heaters and generation channels in particular. An examination was conducted for the problems, procedures and period of the development for each component equipment, with the results provided as materials for studying the path to the experimental plant of 100 MW heat input. In the method of proceeding with the R and D in the future, it was decided as essential, in order to enter the stage of the experimental plant from the element technology development, that R and D is carried out on the unestablished component technology, making sure that no excessive risk is taken in scaling up to the next stage. (NEDO)

Investigations in fiscal 2000 on feasibility of environment friendly coal utilization system. Feasibility survey on environment friendly coal utilization system in India; 2000 nendo kankyo chowagata sekitan riyo system kanosei chosa hokokusho. Indo ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Taking the area of the clean coal technology (CCT) effective for energy conservation and environment preservation as the object, a feasibility survey has been performed on executing a model project in India. About 70% of the total power generation capacity in India depends upon coals existing in abundance inside the country. Since the local coals are high in ash, low in sulfur, and low in calorie, the environmental problem related to thermal power plants is the disposition of fly ash. The Central Electricity Authority of India expects solving this problem by CCT introduction. It also expects increase in combustion efficiency by using ultra-critical boilers. The Indian cement industry often uses in-house electric power generation facilities because of high electric power cost, wherein the produced coal ash is used as a cement raw material. The matter of the strongest interest is the introduction of a high-efficiency combustion system that depends on low-grade coals. Among the CCTs, strong interest was shown in the fluidized bed cement kiln and the circulating fluidized bed boiler. The iron and steel industry has expectations toward effective coal washing technologies and coke manufacturing technologies. (NEDO)

Economical effect of introducing a photovoltaic system on future electric power system; Shorai no denryoku keito eno taiyoko hatsuden system donyu ni yoru keizaiteki eikyo

Energy Technology Data Exchange (ETDEWEB)

Akata, N.; Kenmoku, Y.; Sakakibara, T. [Toyohashi University of Technology, Aichi (Japan); Kawamoto, T. [Shizuoka University, Shizuoka (Japan); Nakagawa, S. [Maizuru National College of Technology, Kyoto (Japan)

1997-11-25

Economic impact of introduction in the future of photovoltaic power generation (PV) systems into the commercial power system is discussed from the electric utilities` point of view. In the discussion, future demand for power is predicted from the demand for power in the base year, and the optimum power source configuration corresponding to the future demand and power generation curve are worked out by use of linear programming. Then, the fixed cost and variable cost are calculated for each of the power source components, and then the expected reduction in cost per unit of power generated is calculated. As the power sources, the hydroelectric, pumped storage, oil-fired, coal-fired, LNG-fired, combined cycle, and atomic technologies are considered. The conclusion is stated below. Upon introduction of PV power equivalent to 10% of the maximum demand power, the maximum power in the service area of Chubu Electric Power Co., Inc., will be reduced by 1.23GW in 2025, and the yearly demand power by 5472GWh. Since PV lowers the peak, an increased number of power sources low in variable cost will be used although such will be low in tracking capability. An increase in power demand will enhance the cost reducing effect of the PV system. 5 refs., 4 figs., 3 tabs.

Development for environmentally friendly and highly efficient energy utilization system in fiscal 1998. Pt. 3. Research on highly efficient and effective energy utilization technology (Research on design technology for optimal system); 1998 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu. 3. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

This paper summarizes achievements during fiscal 1998 on researching part of the energy transportation and storage technologies, energy supply and utilization technologies, environmental load reducing technologies, and optimal system design in the 'research on highly efficient and effective energy utilization technology'. With regard to energy transportation and storage technologies, researches and developments were performed on a vacuum adiabatic transportation piping system, surfactants used for high-density heat transportation and high-density latent heat transportation technologies. In the field of energy supply and utilization technologies, researches and developments were carried out on a heat supply system using high-performance heat pumps capable of using multiple kinds of fuels, and a compression and absorption type hybrid heat utilization system. For the environmental load reducing technologies, research and development were performed on a power saving heat pump system utilizing natural coolant. In researching the optimal system design technologies, overall adjustment was made on the element technologies, whereas technological discussions and site surveys were executed by the committees at the same time. The latest achievements accomplished to date was published in a book. (NEDO)

Development for environmentally friendly and highly efficient energy utilization system in fiscal 1998. Pt. 1. Research on highly efficient and effective energy utilization technology (Research on design technology for optimal system); 1998 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu. 1. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

This paper summarizes achievements of the researches during fiscal 1998 on researching a highly efficient and effective energy utilization technology. With regard to technologies to recover and convert unutilized energies, a process simulator was developed, basic internal structure was discussed by experiments and simulation, and substance migrating and heat exchanging characteristics were identified by using partial testing devices. These researches and developments were performed for the waste heat reforming and recovering systems used in chemical plants. In developing a thermoelectric generation system using low calorie exhaust gases, thermoelectric power generating materials were developed, a powder manufacturing technology was developed, a thermoelectric conversion element bulking technology was developed, a thermoelectric power generation system using porous structures was simulated, development and concept design were carried out on system element technologies. In the research and development of the thermoelectric generation system using low calorie exhaust gases, advanced materials and modules were manufactured, the modules were evaluated, and power generation systems were researched. In addition, researches were performed on energy transportation, supply and utilization technologies, and on environmental load reducing technologies. (NEDO)

FY 1998 report on the results of the New Sunshine Project - Development of the commercialization technology of the photovoltaic power system. Verification study of the photovoltaic power system - Research on engineering methods for cost effective PV installation (Data book. Survey of examples of PV systems in the world); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system no jissho kenkyu (tashu secchi koho no kenkyu kaihatsu (bessatsu data shu sekai no taiyoko hatsuden system jirei chosa))

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the purpose of promoting installations of PV system and making use of the unused space for which a rise in the PV demand equal to that in houses, building roofs, etc. is expected, examination/research for much newer forms of land installation are proceeded with, and evaluation/verification of reliability/durability are conducted of new installation processes using thin film solar cells, adhesives, etc. In this fiscal year, for the purpose of contributing to the study to be widely made on various installation processes, the actual survey was conducted of various applications of the system which are being planned and introduced in Japan and abroad. Emphasis was placed on making new forms of installation applicable to Japan clear. Concretely, in addition to the study of new examples, the following were conducted: renewal of existing details of the survey, and electronic filing of system block charts/pictures as a key to the information supply by electronic media such as CD-ROM. Also conducted was a study for translating the contents into English or writing them both in Japanese and English. Further, the database was made newer using these results of the most up-to-date survey, and at the same time, the results were indicated of the statistical analysis of the usage, system form, power generation scale and element equipment of various systems. (NEDO)

Fiscal 1997 survey report. Feasibility study of the environmentally friendly type coal utilization system (survey of the coal utilization in Pakistan); 1997 nendo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa (Pakistan ni okeru sekitan riyo gaikyo chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This paper made a literature survey, hearing survey, site survey/study on the coal in Pakistan such as the coal utilization system and the environmental situation, etc., and aimed at pre-examination for the survey of the introduction of the environmentally friendly type coal utilization system to be planned in Pakistan in the future. The examination, data collection and preparation were conducted in terms of the following items: the structure of coal consumption in energy supply, structure of coal consumption, mainly of domestic brown coal consumption, the situation of coal utilization by industry and by region, environmental problems caused by coal utilization such as air pollution, the trend of policies of environmental regulation, etc. The literature on the following was obtained and surveyed: the situation of economy/energy in Pakistan, coal utilization technology by industrial field, and environmental protection technology. The hearing survey was made to institutions concerned, corporation groups and men of learning and experience. Site surveys were conducted for the typically selected coal utilization equipment and existing environmental protection equipment. 66 figs., 56 tabs.

FY 1998 Report on development of technologies for commercialization of photovoltaic power systems. International co-operative project (IEA implementing agreement for a co-operative programme on photovoltaic power systems); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai kyoryoku jigyo. IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Described herein are outline of the International Energy Agency/Co-operative programme on Photovoltaic Power Systems (IEA/PVPS). Japan signed the IEA Implementing Agreement for a co-operative programme on Photovoltaic Power Systems in April 1993, and has been participating in the programme for research and development, demonstration, analysis, information exchange and introduction promotion, among others. This programme is managed by Executive Committee composed of the representatives, one nominated by each participating country, and each task is managed by each Operating Agency. There are 9 tasks (Tasks 1 to 9), and Executive Committee deliberates and approves the plans, and manages the progresses, budgetary plans and budgets for each task. IEA implementing agreement for a co-operative programme on PVPS, originally set effective for 5 years, has been extended for another 5 years to 2002, and the second phase activities have been started. The 9th to 11th Executive Committee meetings were held during the 1997-1998 period in Denmark, ROK, Spain, Austria and Australia, respectively. (NEDO)

Achievement report for fiscal 1998 on development of environmentally friendly high-efficiency energy utilization system. 2. Research of technology of effectively utilizing high-efficiency energy / research of optimum system designing technology; 1998 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu. 2. Kokoritsu energy yuko riyo gijutsu no kenkyu, saiteki system sekkei gijutsu no kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

This 2nd volume deals with the transportation and storage of energy in the above-named research. In search of technologies for transporting exhausted heat from the industrial area to the urban section for consumers to utilize the heat for driving their air-conditioners and hot water supply systems, the decomposition and composition reactions of methanol are utilized for a long-range transportation system. The subjects taken up in this connection include the research and development of a methanol energy system, non-equilibrium high-efficiency methanol decomposition technology, multifunctional catalysts, and highly active/selective catalysts capable of promoting reversible endoergic/exoergic reactions. Research and development is also conducted of a high-efficiency heat pump technology using hydrogen-absorbing alloys, and such a pump will realize an air-conditioning system not dependent on chlorofluorocarbon. In the research and development of a long-range heat transportation system using hydrogen-absorbing alloys, a study is made of technologies of heat/hydrogen recovery, transportation, and utilization. (NEDO)

System approach on solar hydrogen generation and the gas utilization; Taiyo energy ni yoru suiso no seisei oyobi sono riyo system ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Fujii, I; Hirooka, N; Deguchi, Y; Narita, D [Meiji University, Tokyo (Japan)

1997-11-25

An apparatus is developed to establish a system which allows utilization of hydrogen safely and easily, and its applicability to a hydrogen system for domestic purposes is tested. The system converts solar energy by the photovoltaic cell unit into power, which is used to generate hydrogen by electrolysis of water at the hydrogen generator, stores hydrogen in a metal hydride , and sends stored hydrogen to the burner and fuel cell units. It is found that a hydrogen occluding alloy of LaNi4.8Al0.2 stores hydrogen to approximately 80% when cooled to 20 to 25degC, and releases it to 10% when heated to 40degC. The fuel cell uses a solid polymer as the electrolyte. The hydrogen gas burner is a catalytic combustion burner with a Pt catalyst carried by expanded Ni-Al alloy. The optimum distance between the burner and object to be heated is 22mm. High safety and fabrication simplicity are confirmed for use for domestic purposes. The system characteristics will be further investigated. 4 refs., 8 figs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Demonstrative research on photovoltaic power generation system (Study on grid interconnection technique for dispersed photovoltaic systems under high-density connection); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system no jissho kenkyu (komitsudo renkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Interconnecting photovoltaic systems with power transmission systems under high density affects power quality, protection, maintenance and stability of the transmission lines. As measures to deal with this issue, investigations are being made on (1) elucidation of effects imposed on transmission lines, (2) establishment of countermeasure technologies, and (3) technological options leading to higher value addition. In Item (1), with an objective to identify the current status, evaluations were given on prevention of independent operation of commercially available inverters, and on their stabilizing performance against system fluctuation. The evaluations were performed by conducting a test for multiple unit operation in parallel and a single unit performance test. The test result indicated that, while the prevention performance can be satisfied, maloperation has occurred frequently due to the system fluctuation, and that voltage rise due to the inverter was suppressed effectively by using the simultaneous control of active and reactive powers. In Item (2), a demonstration test was launched on an inverter incorporating a new prevention device. The effective means to suppress voltage rise in the high-voltage power transmission lines is the discrete voltage suppression by controlling reactive power. In addition, a proposal was made on a new voltage and phase detection method that can be used at short circuit of the high-voltage transmission lines. In Item (3), having a photovoltaic system contain a small size batteries was found effective in suppressing the power generation output variation, and in smoothing the loads. (NEDO)

Tidal energy conversion. Renewable energy; 3-3 choseki / choryu hatsuden. II. saisei kano energy ni yoru hatsuden

Energy Technology Data Exchange (ETDEWEB)

Makino, T. [Tobishima Corp., Tokyo (Japan)

1998-10-15

There are not much examples applying tidal energy conversion, but tide and tidal current phenomena can be forecasted so correctly regardless of weather that the applying tidal energy is to be expected in the future. The largest tidal power plant is at Reims in France and install 24 Kaplan turbines each of which outlet power is 10,000kW (rotational direction is reversible) on the breakwater (750m is length). Tidal range at this place being 8.5m on an average, during the period of flowing seawater into the reservoir and on the contrary during the period of discharging seawater to the sea generation is both performed. Though there is no actual result of tidal power plant in Japan, in tidal current power system experimental generators have been installed at Kurushima channel and Naruto channel. Nihon University carried out various kinds of experiment using a Darius turbine (1.6m in dia.) at Kurushima channel and got outlet power of 3kW at the maximum (1983-`88). There are few coasts which have sufficient tide range in Japan, but there are so good many applicable coasts in China and Southeast Asia that the tidal power generation is to be expectatively. 12 refs., 5 figs., 1 tab.

Empirical analysis of consumer decision making processes on setting up residential photovoltaic systems; Jutakuyo taiyoko hatsuden system no donyu ni kansuru ishiki bunseki

Energy Technology Data Exchange (ETDEWEB)

Iuchi, M; Okawara, T; Tsuchiya, T [Central Research Institute of Electric Power Industry, Tokyo (Japan); Konakayama, A [Tokai Univ., Tokyo (Japan)

1996-10-01

Inquiries are made to consumers (monitors) who own a photovoltaic power generation system at their houses, and their replies are analyzed for isolating the factors involving the purchase of this domestic power generating system. A large part of the monitors are 40-50 years old males in the relatively high income bracket. They are very interested in problems of global environments, resources, and energy, and are inclined to assume value-consciousness and life-style which encourage them to love health and nature, participation in social functions, and decision-making. The need for the protection of global environments occupies more than 90% of the reasons for their adoption of photovoltaic power generation. The monitors strongly feel, however, that they paid very much for the apparatus although they were granted some subsidies. As for motives for their acquisition of the system, their answers are categorized into four groups according to their responses as to whether (or not) they expect economic merits though dependent on future development and whether (or not) they accept the current energy policies. The result shows that some monitors think like average citizens. 17 refs., 22 figs., 11 tabs.

Energy saving house utilizing photovoltaic system. 3; Taiyoko hatsuden wo donyushita sho energy jutaku. 3

Energy Technology Data Exchange (ETDEWEB)

Itsumi, J. [Kumamoto Institute of Technology, Kumamoto (Japan)

1997-11-25

Various measurements are conducted in an energy-efficient house equipped with a photovoltaic power generation system and actually lived in by people, and matching between the household load and photovoltaic power generation, and the consumption of power, are examined. As the result investigation of power consumption in the house, it is found that 13.31kWh is consumed in the daytime in winter, and 14.15kWh in summer. Thirty-two 153W modules are used, and they produce 12.74kWh in four hours on a fine summer day, which amount nearly satisfies the demand of the household. As for the records during a year beginning in May, 1996, it is found that an annual amount of 4326kWh was generated, with 68% being surplus and 32% consumed for the household. Details of the household consumption were that 49.2% was consumed for house heating and cooling and 34.1% for cooking, the two in total occupying more than 80% of the whole household consumption. Energy-saving behavior is evaluated by comparing the energy-efficient house with some ordinary residential houses in Kumamoto City, and it is found that there is a yearly difference of 104,310 yen in electricity bill or 47% in energy saving effect. 5 refs., 4 figs., 4 tabs.

Feasibility study of environmentally friendly type coal utilization systems. Feasibility study of environmentally friendly type coal utilization systems in sectors except the coal industry in China; Kankyo chowagata sekitan riyo system kanosei chosa. Chugoku no sekitan kogyo igai no bumon ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

For the purpose of working out a comprehensive master plan for application of the coal utilization system, the paper surveyed and studied the coal utilization system in terms of environmental measures and efficiency improvement in the utilization of coal. As a result of the discussion with NEDO and the National Planning Committee of China, Liaoning Province (the whole China) and Shenyang City were selected as a model area and a model city for the survey and study. As energy conservation measures taken in the former, desirable are intensifying/capacity-increase of boilers, kilns, etc. and adoption of new-type/high-efficient equipment. Also expected are reinforcement of combustion control and improvement of efficiency by using coal preparation, industrial use coal briquette, etc. Measures taken in the latter are the same as those taken in the whole China. As SOx reduction measures for Liaoning Province, desirable is installation of dry-type desulfurization equipment and simple desulfurization equipment. As dust prevention measures for it, desirable is installation of electrostatic precipitators or high-functional bag filters. SOx reduction measures for Shenyang City are the same as those taken in the whole China. SOx can be reduced by using coal-prepared low-sulfur coal and industrial use coal briquette added with desulfurizing agent. 88 figs., 163 tabs.

Application of adaptive control to windmill power system by computer simulation. Simulation ni yoru tekio seigyo no furyoku hatsuden system eno oyo

Energy Technology Data Exchange (ETDEWEB)

Tomiya, T.; Matsuo, T. (Anan College of Technology, Tokushima (Japan)); Suzuki, T.; Kamano, T. (Tokushima University, Tokushima (Japan). Faculty of Engineering)

1991-07-20

A windmill power system using load DC generators having resistive load was subjected to discussions by simulation on development of a control method and its output characteristics to draw out the wind energy effectively even when the system characteristics are unknown. The control method used is a mountaineering method available among adaptive control methods. As a result of discussions, the effectiveness of the mountaineering method was confirmed in controlling the output either when the wind velocity is constant or variable. With respect to the control interval, which is a problem in carrying out a control, it was found that the control output stabilizes as the control interval is increased when the wind velocity is constant, but takes longer time before reaching a steady state output. When the wind velocity is variable, the increased control interval reduces the output slightly because of the load resistance change becoming coarser. It was also revealed that, on simulated natural winds, this control method can draw out more energy than by a fixed load resistance. 7 refs., 11 figs., 1 tab.

FY 2000 report on the results of the development of technology for commercialization of the photovoltaic power system - R and D of evaluation technology of the photovoltaic power system. R and D of the system evaluation technology; 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu - Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu - System hyoka gijutsu no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Based on the evaluation method for the performance prediction system of the standard photovoltaic power system, the R and D were conducted of the system generation output prediction technology which is general-purpose, simplified and applicable to various kinds of photovoltaic power system for residential use, and the FY 2000 results were summed up. In this fiscal year, the photovoltaic power system for residential use was increasingly installed at 15 places, and 100 sites in total were made database and analyzed. As to the development of simulation technology, technology of calculation was established such as the simulation of multi-plane array composition and correction of multi-plane array incidence. Further, technical information on system trouble and knowledge/information/proposal for reducing power generation loss were arranged by design parameter. Using the data on solar radiation/power loss at sites of residential use photovoltaic power systems installed in the Kanto area, value analysis of the capacity of wide area facilities of the photovoltaic power system was made by the statistical method. This study was compiled into the revised edition of design manual. (NEDO)

Generation by heated rock. Technology for hot dry rock geothermal power; Yakeishi ni mizu de hatsuden. Koon gantai hatsuden no gijutsu

Energy Technology Data Exchange (ETDEWEB)

Hori, Y. [Central Research Inst. of Electric Power Industry, Tokyo (Japan)

1995-06-15

Japan is one of the most distinguished volcanic country in the world and about 8% of the active volcanos of the world are distributed in Japan. This kind of a large quantity and natural energy resource near us are used as hot springs in the whole country and as for electricity in 10 geothermal power stations. In future, if this enormous underground geothermal energy could be utilized safely and economically by using new power generation system like hot dry rock geothermal power generation (HDR), it may contribute a little to the 21st century`s energy problem of Japan. Central Research Inst. of Electric Power Industry has installed `Okachi HDR testing ground` in Okachi-machi of Akita Ken, and is carrying out experiments since 1989. Hot dry rock geothermal power generation is a method in which water is injected to the hot dry rock and the thermal energy is recovered that the natural rock bed is used as a boiler. However, development of many new technologies is necessary to bring this system in practical use. 9 refs., 5 figs., 1 tab.

Fiscal 1997 feasibility survey of an environment friendly type coal utilization system. Feasibility survey of the environment friendly type coal utilization system in Malaysia and Vietnam (case of Vietnam); 1997 nendo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa (Malaysia oyobi Vietnam ni okeru kankyo chowagata sekitan riyo system kanosei chosa (Vietnam ban))

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

The paper grasped the state of coal utilization by coal consumption field, the state of coal physical flow in Vietnam, etc., surveyed/studied a possibility of introducing the environment friendly type coal utilization system, and assessed the possibility. As to energy resources, the north is abundant in hydroelectric and coal (mainly anthracite) resources, and the south in oil and natural gas resources. Coal production in fiscal 1997 is planned to be 10 million tons. Coal preparation technique presently available is only grain size sieving. Accordingly, it is necessary to study for heightening efficiency of facilities and modernizing facilities in accordance with the introduction of the environment friendly type coal utilization technology. During the study, it is possible to propose improvement on coal processing technology (coal preparation technology). Assessment and study are made especially of the coal selection system, fine coal recovery system and waste water treatment system. For the plan on new coal-fired power plants (300MWtimes4), there is left much necessity of proposing studying models considered of the anthracite combustion technology and environmental improvement and of assessing/studying them. 60 figs., 117 tabs.

Development in fiscal 1999 of technology to put photovoltaic power generation system into practical use. Demonstrative study on photovoltaic power generation system (Research on high-density linking technology); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system no jissho kenkyu (komitsudo renkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Taking a photovoltaic power generation system linked to distribution lines at high density as the object of discussion, investigative studies were performed on electric power quality, clarification of various problems including effects on operation and protection of distribution lines, the corrective measures thereof, and enhancement of power quality by utilizing inverters. This paper summarizes the achievements in fiscal 1999. In clarifying the problems associated with high-density linkage, discussions were given on possible amount of PV introduction into the distribution lines as seen from the electric performance aspect including power quality and safety. Placing the importance on identifying the current status of single operation preventing technologies, demonstrative discussions were given on the single operation preventing performance of commercially available inverters in testing 84 inverters operated in parallel by using the Rokko testing installation. In discussing the corrective measure technologies, development has been performed on a decentralized voltage stabilizing device based on injection of reactive power into high-voltage distribution lines as a measure to suppress voltage rise in the distribution lines. The reasonability of the fundamental characteristics thereof was verified by using the Akagi testing facilities. In addition, improved design was progressed on the two-step active prevention system. Commencement has taken place on verification of the reasonability of the fundamental characteristics and tests on parallel operation of multiple number of units. (NEDO)

FY 1977 Annual report on Sunshine Project results. Survey and research on systems utilizing solar energy (Heat-storage subsystems); 1977 nendo taiyo energy riyo system chosa kenkyu. Chikunetsu sub system

Energy Technology Data Exchange (ETDEWEB)

NONE

1978-03-31

This project is aimed at surveys and researches on materials for heat-storage systems for solar thermal power generation systems and solar energy systems for air conditioning and hot water supply; analysis of current status of heat-storage subsystems and extraction of problems involved therein; and sorting out the research themes. Surveyed are the tower type light-collecting systems under development for solar thermal power generation systems, heat-storage subsystems with flat- and curved-surface type light-collecting systems; heat-storage systems being developed by the Electrotechnical Laboratory; heat-storage materials for solar thermal power generation techniques; regenerative heat exchangers; thermodynamic considerations for heat storage and molten salt techniques; and relationship between heat storage material properties and containers. Problems involved in each item are also extracted. The heat-storage subsystems for solar energy systems for air conditioning and hot water supply are now being under development, some being already commercialized, and the classification of and surveys on the related techniques are conducted. At the same time, problems involved in the heat-storage subsystems, being developed for residential buildings, condominiums and large-size buildings, are also extracted. The research themes for the heat-storage subsystems for solar air conditioning and hot water supply systems are sorted out, and case studies are conducted, based on the discussions on, e.g., thermal properties of heat-storage materials, behavior and heat transfer characteristics of latent heat type heat-storage materials, and corrosion of the heat-storage materials. (NEDO)

Achievement report for fiscal 1981 on New Energy and Industrial Technology Development Organization-entrusted projects on the development of photovoltaic power system practical application technologies. Research and development of a photovoltaic power demonstration system (Research and development of private house systems); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden demonstration system no kenkyu kaihatsu (kojin jutakuyo system no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

Private house systems are investigated for system constitution, detailed design is drawn, and a model house is built. For system control and protection, the power conversion unit is provided with a control which functions to constantly maximize the output. The power conversion unit without an internal oscillator is equipped with another control which functions to output single-phase AC power coincident with the commercial system in voltage and frequency when it is interconnected with the system. The power conversion unit is so designed that it is automatically stopped for the prevention of reverse voltage imposition on the commercial system in case of interruption in the commercial system. In the study of roof panel type solar cells, real-size panels are designed and fabricated, capable of a total of 3kWp. In the study of element devices, a real-size conversion unit is experimentally built and tested in combination with a rectifier and solar cells, and it is found that the unit functions as expected. A model house is designed incorporating the results of the above-said research, and is built in the precinct of a laboratory of the Fuji Electric Co., Ltd. (NEDO)

Research report of FY 1997 on the environmentally acceptable coal utilization system feasibility survey. Environmentally acceptable coal utilization system feasibility survey in Malaysia and Vietnam (Malaysia); 1997 nendo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa (Malaysia oyobi Vietnam ni okeru kankyo chowagata sekitan riyo system kanosei chosa (Malaysia ban))

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

In this survey, the coal utilization status in individual consumption sectors and coal distribution status in Malaysia are summarized as basic data for the introduction of environmentally acceptable coal utilization systems. In this fiscal year, the status of existing coal utilization technology and environmental issues in Malaysia are summarized as basic data for the introduction of above-mentioned systems on the basis of data and information collected by basic research and site survey in FY 1996. Malaysia is one of the rich countries producing the primary resources with crude petroleum, natural gas, hydro-power, and coal. The coal demand will be realized after saturating LNG development since 2000. The major coal consumption industries are power generation sector and cement industry sector. As expected increase in the future coal consumption, efficiency of coal utilization and environmental issues are problems in the future. Based on the FS results of this survey, the survey will be continued for planning and conducting the model project required from Malaysia. 8 figs., 34 tabs.

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 3. Conceptual design of the total system; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 3. Zentai system gainen sekkei

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This paper describes the research result on the conceptual design of the total system for the WE-NET project in 1996. Basic conditions are as follows: solid polymer water electrolysis, hydrogen combustion turbine power generation, hydrogen transport/storage through ammonia medium, power generation scale of 1000-4000MW (2-5 yen/kWh), and transport distance of 5000-20000km between supply and consumption places. The system efficiency was estimated to be 68% and 23% at an ammonia arrival time and power sending end, respectively, and it was dependent on a transport distance, while no power generation scale. The power cost was estimated to be 7 yen/Mcal and 33 yen/kWh, respectively. The system efficiency at a sending end was lower by 15% and 2% than that of the liquid hydrogen and methanol system, while the power cost was higher by 0 and 8 yen/kWh, respectively. It was necessary for loss reduction of this ammonia system to develop a new high-efficiency ammonia synthesis process, and hydrogen separation (decomposition/refining) process. 80 figs., 52 tabs.

Evaluation report on research and development of 'the comprehensive water recycling and utilization systems'; 'Mizu sogo saisei riyo system' no kenkyu kaihatsu ni kansuru hyoka hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1991-08-01

This research and development project is aimed at treatment of sewage, industrial waste water and the like at lower cost for reutilization, while efficiently producing methane or the like by the systems annexed to the water treatment systems with high-concentration bio-reactor systems incorporating separation membranes. The waste water types studied to be treated by these systems include sewage discharged in large quantities and waste water containing oil/fat and protein (low-concentration waste water), and starch-, alcohol and paper/pulp-containing waste water, and excrements (medium-concentration waste water). The project has found the optimum systems, by adequately configuring the separation membrane modules, and combining dissolution of suspended solid with methane fermentation reactors for selective treatment of organic substances; improved efficiencies of removing organic substances and producing methane by fermentation, and realized reduction in quantities of discharged sludge; and thereby established the bases for the new waste water treatment techniques. The reactor systems developed for water treatment are those based on biological removal of nitrogen. They greatly reduce treatment time to produce treated water of high quality. For treatment of sludge, the techniques have been developed to convert sludge into oil. These results are well applicable to various areas, e.g., sewage treatment, and food and pulp industries. (NEDO)

Fiscal 1980 Sunshine Project research report. Development of hydrothermal power plant (Development of binary cycle power plant). Supplement. Research on plant technology; 1980 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden palnt no kaihatsu bessatsu (plant gijutsu kenkyu chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1981-03-01

Research was made on new geothermal power plant technologies such as downhole pump and dual boiler for development of the 10MW class binary cycle power plant using geothermal energy. In heat cycle calculation of dual boilers, the cycle performance of a subcritical multi-stage evaporation cycle with R-114 heat medium was obtained through cycle calculation, heat conduction calculation and profitability calculation. The calculation result suggested possible considerable reduction of heat loss due to heat exchange at a preheater and evaporator, and considerable reduction of discharge loss of hot water by such multi-stage evaporation cycle. In American, every geothermal binary cycle power plant adopts pressurized heat exchange between hot water and heat medium by using downhole pumps, and pressurized reinjection of hot water into the ground. Since downhole pump itself not yet satisfies its requirements enough, it is said that Department of Energy is now under consideration on the future R and D. (NEDO)

Starting and stopping control on power conditioner in photovoltaic power system; Taiyoko hatsuden system ni okeru power conditioner no kido teishi seigyo ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Hirose, M.; Ishihara, Y.; Todaka, T.; Harada, K. [Doshisha University, Kyoto (Japan); Oshiro, H.; Nakamura, H. [Japan Quality Assurance Organization, Tokyo (Japan)

1997-11-25

Studies are made about the control of the power conditioner over the maximum power point tracking (MPPT) function in a photovoltaic power generation system. The analysis is conducted by means of computer simulation into the effect of a start/stop function added to the control of MPPT and the effect on the generation of power of the setting of parameters in the start/stop function. The reduction in output power due to difference between the actual operation point and the optimum operation point is evaluated by use of a load matching correction factor. In this simulation, it is assumed that the solar cell array consists of 13 rows in 5 parallel columns, is capable of a normal output of 3.149kW, has a panel tilted at 30 degrees, and faces due south. The power conditioner is assumed to be a system rated at 3kVA, equipped with system interconnection and back flow features. As a result, it is learned that the stop voltage should be set at 180V or lower and the steady voltage near 185.5V for a good result and that there is not much need after all for the start/stop technique. 2 refs., 8 figs., 2 tabs.

NEDO Forum 2000. Solar technology development session (photovoltaic power generation system and our living); Taiyoko gijutsu kaihatsu session. Taiyoko hatsuden system to watashi tachi no kurashi

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-09-01

The following themes were presented at the present session: (1) energy and environmental problems, and expectation to the photovoltaic power generation system, (2) our living and photovoltaic power generation, and (3) energy policies of Kobe Municipality based on lessons from the earthquake disaster. Item (1) describes: if the total electric power obtained in 20 years from the photovoltaic power generation system of 3 kW output for residential houses is converted into amount of petroleum consumed by thermal power plants, it corresponds to about 850 twenty-liter polyethylene tanks; to build a photovoltaic power generation system, energy corresponding to about 100 polyethylene tanks is used; therefore, subtraction results in saving of about 750 tanks; ordinary houses discharge about 3,500 kg of CO2 annually; and the photovoltaic power generation system serves to reduce about 1,000 kg of CO2 emission annually. Item (2) describes: in markets in 2010, more than 80% of the power generation system is served for housing; profitable price of power generation value is about 55/kW; more than 50% of the value is occupied by the value for other than power generation; and more than 80% of the system for housing will be of roof-material type in 2005. Item (3) introduces the energy diversification taken by Kobe Municipality after the earthquake disaster, and the energy policies, including the 'life spot' policy. (NEDO)

Performance analysis on borehole energy storage system including utilization of solar thermal and photovoltaic energies; Taiyonetsu hikari riyo wo fukumu borehole energy chozo system no kenkyu

Energy Technology Data Exchange (ETDEWEB)

Saito, T [Tohoku University, Sendai (Japan); Yamaguchi, A [Matsushita Electric Co. Ltd., Osaka (Japan)

1996-10-27

A permanent borehole energy storage system utilizing solar energy and waste heat from coolers is simulated, to be used as an air conditioning system for super-tall buildings. A 100m-long pipe is buried vertically into the ground, and a heat medium is caused to circulate in the pipe for the exchange of heat with the soil. Thirty borehole units are used, each measuring 9m{times}9m (with the pipe pitch being 3m). Solar cells occupying half of the wall surface facing south and solar collectors installed on the roof supply electric power and heat for cooling and warming. Heat in the ground is transferred mainly by conduction but also is carried by water and gas in movement. So, an analysis is carried out using an equation in which heat and water move at the same time. Because waste heat from cooling and warming systems is accumulated in the ground and none is discharged into the air, big cities will be protected from warming (from developing heat islands). As compared with the conventional boiler-aided air conditioning system, a hybrid borehole system incorporating solar collectors and solar cells will bring about an 80% reduction in CO2 emission and annual energy consumption. 7 refs., 3 figs., 4 tabs.

Research and development of evaluation system for photovoltaic power generation system. Research and development on evaluation technology of photovoltaic power generating systems; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. System hyoka gijutsu no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the study results on R and D of evaluation technology for photovoltaic power generating systems in fiscal 1994. (1) On preparation of test facility and measuring instrument, the pyrheliometer with a photovoltaic device as sensor was developed. (2) On collection and analysis of data, operation data of interconnection system, stand alone system, and water pump system were collected, and energy flow was analyzed. The following were also analyzed: time variation of a-Si solar cell modules, fluctuation correction factor of spectrum response, that of nonlinear response of crystalline solar cells, effect of solar radiation intensity and wind velocity on temperature rise of modules, and correction factor of DC circuit losses. (3) On on-site measurement technology, the array output measuring instrument was developed on the basis of capacitor charge system. (4) On simulation technology, simulation analyses of energy flow, optimum capacity of interconnection systems, correction factor of solar radiation, and capacity of array storage batteries were conducted. 3 figs., 6 tabs.

Preparation of the FY 1998 photovoltaic power system related technology information; 1998 nendo taiyoko hatsuden system kanren gijutsu joho no seibi

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The paper outlined the FY 1998 data preparation project on the photovoltaic power generation. In the field of solar cells and photovoltaic power system, a part of the 13th EUPVSEC data and the 25th IEEEPVSEC data are made database. As to the NEDO related papers, the papers made public in FY 1998 are made database. The number of the object papers totaled 982 including 943 in international conference relation and 39 in NEDO relation. The number of the papers included in 'photovoltaic power generation database (literature)' totaled 4010. Steps of database preparation are collection of the research papers/various reports made public in Japan and overseas, abstract making, preparation of the result data/experimental data, keyword supply, classification/adjustment, and description items. The FY 1998 is the fifth year from the start of this database, and the collected/adjusted technical information on solar cells is classified for analysis according to international conference, research institute, used material, research field, etc. (NEDO)

Preparation of the FY 1998 photovoltaic power system related technology information; 1998 nendo taiyoko hatsuden system kanren gijutsu joho no seibi

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The paper outlined the FY 1998 data preparation project on the photovoltaic power generation. In the field of solar cells and photovoltaic power system, a part of the 13th EUPVSEC data and the 25th IEEEPVSEC data are made database. As to the NEDO related papers, the papers made public in FY 1998 are made database. The number of the object papers totaled 982 including 943 in international conference relation and 39 in NEDO relation. The number of the papers included in 'photovoltaic power generation database (literature)' totaled 4010. Steps of database preparation are collection of the research papers/various reports made public in Japan and overseas, abstract making, preparation of the result data/experimental data, keyword supply, classification/adjustment, and description items. The FY 1998 is the fifth year from the start of this database, and the collected/adjusted technical information on solar cells is classified for analysis according to international conference, research institute, used material, research field, etc. (NEDO)

Report on a feasibility survey of the cold accumulated heat use energy system in Hokkaido; Hokkaido ni okeru reichikunetsu riyo energy system no kanosei chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

A survey was conducted of various systems which use in summer cold heat from the snow stored in winter. A model of the cold accumulated heat system of the type which has a high possibility of the introduction was built to study a possibility of the realization. Types of the model system were selected assuming the utilization of cold heat energy of snow in Sapporo, a typical large city in the cold heavy-snow area. Studies were made on each model of urban type commercial facilities, urban type offices, suburban type shopping center, and suburban type hospitals. For each model, more than one systems were studied according to types and forms of the storage tank, and heat recovery methods. As a result, it was found that cold heat energy of snow can be utilized almost effectively by making an appropriate study of the energy balance like the possible supply of cold heat exceeded the demand in two models of an urban type office building and an suburban type hospital. Further, operating expenses of typical models were roughly calculated. 51 figs., 20 figs.

Joint verification project on environmentally friendly coal utilization systems. Joint verification project on the water-saving coal preparation system; Kankyo chowagata sekitan riyo system kyodo jissho jigyo. Shosuigata sentan system kyodo jissho jigyo

Energy Technology Data Exchange (ETDEWEB)

NONE

1995-09-01

In this verification project, clean technology which should be spread in China was verified and the base structure for its spread was prepared for the purpose of controlling emissions of environmental pollutants associated with the coal utilization in China and of contributing to secure energy acquisition of Japan. As joint verification projects, a general rehabilitation type coal preparation system was installed in the Wangfenggang coal preparation plant, and a central control coal preparation system was installed in the Qingtan coal preparation plant. In the former, a system is verified in which optimum operation, water-saving, high quality, and heightening of efficiency can be obtained by introducing two computing systems for operation control and quality control, various measuring instruments, and analyzers to coal preparation plants where analog operation is conducted helped by Russia and Porland and have problems about quality control. In the latter, a central control system achieving water saving is verified by introducing rapid ash meters, scales, desitometers and computers to coal preparation plants having zigzag or heavy-fluid cyclon and connecting various kinds of information through network. For fiscal 1994, investigation and study were conducted. 51 figs., 9 tabs.

FY 1999 Report on the technical results. Part 1. Development of fuel cell power generation technologies (Research and development of molten carbonate fuel cell power generation system); 1999 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. 1. Yoyu tansan'engata nenryo denchi (hatsuden system no kenknyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

This research and development project is aimed at development of the stacking, cooling and operating technologies for the molten carbonate fuel cell power generation systems, to improve service life and performance of these systems and reduce their cost, based on the results obtained so far by the FY 1993. The R and D efforts are directed to (1) technologies for improving stack performance, (2) development of the plant system by operating a 1,000kW class power generation system, and (3) support technologies, e.g., those for stack materials. The item (1) studies 3 stack types, cross-flow, parallel-flow and internal reforming types, including the electrodes, electrolyte-supporting bases and improvement of performance and service life by separator reforming for the cross-flow and parallel-flow types, and installation and operation of a 200kW class stack system for the internal reforming type, where cells are assembled into the system and tested for their operability, after the auxiliary units are PAC-tested. The item (2) installs a 1,000kW class plant, which is operated, after clearing the requirements set by the related laws, e.g., Electric Utility Industry Law, for starting the operation, to achieve the intended targets. The item (3) includes development of the technologies for stack materials, technologies for handling gases produced by coal gasification, and studies on the total systems. (NEDO)

Report on achievements in fiscal 1999. Development of technology to utilize biological resources such as composite organism systems (development of technology to utilize and produce composite organism systems); 1999 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

It is intended to achieve the following objectives in terms of the technologies to utilize such functions as material production and material decomposition by using composite organism systems: develop a technology to handle the composite organism systems; establish a composite microorganism cultivation control technology, and a composite microorganism system function strengthening technology; develop a technology to separate and cultivate organism groups constituting them, and develop industrial utilization technologies. The fiscal 1999 has discussed developing the elementary technologies for the technology to utilize functions of the composite organism systems on the following research items: 1. a functional material production technology; and 2. comprehensive investigations and researches. In Item 1, development was made on a technology to detect, separate and cultivate microorganisms in soil as the histochemical analytical technology. Development was made on an in situ detection, separation and function analyzing technology for particular composite microorganisms as the function analyzing technology. In the separation and cultivation technology, development was made on a technology to detect, separate and cultivate difficult-to-cultivate microorganisms. In the functional material production technology, development was made on a technology to utilize microbial consortia producing environmentally harmonizing oil-water separating polymers, and a method to execute artificially the gene exchange in the microbial consortia. (NEDO)

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. R and D of the photovoltaic power generation utilization system/periphery technology (R and D of the new solar cell module integrated with construction materials - Investigative study on analysis for commercialization); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Taiyoko hatsuden riyo system, shuhen gijutsu no kenkyu kaihatsu (Shinkenzai ittaigata taiyodenchi mojuru no kenkyu kaihatsu - Jitsuyoka kaiseki ni kansuru chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the purpose of supporting the study for commercialization of the new module integrated with construction materials, survey of the technical trend of the new module integrated with construction materials in Japan and abroad was conducted, and the FY 2000 results were summarized. As to the module material correspondent to construction materials, the results of the survey made in the past three years were summarized, and the subjects to be considered in future were arranged from a viewpoint of disposal/recycle of modules. Concerning the marketability, various policies for the spread of solar cell module that is an immature good were arranged. Survey was also made of the photovoltaic power system using the field test project as a sample, and the following were made clear: The photovoltaic power generation has appeal for environmental consideration and energy conservation; In some cases, the power generation effect was not as much as expected because the information on design/construction is not sufficient. Relating to the evaluation of its effect on the environment, the paper summarized the environmental influence in each of the module methods at each stage of production/utilization/disposal and the basic items for measures to cope with the influence. (NEDO)

FY 2000 report on the results of the development of the environmentally friendly type high efficiency energy utilization system. Part 2. Study of the effective utilization technology of high efficiency energy (Study of the optimum system design technology); 2000 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu seika hokokusho. 2. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-05-01

The paper conducted the development of the environmentally friendly type high efficiency energy utilization system and the R and D of the high efficiency energy effective utilization technology, and the FY 2000 results were summed up. As to the energy transportation/storage technology, the R and D were made on the following: methanol/energy system, non-equilibrium high efficiency methanol decomposition reaction technology, development of multiple functions of catalyst, high efficiency heat pump technology using hydrogen storage alloys, heat-hydrogen recovery/transportation/utilization technology, vacuum insulated heat transport piping system, surfactant used for high density heat transport, high density latent heat transportation technology, etc. Concerning the energy supply/utilization technology, the R and D were made of the heat supply system using high efficient heat pump corresponding to multiple fuels. Relating to the environmental load reduction technology, the energy conserved heat pump system using natural coolant. As to the optimum system design technology, the comprehensive preparation of element technology, etc. (NEDO)

Report on evaluation of research and development of resources recycling/reutilization systems. Phase 2; Shigen saisei riyo gijutsu system no kenkyu kaihatsu (dainiki) ni kansuru hyoka hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1983-08-01

Described herein are the final evaluation results obtained by the 7-year R and D project, beginning in the FY 1976, established by the national project system for developing the techniques for treating urban solid wastes. This project has developed a semi-wet type selective crushing/sorting unit for sorting the wastes, and established the elementary techniques for recycling the wastes into various products, e.g., compost, pulp, combustible gases, aggregates, methane gas, or fuel oil. Two types of total treating systems, in which these elementary techniques are integrated, have been developed; one is to recover materials and the other energy. They can comprehensively, efficiently treat the wastes, adapting themselves to various situations. Pyrolysis which discharges reduced quantities of flue gases is adopted. Waste water is treated, mainly by biological treatment which is supported by the conventional methods, e.g., coagulation and adsorption. The cost estimation results indicate that the total system developed by this project can compare favorably with the conventional incineration system under general conditions, at a capacity of 300 t/d or more, when taking into consideration the secondary effects brought by the recycling/reutilization. This system is commercially feasible, when it meets with local characteristics, e.g., garbage collecting systems, market values of recycled resources, treatment/disposal conditions, and natural and social environments. This project has sufficiently achieved the original objectives. (NEDO)

Report of results of contract research. 'Research on magneto hydrodynamic (MHD) generation'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

Examination was conducted in detail on an MHD generation system by coal combustion, with the results reported. Concerning a gas table calculation program in coal combustion, it was prepared assuming 100% slag removal ratio in the combustor as the primary approximation. A combustor for MHD generation needs to efficiently burn fuel using high temperature pre-heated air as the oxidant, to fully dissociate/electrolytically dissociate seed, and to supply to the generation channel a high speed combustion gas plasma having a high electrical conductivity which is required for MHD generation. This year, an examination was conducted on technological problems in burning coal in an MHD combustor. As for the NOx elimination system in an MHD generation plant, an examination was made if the method studied so far in MHD generation using heavy oil as the fuel is applicable to coal. Also investigated and reviewed were various characteristics, change in physical properties, recovery method, etc., in a mixed state of seed and slag in the case of coal combustion MHD. (NEDO)

FY 1999 Technical research and development for environmentally friendly and highly efficient energy utilization system. Technical research and development for highly efficient and effective energy utilization (Technical research and development for optimum system designs - Part 3); 1999 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu seika hokokusho. 3. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

Research and development program is conducted for the elementary techniques as part of the eco-energy urban project of New Sunshine Project. Described herein are the FY 1999 results for the (techniques for transportation and storage of energy (continued), energy supply and utilization, reducing environmental loads, and designing the optimum systems). The R and D on heat transfer system through the vacuum heat insulation pipes involves fabrication, on a trial basis, the vacuum insulation covers for the vacuum insulation tubes, joints, flanges and valves for the 80A pipes, and the heat loss evaluation test for each item. The R and D on the energy supply and utilization techniques involves the heat transfer systems for a variety of fuels by the highly functional heat pump, and compression/absorption hybrid type heat-utilization system. The hybrid type heat-utilization system simulation results suggest possibility of achieving exergy efficiency of 56% as the development target by use of the new medium. The R and D on the environmental load reduction involves the power-saving type heat pump systems which use a natural coolant. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Development of solar beam power generation and utilization systems and ancillary technologies (Research and development of new building material integrated solar cell modules - investigation and research on analysis of practical application); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu))

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In order to promote the research to put new building material integrated solar cell modules into practical use, the following items were investigated: (1) functions and specifications for harmonizing with buildings, (2) new module materials that can respond to building materials, (3) marketability, (4) standardization of the assessment methods, (5) consistency with relevant legislation and related institutions, (6) effects on environment as building materials, and (7) investigation on technological trends inside and outside the country. In Item (1), the significance of developing the new building material integrated solar cell modules was made clear. In Item (2), the performance requirements on the currently used module materials were put into order. In Item (3), the market size was investigated, and assignments to establishing the market were put into order, such as the distribution and construction institutions, and assistance to the system introduction. In Item (4), standardization and unification of the assessment methods were discussed, and the items to be standardized were extracted. In Item (6), LCA on the currently used modules was performed. In Item (7), participation was made to the second solar beam power generation conference and EUROSUN '98; investigations were made on trends of developing the new building material integrated solar cell modules and how the recycling related legislation is being progressed; and the achievements in the development activities were confirmed, and the assignments were investigated at the new building material integrated solar cell module subcommittee. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use (International cooperation project - collection of information on IEA photovoltaic power generation program); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Research and development, verification, analysis and information exchange have been performed based on the 'Treaty to Execute the Research and Cooperation Program on Photovoltaic Power Generation System'. The IEA/REWP/PVPS activities in fiscal 1999 include the participation to the two executive committee meetings (Valencia and Sydney), and the subcommittee activities. The subcommittee activities are as follows: Task I: information exchange on and proliferation of the photovoltaic power generation systems, Task II: operation performance and design of the photovoltaic power generation systems, Task III: design and operation of the independent type and the island use power plants, Task VII: Building integrated photovoltaic power generation systems, Task VI, Sub-task 5: investigations and researches on possibility for photovoltaic power generation systems utilizing unutilized lands including deserts, and Task IX: technical cooperation to expand photovoltaic power generation system markets. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use (International cooperation project - collection of information on IEA photovoltaic power generation program); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Research and development, verification, analysis and information exchange have been performed based on the 'Treaty to Execute the Research and Cooperation Program on Photovoltaic Power Generation System'. The IEA/REWP/PVPS activities in fiscal 1999 include the participation to the two executive committee meetings (Valencia and Sydney), and the subcommittee activities. The subcommittee activities are as follows: Task I: information exchange on and proliferation of the photovoltaic power generation systems, Task II: operation performance and design of the photovoltaic power generation systems, Task III: design and operation of the independent type and the island use power plants, Task VII: Building integrated photovoltaic power generation systems, Task VI, Sub-task 5: investigations and researches on possibility for photovoltaic power generation systems utilizing unutilized lands including deserts, and Task IX: technical cooperation to expand photovoltaic power generation system markets. (NEDO)

Dynamic programming for reduction of fuel consumption in a photovoltaic/wind/diesel generating system; Doteki keikakuho ni yoru taiyoko/furyoku/diesel hatsuden system no nenryo shohiryo no sakugen

Energy Technology Data Exchange (ETDEWEB)

Ishikawa, K.; Kenmoku, Y.; Sakakibara, T. [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S. [Maizuru National College of Technology, Kyoto (Japan); Kawamoto, T. [Shizuoka University, Shizuoka (Japan)

1997-11-25

Dynamic programming is employed in the study of the operation of the diesel engine in a photovoltaic/wind-force/diesel-engine power generating system, which aims at reduction in the system fuel consumption and at determining an optimum system constitution. The parameters set in this system are the photovoltaic/wind-force supply rate, photovoltaic/wind-force power generation ratio, and battery capacity. An island in Ise Bay, with an annual load power of approximately 1.59-million kWh and mean daily load power of approximately 4336kWh is assumed as the location for the system. Observation data of Ommaezaki Weather Station are utilized for the calculation of the amount of photovoltaic/wind-force power generation. It is found as the result that the fuel consumption of the diesel engine in this system decreases to 82-84% when the natural energy supply rate is 20%. It is also found that the fuel consumption of the system records the minimum at a photovoltaic/wind-force ratio of 60/40, irrespective of the battery capacity or natural energy supply rate, and this ratio is the optimum ratio. 3 refs., 9 figs., 1 tab.

Photovoltaic system at Nagaoka College of Technology. Fabrication of photovoltaic system and development of data logging system; Nagaoka kosen ni okeru taiyoko hatsuden. Setsubi no kochiku to data shuroku system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Arimoto, M; Shirai, I; Togawa, K; Koshoji, H; Otaki, S [Nagaoka College of Technology, Niigata (Japan); Murata, M; Murata, K; Nomura, M [New Energy Corp., Tokyo (Japan)

1997-11-25

Reported in this paper is a photovoltaic power generation facility built in the yard of Nagaoka College of Technology. The purpose of this study is to find out if such a facility operates effectively in a heavy-snow region. A data logging system is also constructed. In a preliminary experiment, a 50W panel was installed, facing southwest at an inclination of 30degC, on the roof of the schoolhouse. A voltmeter, ammeter, and slide rheostat were used to perform necessary measurement. The panel temperature was approximately 50degC, and insolation was estimated at 70mW/cm{sup 2}. The data logging system is comprised of a personal computer, display, printer, etc. Using this system, voltage and current are measured with the load automatically adjusted, and the maximum power point is sought out and logged. In addition, insolation, ambient temperature, and panel temperature are logged. Data is logged every 10th minute and, when a day`s measurement is over, mean values are obtained for every hour and data is built for a power generation profile, all automatically. There is a plan for a wintertime power generation experiment. 3 refs., 5 figs.

Stability analyses of urban water supply systems with wastewater reuse; Toshi haisui no junkan riyo ni yoru mizu kyokyu anteika ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Watanabe, H.; Zhang, S. [Meijo Univ., Nagoya (Japan); Okada, N. [Kyoto Univ., Kyoto (Japan). Disaster Prevention Research Inst.

1995-10-20

Wastewater reuse can be considered as a type of water resource development which is expected to improve the aquatic environment, as well as the stability and reliability of municipal water supply systems. To this extent, wastewater reuse has been taken into account in the planning of water supply systems in several Japanese cities. However, to date the effect of wastewater reuse on water supply system stabilization has not been discussed quantitatively, and the relation between waster water reuse rate and water supply system stability has not been analyzed. In this study, a stochastic model has been presented to evaluate the stability of water supply systems with optimal wastewater reuse rate. Some theoretical analyses and numerical studies were performed, and all of the results have shown that the model is reliable for not only basic studies on water supply system stability, but also for practical use as well. 5 refs., 5 figs., 3 tabs.

Introduction effect of a load levelling system in an electric power system with a photovoltaic and wind system; Taiyoko/furyoku hatsuden wo donyu shita denryoku keito ni okeru fuka heijunka shisutemu no donyu koka

Energy Technology Data Exchange (ETDEWEB)

Kenmoku, Y.; Sakakibara, T. [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S. [Maizuru College of Technology, Kyoto (Japan); Kawamoto, T. [Shizuoka University, Shizuoka (Japan)

1998-12-05

Introduction effect of load levelling system by a battery in an electric power system by a battery in an electric power system with a PV and wind system is investigated. Charge and discharge power of the battery are determined from a load curve and every hour data of PV and wind output. Annual cost of the power system is calculated from the generating power and the capacity of each source via the installed utility capacity and the capacity factor. It is found that (1) the battery system reduces the maximum demand and improves the load factor, (2) the cost effect of the battery system when introducing the PV system is higher than that when introducing the wind system. (author)

Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. International cooperation projects (Collection of information on IEA photovoltaic power generation program); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Items of information were collected on development of technologies to put photovoltaic power generation systems into practical use, the international cooperation projects, and the IEA photovoltaic power generation program. This paper summarizes the achievements in fiscal 1999. In the activities of IEA/REWP/PVPS in the current fiscal year, the 13th and 14th Executive Committee meetings, and the 3rd Executive Conference were held. The Task 1 has performed such activities as ISR, NSR, Newsletters, and opening the Internet homepage. The Task 2 activities included structuring about 260 databases for the operation characteristics of photovoltaic power generation systems, and completing the internal material handbooks on measurement and monitoring. A new work plan was prepared for the Task 3 regarding an independent photovoltaic power generation plant for use in an island. For the building integrated photovoltaic power generation system in the Task 7, survey activities were executed by utilizing expertise conferences on building designs, system technologies, and non-technical impediments. In the feasibility survey and research on large-scale photovoltaic power generation utilizing unused land such as desert for the Task 8, the programs were established. (NEDO)

Wastes power generation introduction manual. Main edition; Haikibutsu hatsuden donyu manual. Honpen

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

A practical and specific working manual was prepared that satisfies the standards and criteria defined in the relevant law such as the Sanitation and Environment Ordinance No. 249, the guideline for generation of dioxins caused by refuse disposal, and that enables the reports evaluating the wastes quantitatively to be submitted to heads of the local governments when persons in charge of planning the introduction of wastes power generation at local governments discuss the wastes power generation systems. Taking general combustible wastes and sewage sludge treatments as the object, this paper details from the economic performance to size of wastes treatment at the priority limit for the power generation facility introduction. The subject power generation systems include the following: the stoker furnace/separation type ash melting furnace power generation system, the fluidized bed/separation type ash melting furnace power generation system, and the direct type gasification melting furnace power generation system, whose establishment of safety, reliability and stability have been verified by full-size system operation record available at the local governments, the gas turbine re-powering composite type power generation system (gas turbine power plants are installed beside the incineration furnaces) that makes high-efficiency power generation possible, and the RDF power generation system (power generation by mixed combustion with general refuses, and power generation using RDF (refuse derived fuel) exclusive combustion). Other important discussion and assessment items include environment and resource utilization performances. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Research and development of solar beam power generation and utilization systems and ancillary technologies (Investigations and researches on meteorological data for optimal design); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (saiteki sekkei no tame no kisho data no chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Observations are being made in Takasaki City, Gunma Prefecture on insolation, putting emphasis on the north side, and insolation by wavelengths to put insolation estimation model on the north side slope into order. This is an attempt to put into order by using the model the data for insolation on slope in all azimuth, taking the meteorological offices all over the country as the object. With regard to monthly average insolation, it was verified that the existing estimation model can be applied to the north slope in the Takasaki area, whereas trial calculations were performed on the average daily cumulative insolation by azimuth and inclination angle in the Takasaki observation points. As a result, it was made clear that the insolation onto north side roofs in Japan is about 70% of that on the south side. With respect to the time cumulative slope insolation, it was made clear that the Perez's cumulative model can be applied to the Takasaki area. Spectral distribution of global and scattered solar radiation was put into order by insolation to have verified that the stronger the global solar radiation intensity, the greater the occupation ratio of shorter waves increases, or in other words, the spectral distribution of the global insolation can be formulated. Sky distribution of radiation is being measured by means of measuring the sky scanning type radiation and luminance distribution. (NEDO)

FY 1998 report on the results of the New Sunshine Project - Development of the commercialization technology of the photovoltaic power system. Verification study of the photovoltaic power system - Research on engineering methods for cost effective PV installation; 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system no jissho kenkyu (tashu secchi koho no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the purpose of promoting installations of PV system and making use of the unused space for which a rise in the PV demand equal to that in houses, building roofs, etc. is expected, examination/research for much newer forms of land installation are proceeded with, and evaluation/verification of reliability/durability are conducted of new installation processes using thin film solar cells, adhesives, etc. In this fiscal year, study of the development/verification of low cost floating pedestal was promoted, and at the same time, examinational study of forms of land installation was made. As to the development of low cost floating pedestal, the module type flexible floating pedestal was developed as a small prototype pedestal and tested for installation in a pool. Survey was also carried out of geometry, mooring systems, materials, design conditions, and existing instances of different floats, and measures were studied for the effective use of the floating system. In relation to reliability and durability evaluation of the new installation process, the verification operation of evaluation facilities for various installation processes was continued, and the power generation capacity was made clear in special forms of installation such as installations on vertical/horizontal surfaces. And the study was made of the large area frameless structure, building use double glass structure, and durability of the adhesive/adhesive tape process of thin film solar cells. (NEDO)

FY 1999 Technical research and development for environmentally friendly and highly efficient energy utilization system. Technical research and development for highly efficient and effective energy utilization (Technical research and development for optimum system designs - Part 1); 1999 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu seika hokokusho. 1 Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

Research and development program is conducted for the elementary techniques as part of the eco-energy urban project of New Sunshine Project. Described herein are the FY 1999 results for the 'techniques for recovery and conversion of unutilized energy'. The R and D on waste heat recovery and conversion for chemical plants designs an internal structure of the 'wetted wall column for shell side as the stripping section' for increasing quantity of heat exchanged inside, and stably operates the bench plant for 100 hours or more. The R and D on thermoelectric power generating systems using low calorie exhaust gases involves development of materials, production of fine particle materials and sinters, and evaluation of their functions, among others. The program for application of the techniques to commercial plants confirms applicability of a 3kg thermoelectric power generating system to automobile coating process. The R and D on systems for thermoelectric recovery of low-temperature waste heat finds cracks on the ceramic plate for the power generating system WATT100, disassembled for repair. (NEDO)

Development of melting system using oxy-coal combustion; Sekitan chokusetsu riyo kinzoku yoyu system gijutsu (NSR) (pilot setsubi unten jokyo ni tsuite)

Energy Technology Data Exchange (ETDEWEB)

Sugiyama, T [Center for Coal Utilization, Japan, Tokyo (Japan); Suwa, T; Kobayashi, N; Iino, K; Yamamoto, Y; Igarashi, H [Nippon Sanso K.K., Tokyo (Japan)

1996-09-01

This metal melting system is a process to efficiently melt and regenerate scraps of aluminum, copper and iron by utilizing high-temperature energy obtained from pulverized coal-oxygen combustion. The process is intended to utilize coal in place of petroleum for reduced fuel cost. Joint studies have been carried out as a subsidy operation of the Agency of Natural Resources and Energy with a schedule of six years starting fiscal 1992. Development tests are being performed using a 5-ton/ch pilot plant facility since fiscal 1995 after having gone through experiments using a 1-ton/ch bench scale furnace. This paper reports the results obtained to date. Using the pilot plant facility, fiscal 1995 has achieved the initial target values, such as thermal efficiency of 55% or higher, and yield of 96% or higher for non-ferrous metals and 94% or higher for iron. The melting behavior in the furnace has improved the thermal efficiency as a whole by retaining the conditions in the preheating step for an extended period of time. The thermal efficiency has been improved better than with the bench furnace as a result of upscaling effect. 9 figs., 3 tabs.

FY 1999 report on the verification test on the system interconnection of the photovoltaic power system in Malaysia; 1999 nendo Malaysia ni okeru taiyo denchi hatsuden system no keito renkei jissho shiken seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

JET and SIRIM Behad, which is the standards and industrial research institute in Malaysia, worked this project together, and installed the Photo Voltaic Generation System (hereinafter refferred to as 'PV system') on the roof of the research building for researching basic conditions in the practical use of the PV system by gathering basic data. The power quality of a supply system necessary for a grid connection of the PV system was researched in the evidential experiment. Moreover, the invasion level and the invasion frequency to the PV system of the thunder surge by the peculiar weather condition in this region were researched. In addition, the requisite for the islanding function for the alternative emergency power supply was investigated. The contents of this project were composed of the three items. (1) research of the power quality in low voltage distribution system. Before and after the PV system is connected with the supply system, basic data concerning the power quality of the voltage, the current, and the frequency fluctuation, etc. in the system was collected. (1)measurement and investigation of the power quality under the current low voltage distribution system. By connecting ad monitoring recorder with a lower voltage distribution system, the current power quality i.e. voltage, current, frequency the fluctuation of voltage and frequency at the regular time were measured and investigated. (2) The power quality in the supply system grid connection of the PV system was measured and investigated. The voltage and the frequency in the case of supply system grid connection of the PV system were compared with the current state of preceding clause 1 and the stability of the power quality was evaluated. Moreover the output power of the solar battery was connected with the measurement device and then the surface temperature of the solar battery module, DC voltage, current and quality of solar radiation were measured. The subject in the practical use of

Guidebook for introducing the photovoltaic power generation; Taiyoko hatsuden donyu guidebook

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-08-01

Recently the number of installation of the photovoltaic power system has been increasing. At present, the estimated introduction amount is 70,000-80,000 kW, which is still big in difference with the targeted introduction value. As seen in the increase in the number of installation, the trend toward the introduction is increasing, but there are left problems on the introduction such as 'the cost is high,' 'the information on the installation has not been well known.' Also in future, it is necessary to further promote the installation, tackling factors to hinder the introduction and making efforts to prepare for the introduction environment. In consideration of such background, in this guidebook, the items required when local governmental organizations, business operators, etc. study the introduction of photovoltaic power system were arranged. Also arranged were the outline and introduction samples of photovoltaic power system, general information on the introduction of the subsidy system, etc., procedures of planning/design, how to concretely introduce the related rules, various procedures to be taken, etc. For reference, the guidebook includes drawings of samples, data on the test field projects which have been carried out so far, data on solar radiation, etc. It is expected that the guidebook will be a help to the understanding of the photovoltaic power generation and will connect to further promotion of the introduction. (NEDO)

Guidebook for introducing the photovoltaic power generation; Taiyoko hatsuden donyu guidebook

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-08-01

Recently the number of installation of the photovoltaic power system has been increasing. At present, the estimated introduction amount is 70,000-80,000 kW, which is still big in difference with the targeted introduction value. As seen in the increase in the number of installation, the trend toward the introduction is increasing, but there are left problems on the introduction such as 'the cost is high,' 'the information on the installation has not been well known.' Also in future, it is necessary to further promote the installation, tackling factors to hinder the introduction and making efforts to prepare for the introduction environment. In consideration of such background, in this guidebook, the items required when local governmental organizations, business operators, etc. study the introduction of photovoltaic power system were arranged. Also arranged were the outline and introduction samples of photovoltaic power system, general information on the introduction of the subsidy system, etc., procedures of planning/design, how to concretely introduce the related rules, various procedures to be taken, etc. For reference, the guidebook includes drawings of samples, data on the test field projects which have been carried out so far, data on solar radiation, etc. It is expected that the guidebook will be a help to the understanding of the photovoltaic power generation and will connect to further promotion of the introduction. (NEDO)

Study of highly efficient power generation system based on chemical-looping combustion; Chemical loop nenshoho ni yoru kokoritsu hatsuden system no kaihatsu ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Ishida, S; Suzuki, T; Yamamoto, M [Tokyo Institute of Technology, Tokyo (Japan). Research Laboratory of Resources Utilization

1997-02-01

This paper describes the research and development of power generation system by means of chemical-looping combustion. For this system, fuel flows in a reduction reactor and air flows in an oxidation reactor. These two flows are separated. As a result, recovery of CO2 without energy consumption, drastic improvement of power generation efficiency, and suppression of NOx emission are expected. To realize the above, two promising candidates, NiCoO2/YSZ and NiO2/NiAl2O4, have been found as recycle solid particles between the both reactors. These have excellent oxidation/reduction cycle characteristics. By these particles as well as the existing particle, NiO/YSZ, practical application of the chemical-looping combustion is realized. Besides LNG, coal and hydrogen were considered as fuels. When using coal or hydrogen, it was found that temperature of the reduction reactor should be increased the same as that of the oxidation reactor. This is a different point from a case using LNG as a fuel. 5 refs., 2 figs.

Fiscal 1981 Sunshine Project research report. Development of hydrothermal power plant. Development of binary cycle power plant (Research on heat cycle and heat medium, materials, and heat medium turbine); 1981 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (netsu cycle oyobi netsubaitai no kenkyu, zairyo no kenkyu narasbini netsubaitai turbine no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

This report summarizes the final fiscal 1981 research result on components of the next 10MW class geothermal binary cycle power plant. In the research on heat cycle and heat medium, R-C318 and R-124 were excellent in output characteristics in a low-temperature zone and high-temperature zone in a hot water temperature range of 120-160 degreesC, respectively, however, at present R-114 was most reasonable from the viewpoint of heat medium price and supply system. In the research on martials, study was made on inlet-attack and stress corrosion of heat exchanger pipes of 18Cr-13Ni-2Mo steel, and combination use of inexpensive materials (carbon steel). As used giving attention to stress corrosion, at present 18Cr-13Ni-2Mo steel was most suitable material, while clad carbon steel was also usable. In the research on heat medium turbine, the 1000-hour durability test result of mechanical seal showed that mechanical seal is best for heat medium turbines. (NEDO)

FY 2000 report on the results of the development of the environmentally friendly type high efficiency energy utilization system. Part 1. Study of the effective utilization technology of high efficiency energy (Study of the optimum system design technology); 2000 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu seika hokokusho. 1. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-05-01

The paper conducted the development of element technology and comprehensive adjustment which are related to the development of the environmentally friendly type high efficiency energy utilization system and the study of the high efficiency energy utilization technology, and the results of FY 2000, the final fiscal year, were summed up. As to the R and D of the exhaust heat reforming/recovery system, the internal heat exchange type distillation tower was developed which has a good energy conservation effect and enables the heat supply outside. Concerning the R and D of the cogeneration system using low calorie exhaust gas, the following were conducted for further improvement of the performance of electrothermic elements: evaluation of the thermoelectric performance using bulk elements, development of new elements and evaluation of the energy balance at the time of combustion, etc. Relating to the R and D of the low temperature exhaust heat utilization cogeneration system, conducted were the development of thermoelectric materials and the fabrication/evaluation study of module. Moreover, WATT20A equipped with the original power generation module developed in this study was fabricated, and the data on the operation at the temperature of 150 degrees C were obtained by WATT-20HT. (NEDO)

Fiscal 1974 Sunshine Project result report. Research on solar energy utilization systems (solar furnace); 1974 nendo taiyo energy riyo system chosa kenkyu. Taiyoro

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-03-01

In fiscal 1974, analysis was made on the concept design of solar furnace hardware, and utilization and use purpose of solar furnaces as high-temperature industrial heat source. Detailed survey was also made on the history of high- temperature solar furnaces. Based on the history of large- scale solar furnaces and the current state of some industries consuming a large amount of thermal energy, wide consideration was made on the applicability of large-scale solar furnaces as heat source in the future. Although various applications of large-scale solar furnaces are expected in the future, their current main applications are production of high-melting point materials, research on high-temperature physical properties, production of silicon, and solar heat power generation. A solar furnace is mainly composed of a parabolic reflector and heliostat plane reflector as optical system. It is necessary for practical industrial use of solar furnaces to study on furnace core design, profitability, installation site, temperature control, and reflector maintenance enough. (NEDO)

Fiscal 1997 survey report. Preparatory survey for a manual on the introduction of high efficiency thermal utilization systems; 1997 nendo chosa hokokusho. Kokoritsu netsu riyo system donyu manual no sakusei choa

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

To cope with the energy issue and global environmental issue, it is necessary to forcibly promote energy conservation. In the light of the present situation that in Japan only 1/3 of the primary energy consumed is effectively used, policies are being prepared for promotion of the introduction of high efficiency thermal utilization systems including `a project for formation of the environmentally friendly type energy community` promoted by NEDO. However, it is hard to say that the introduction is being actively promoted. The cause is that they do not fully understood the present status of high efficiency thermal utilization systems, procedures for introduction, subsidy system, etc. Therefore, a manual was made to present to self governments and enterprisers who are planning to introduce the system. To be concrete, there are the six systems: cogeneration use thermal supply system, unused energy use thermal supply system, heat storage use thermal supply system, waste use thermal supply system, plant surplus energy use thermal supply system, and cascade type thermal supply system. 28 refs., 38 figs., 42 tabs.

Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Research and development of photovoltaic system evaluation technology (Research, development, and survey of crystalline solar cell evaluation system); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu (kesshokei taiyo denchi hyoka system no kenkyu kaihatsu chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In the basic study of ultrahigh-efficiency cells, the technology of ribbon crystal growing is again attracting attention for shortage of Si material supply. The new technology and problems to solve for cost reduction for it are discussed. Concerning the bulk type crystalline Si which is a core material, recent trends are mentioned involving studies of basic substrate properties such as the photoabsorption coefficient and crystal defects for achieving higher efficiency, development of gettering and surface passivation technologies, enhancement of processing speeds, radiation concentration behavior, etc. Newly obtained findings about photodegradation are mentioned, and some remedial measures are described. Recent reports on the application of porous Si to solar cells are compiled. In connection with the development of low-cost quantity-production process technologies, a remarkable progress recently marked by polycrystalline Si solar cells is described. Furthermore, it is stated that new process technologies will be required in the fields of material refining, substrate manufacturing, and cell fabrication. A proposition is presented aiming at developing cell modules compatible with application systems and practicalizing modules that may be integrated with roofing materials. Reference is also made to surveys overseas. (NEDO)

Simulation of PV/FC power hybrid system. Change of system capacity with load form factor; Taiyoko hatsuden nenryo denchi hybrid system no simulation. Fuka keijoritsu ni yoru system yoryo no henka

Energy Technology Data Exchange (ETDEWEB)

Sekiguchi, N.; Tani, T. [Science University of Tokyo, Tokyo (Japan)

1997-11-25

Study is conducted of a photovoltaic/fuel-cell hybrid system whose power storage is a hydrogen storage that uses a hydrogen absorbing alloy. In a simulation in this research, the solar cell conversion efficiency is changed from 15.0% to 21.0% and the fuel cell power conversion efficiency from 40.0% to 50.0%, and the resultant changes in the capacity and operation rate are investigated for each of the devices in the system. The findings follow. A 1.0% change in the solar cell conversion efficiency results in a 4.8kW change in the solar cell capacity and a 1.6-ton change in the hydrogen storage capacity. With a 1.0% change in the fuel cell power conversion efficiency, there is a 14.7kW change in the solar cell capacity and a 5.3-ton change in the hydrogen storage capacity. The fuel cell capacity is not dependent on the solar cell conversion efficiency or fuel cell power conversion efficiency but on the maximum load in each of the load form factors. The rate of occurrence of an operation rate of less than 30% is 54.7% both in DC/DC converter and hydrogen generator, 24.6% in fuel cells, and 16.7% in the DC/DC inverter. 7 refs., 7 figs., 1 tab.

Performance analysis on utilization of sky radiation cooling energy for space cooling. Part 2; Hosha reikyaku riyo reibo system ni kansuru kenkyu. 2

Energy Technology Data Exchange (ETDEWEB)

Marushima, S; Saito, T [Tohoku University, Sendai (Japan)

1996-10-27

Studies have been made about a heat accumulation tank type cooling system making use of radiation cooling that is a kind of natural energy. The daily operating cycle of the cooling system is described below. A heat pump air conditioner performs cooling during the daytime and the exhaust heat is stored in a latent heat accumulation tank; the heat is then used for the bath and tapwater in the evening; at night radiation cooling is utilized to remove the heat remnant in the tank for the solidification of the phase change material (PCM); the solidified PCM serves as the cold heat source for the heat pump air conditioner to perform cooling. The new system decelerates urban area warming because it emits the cooler-generated waste heat not into the atmosphere but into space taking advantage of radiation cooling. Again, the cooler-generated waste heat may be utilized for energy saving and power levelling. For the examination of nighttime radiation cooling characteristics, CaCl2-5H2O and Na2HPO4-12H2O were tested as the PCM. Water was used as the heating medium. In the case of a PCM high in latent heat capacity, some work has to be done for insuring sufficient heat exchange for it by, for instance, rendering the flow rate low. The coefficient of performance of the system discussed here is three times higher than that of the air-cooled type heat pump system. 8 refs., 5 figs., 4 tabs.

Introduction guide book for wind power generation; Furyoku hatsuden donyu guide book

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This paper arranges essential items for introduction of wind power generation to local governments. Natural wind power energy which is free from emission of atmospheric pollutants such as CO2 and probably profitable, is leading regenerative energy among several new energies, and its rapid diffusion is expected. At the end of 1995, a wind power generation facility capacity amounts to 4900MW in the world, 1770MW in USA, 1140MW in Germany, 630MW in Denmark, 550MW in India, and 250MW in the Netherlands. In Japan, its introduction to local governments is in progress with preparation of a purchase system of surplus electric power and a system interconnection guideline. A total facility capacity reached 10MW in 1996, and is scheduled to reach 150MW in fiscal 2010. NEDO`s wind characteristic map of Japan shows many promising areas for power generation. Since these information is not yet well known, the following are summarized: the present state, features of wind condition, power generation systems, application cases, an approach to survey research, construction, maintenance and related laws, and a subsidy system. 31 refs., 48 figs., 40 tabs.

Report of results of contract research. 'Research on magneto hydrodynamic (MHD) generation'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

Examination was conducted in detail on an MHD generation system by coal combustion, with the results reported. Concerning a gas table calculation program in coal combustion, it was prepared assuming 100% slag removal ratio in the combustor as the primary approximation. A combustor for MHD generation needs to efficiently burn fuel using high temperature pre-heated air as the oxidant, to fully dissociate/electrolytically dissociate seed, and to supply to the generation channel a high speed combustion gas plasma having a high electrical conductivity which is required for MHD generation. This year, an examination was conducted on technological problems in burning coal in an MHD combustor. As for the NOx elimination system in an MHD generation plant, an examination was made if the method studied so far in MHD generation using heavy oil as the fuel is applicable to coal. Also investigated and reviewed were various characteristics, change in physical properties, recovery method, etc., in a mixed state of seed and slag in the case of coal combustion MHD. (NEDO)

Survey of consolidation for gas turbine re-powering combined WPP (waste power plant) project; Gas turbine repowering haikibutsu fukugo hatsuden system

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This report describes the survey of gas turbine re-powering combined WPP (or super WPP), which was commercialized by Gunma Prefecture for the first time as an electric power wholesaler in Japan. An outline of the survey is introduced. The system optimization for the commercialization of WPP was studied by considering waste as un-utilized energy. A successful condition and preparation method of the commercialization of a public power plant was also studied, which is a combination of the garbage collection business of a local government and an electric power generation business of a municipal company. For the introduction of the aforementioned system, the problems and supporting methods were studied by making allowance for the profitability of the WPP introduction, because they also need to deliberate it from the economical point of view as electric power companies. Based on the results of foregoing items, commercialization plans, problems encountered from the construction phase through the maintenance and service phase, and the supporting method were arranged. 30 figs., 18 tabs.

Fiscal 1997 development of fuel cell power generation technology. Part 3. Supplementary explanation to R and D of molten carbonate fuel cell and power generation system; 1997 nendo nenryo denchi hatsuden gijutsu kaihatsu hosoku setsumeisho. 3. Yoyu tansan'engata nenryo denchi (hatsuden system no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1988-05-01

A supplementary explanation was compiled for the results of a commissioned project reported in fiscal 1997 (development of fuel cell power generation technology, and R and D (3) of molten carbonate fuel cell and power generation system). The supplementary explanation was given on the development of parallel flow stack, design/manufacturing of 250 kW stacks, design and manufacturing of 250 kW stacks in connection with installation/adjustment. (NEDO)

Fiscal 2000 report on the international joint verification of photovoltaic power generation system. Verification of hybrid system comprising photovoltaic power generation system and micro-hydroelectric power generation systems; 2000 nendo taiyoko hatsuden system kokusai kyodo jissho kaihatsu hokokusho. Taiyoko micro suiryoku hybrid system jissho kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-06-01

Research was conducted in Vietnam for the development of a hybrid system comprising a photovoltaic power generation system and a micro-hydroelectric power generation system. In verification test operation, data measurement had been under way for approximately 18 months since it was started in September 1999. The rate of days on which effective data were obtained throughout this period was 93.4%. Power generated by the micro-hydroelectric power generation system was 19.4kWh/d with so small a capacity factor of 3.2%. The capacity factor of the photovoltaic power generation system was again very small at 4.5% since the amount consumed by the load was as small as 131.0kWh/d. Weather data of solar radiation and precipitation were being collected smoothly. In the study of hybrid system optimization, the effect of inductor generator activation upon the inverter was taken up. In the study of capacity balance optimization between the constituent elements of the hybrid system, methodology was established and verified, and calculations were carried out. (NEDO)

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. International cooperation project (Collection of the information on the IEA photovoltaic power generation program); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai jigyo kyoryoku (IEA taiyoko hatsuden program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Based on 'the Implementing agreement for a research cooperation project on the photovoltaic power system' being promoted by IEA, collection of the information on the photovoltaic power system was made, and the FY 2000 results were summarized. In Task I: Exchange of the information on the photovoltaic power system and the spread, the final report on 'the study on added values of PV system' was made. In Task II: Operational performance and design of the photovoltaic power system and subsystem, specifications for new database were determined, and the existing data were checked/revised/added. In Task III: Design and operation of the stand-alone type and remote island use photovoltaic power plant, survey was conducted of the present situation of technical standards and quality guarantee. In Task 7: Photovoltaic power system integrated with construction materials, work was done for making a book of installation samples of the PV system integrated with construction materials in each country. In Task 8: Investigative study of possibilities of the large-scale photovoltaic power generation using the unused land such as desert, a report making of the secondary survey was started. (NEDO)

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. International cooperation project (Collection of the information on the IEA photovoltaic power generation program); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai jigyo kyoryoku (IEA taiyoko hatsuden program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Based on 'the Implementing agreement for a research cooperation project on the photovoltaic power system' being promoted by IEA, collection of the information on the photovoltaic power system was made, and the FY 2000 results were summarized. In Task I: Exchange of the information on the photovoltaic power system and the spread, the final report on 'the study on added values of PV system' was made. In Task II: Operational performance and design of the photovoltaic power system and subsystem, specifications for new database were determined, and the existing data were checked/revised/added. In Task III: Design and operation of the stand-alone type and remote island use photovoltaic power plant, survey was conducted of the present situation of technical standards and quality guarantee. In Task 7: Photovoltaic power system integrated with construction materials, work was done for making a book of installation samples of the PV system integrated with construction materials in each country. In Task 8: Investigative study of possibilities of the large-scale photovoltaic power generation using the unused land such as desert, a report making of the secondary survey was started. (NEDO)

Subsidized project for development of technology in putting photovoltaic power generation system into practice. Report of international joint demonstrative R and D on photovoltaic power generation system; Taiyoko hatsuden system kokusai kyodo jissho kaihatsu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The following joint researches are in progress utilizing natural conditions and social systems in Nepal, Mongolia, Thailand, Malaysia and Vietnam for the purpose of enhancing environmental adaptability, reliability, etc., of technologies. (1) Nepal; accelerated demonstrative research utilizing highland conditions, (2) Mongolia; demonstrative research of movable type photovoltaic power generation system, (3) Thailand; demonstrative research of photovoltaic generation system for battery-charging stations, (4) Malaysia; accelerated demonstrative research utilizing tropical conditions, and (5) Vietnam; demonstrative research of hybrid system on photovoltaic power generation and micro hydro power generation. The research assets of (1) and (3) whose researches have been finished were provided gratis for the co-researcher countries. In (5), on the basis of the geographical conditions such as annual average quantity of solar radiation, conduit for water-turbine, energy complementing relation, load demand, and degree of installation difficulty, Trang Village in Vietnam was selected, with a system decided on PV:100 kW/MH:25 kW/control system. The MH is an induction generator. The primary pieces of equipment are a generator, a storage battery, an inverter and a system control panel. (NEDO)

FY 1998 survey report. Survey to prepare a data book related to new energy technology development (Trends on the waste power generation, solar heat utilization, geothermal power generation, clean energy cars, coal liquefaction/coal gasification and new energy); 1998 nendo chosa hokokusho. Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy, jidosha, sekitan ekika gas ka oyobi shin energy kanren doko)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Together with the progress of technology development, policies for the introduction/promotion of new energy technology are being developed such as promotion of the commercialization development, revision of the law system, and expansion of the subsidy system for promotion. To push the introduction/promotion forward more effectively, it is necessary to arrange various kinds of data comprehensively/systematically and to make them the basic data for contribution to the spread/education. As to the six fields of the waste power generation, solar heat utilization, geothermal power generation, clean energy cars, coal liquefaction, and coal gasification of the technology fields of new energy, this report collected/arranged the data made public recently in terms mainly of the following: trends of the introduction in Japan and abroad, policy/law/subsidy system in Japan and abroad, cost, system outline, basic terms, a list of the main affiliated companies and groups, and the nation's outlook for energy introduction and policies of each new energy technology in Japan and abroad, and the trends. Moreover, characteristics by field were described of the state of the commercialization/introduction of new energy technology. (NEDO)

Report on the achievements in fiscal 1999 of research and development of a femto-second technology. Research and developing of a electric power generation facility monitoring system utilizing high-luminance X-ray pulses; 1999 nendo femto byo technology no kenkyu kaihatsu seika hokokusho. Kokido X sen riyo hatsuden shisetsu monitoring system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Researches have been made with an objective to generate femto-second high-luminance X-ray pulses by using interactions between femto-second light pulses and high-density electron ray pulses, and to develop a technology to use the above pulses to measure objects moving at high speeds. This paper reports the achievements in fiscal 1999. In research and development of the ultra short light/electron ray pulse generating and controlling technology, totally solid laser was used as an excitation source for a mode synchronous laser transmitter. A high-accuracy moving stage driven by piezo elements and motor was used to actively control the resonator length by using the RF reference signals, wherein time fluctuation was reduced down to 100 fs level. Design and fabrication were performed on an electron ray accelerator and an electron ray transporter of the electron ray source system for Compton X-ray. Electron energy of 12 MeV and electric charge of 1 nC were achieved in an electron beam acceleration test. In the research and development of a femto-second high-luminance X-ray pulse generating technology, design and fabrication were carried out on a Compton collision chamber that can generate X-ray pulses with high luminance. (NEDO)

Generation characteristics of photovoltaic power generation equipment at TEPCO R and D center; Gijutsu kaihatsu center taiyoko hatsuden setsubi no hatsuden tokusei

Energy Technology Data Exchange (ETDEWEB)

Amano, K; Natori, K [Tokyo Electric Power Co. Inc., Tokyo (Japan)

1997-11-25

Solar battery arrays are installed at different tilt angles for actual measurement in an experiment conducted by TEPCO (Tokyo Electric Power Company, Inc.) Research and Development Center for the examination of their power generation characteristics. Arrays of polycrystalline silicon solar battery modules are positioned facing a direction +7 degrees swung from the south on the Center rooftop and verandah, and they are installed at tilt angles of 0, 30, 60, and 90 degrees. An analysis of system characteristics is conducted, and findings mentioned below are obtained. In fiscal 1996, the highest utilization factor of a yearly average of 11.3% is attained with the ones tilted at 30 degrees. As for the utilization factors at the other angles, they are 10.2% at 60 degrees, 8.8% at 0 degrees, and 8.0% at 90 degrees. The integrated design coefficient remains approximately constant irrespective of the different tilt angles of 0, 30, and 60 degrees. The overall design coefficient of the 90 degree-tilted array installed on the verandah is found to be 0.75, which is higher than those exhibited by the others. Appropriate routes of wirings for modules should be worked out to avoid the ill effect of the shadows of steel towers. 2 refs., 11 figs.

Report on achievement in developing fuel cell power generation technology in fiscal 1998. Research and development of molten carbonate fuel cell power generation system (Summary of the research result); 1998 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. Yoyu tansan'engata nenryo denchi hatsuden system no kenkyu kaihatsu (kenkyu seika no yoyaku)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

Based on the achievement made in the second term plan of researching and developing a molten carbonate fuel cell power generation system, attempts are made on extending the service life, improving the performance, and reducing the cost. At the same time, lamination, cooling and operation technologies will be established, and a 1000-kW class power generation plant will be developed. Realization of use of coal gasified fuel in the future is aimed. Stack materials and their processing technologies will be developed, the cell durability will be improved, and the total system research will be carried out. This paper describes the achievements made during fiscal 1998. A process and control (PAC) test was performed on the fuel system facilities in the 1000-kW class generation plant, and its result was analyzed. The fuel system facilities had the test program using simulated fuel cells set from the system side digested nearly completely, verifying that actions can be taken for operation using actual fuel cells to be executed in fiscal 1999. Analysis of the test result presented raw material conversion rate of 96.6% or higher, generation of hydrogen plus CO of 740 m{sup 3} N/h, and NOx generation of 10 ppm or less. Stable combustion of a low calorie gas (500 kcal/m{sup 3} N) was achieved, completing all of the research objectives planned for fiscal 1998. (NEDO)

Industry brief letter; Oman LNG, Indo no hatsuden mukeni kyokyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-02-01

Oman LNG (OLNG), invested by Mitui Bussan, Mitsubishi Trading and Itochu Trading, concluded a supply contract of liquefied natural gas with a private power supply enterprise of India. Contract period is 20 years, and supplies 1.6 million ton LNG per year from the fourth quarter of 2001. This is the third contract case following to Korea Gas of Korea and Osaka Gas of Japan. OLNG will establish annual production 6.6 million system by the end of 1999. With this contract, almost all LNG production will be ensured to be sold by long term contracts. (translated by NEDO)

Development in fiscal 1999 of technology to put photovoltaic power generation system into practical use. Management of research and development (System development committee working group); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri (system kaihatsu bukai)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

This paper reports activities carried out in fiscal 1999 by the system development committee working group, a subordinate organization of the committee for development of the photovoltaic power generation technology. The items of implementation laid with emphasis in the current fiscal year included deliberations on the research achievements of the projects completed in fiscal 1999, on the research achievements of the new projects during fiscal 1999, and on pre-final evaluation of the development of a technology to put photovoltaic power generation system into practical use. The themes on the progresses in fiscal 1999 reported in March 2000 consisted of the followings: research and development of a system evaluation technology, investigation and research on supply capability evaluation on the photovoltaic power generation system, researches on peripheral devices for AC modules, investigation and research on electric safety of the photovoltaic power generation system, investigation and research on long-term reliability of inverters, investigation and research on meteorological data for optimal design, investigation and research on evaluation of the photovoltaic power generation, research on a photovoltaic power generating multi-hybrid system, research on a high-density linkage technology, and demonstrative research on a solar beam micro-hydraulic hybrid system. (NEDO)

Study of installation of PV systems at campus; Campus ni okeru taiyoko hatsuden donyu ni kansuru kenkyu (taiyo denchi nomi wo secchishita baai no yobi kento)

Energy Technology Data Exchange (ETDEWEB)

Tsuboi, N.; Tanaka, H.; Okumiya, M. [Nagoya University, Nagoya (Japan)

1997-11-25

In terms of energy consumption, environmentality and economical efficiency in the case of installing the photovoltaic power system on the rooftop of the university campus, a comparative study was conducted with other power generation systems. As objects to be comparatively studied, selected were the all-electric type centralized space heating/cooling system, cogeneration system, nighttime heat storage system and centralized system with solar cells installed. The panel area of the PV system is 10,000m{sup 2} on the rooftop and 7,000{sup 2} on the outer wall. About data on solar radiation, average values obtained in Nagoya were used. Assessment was made in terms of energy consumption amount at the time of operation, system COP, emission amounts of CO2, NOx and SOx at the time of manufacturing and operation, initial cost, running cost, etc. As a result of the study, an effect of reducing global warming gas was admitted in the PV system. However, the initial cost of the solar cell panel was high, and the life cycle cost of the PV system was lower than other systems. 1 ref., 7 figs., 3 tabs.

Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research and development of novel type solar cell module integratable with building materials - Novel multilayer structure module); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu - shinfukuso kozo module)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The project aims to develop solar cell modules of a novel multilayer structure, based on the resin filling structure, hollow structure, and the laminate structure, and integratable with building materials. In fiscal 1999, for the development of cells and submodule structures, cells and submodules were fabricated which were usable with various specimens. In the case of design oriented cells, electrode structures and linkage methods were improved for the enhancement of power generation performance, and a hollow structure and a laminate structure were fabricated. As for the 4m{sup 2}-large module (laminate structure), a specimen with dummy cells arranged along its periphery was fabricated. For cost reduction, a study was made about a module (laminate structure) integrated with an ALC (autoclaved lightweight concrete) board, and the kind of surface glass, cell arrangement, and back sheet types and their respective designs were evaluated. It was then concluded that the module was fit for practical application. The module was then checked for wind endurance in a wind endurance test, for electric characteristics, and for flame inhibition capability in a fire prevention/resistance test. (NEDO)

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. Summary. R and D of the photovoltaic power generation utilization system/periphery technology (R and D on the improvement of reliability of photovoltaic power generation - Investigative study of long-term reliability of inverter - Separate volume: Data on the life evaluation test); 2000 nendo New sunshine keikaku seika hokokusho(Sokatsu ban). Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (Taiyokohatsuden no shinraisei kojo ni kansuru kenkyu kaihatsu - Inbata no choki shinraisei no chosa kenkyu - Bessatsu : Jumyo hyoka shiken datashu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the purpose of establishing a life evaluation method for power conditioner of about several kilowatts for general housing use, the acceleration test was made, and the data were summarized for maintenance of power quality, cooperation with the protection system at power system, insuring of safety of personnel/facilities, etc. As to the acceleration method, by paying attention to heat deterioration of thermal plasticity materials being used for power conditioner and by using the acceleration method using the 10-degree C half law by the Arrhenius law, temperature and humidity were set at 40 degrees C and 36%, respectively. The operation hour and stopping time were fixed at 3.5 hours and 4.5 hours, respectively. The life evaluation measurement by the acceleration test was composed of the continuous evaluation measurement with the aim of early finding the degradation of performance, anomaly, etc. of power conditioner and of the evaluation measurement at specified intervals with the aim of precisely measuring the state of degradation of power conditioner. As a result of the continuous evaluation measurement, the paper reported the data on the rise in temperature inside the power conditioner during the acceleration test and the change in electric characteristics of input/output. (NEDO)

Study on a constant-tip-speed-ratio operation of wind power generation system. Effect of load control system on dynamic behavior; Furyoku hatsuden system no hensoku seigyo unten ni kansuru kenkyu. Fuka seigyokei ga system no rikigakuteki kyodo ni oyobosu eikyo

Energy Technology Data Exchange (ETDEWEB)

Wakui, T.; Yamaguchi, K. [Waseda University, Tokyo (Japan); Tanzawa, Y. [Nippon Institute of Technology, Saitama (Japan); Hashizume, T.; Ota, E. [Waseda University, Tokyo (Japan). School of Science and Engineering

1998-06-01

The effect that the set data of the load control system in a wind power generation system exerts on the dynamic behavior of a system was investigated. The wind power generation system consists of a hybrid wind turbine with combined Darrieus and Savonius rotors, load with a generator and battery in the center, and a controller. A constant-tip-speed ratio operation that holds the circumferential speed ratio in which the power coefficient is maximized irrespective of the change in wind velocity was used to extract and convert the wind energy more effectively. In a high-wind velocity area, the system is operated at a fixed speed, and the increase in rotation is suppressed to protect the wing strength. In a large system, the response characteristics are only slightly improved by the limited load operation range and influenced rotor inertial. Power cannot be fully extracted even if the control system is changed in setting, and the applicability to the wind situation remains low. During the actual operation, the adjustment value of the control system should be set so that the output operation is satisfactorily possible in the specified load operation range, that is, the change in the instantaneous value of an effective power coefficient indicates almost flat gain characteristics in frequency characteristics. 14 refs., 10 figs., 2 tabs.

Fiscal 2000 project of inviting proposals for international joint research - invitation for international proposal (Power generation No.4). Achievement report on effective utilization of waste heat energy; 2000 nendo kokusai kyodo kenkyu teian kobo jigyo - kokusai teian kobo (hatsuden No.4). Hainetsu energy no yuko riyo seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Endeavors are exerted to develop a medium temperature thermoelectric module technology, which is one of energy/environment related technologies, in cooperation with Russia. The ultimate goal of this technology is to develop a hybrid power generation system which utilizes waste heat. Activities are conducted in three fields involving (1) the basic concept and design of thermoelectric power generation systems, (2) development of thermoelectric power generation systems, and (3) others, including the goal and self-evaluation. Summarized in field (2) are the overall activity plan, development of medium temperature thermoelectric power generation modules, development of cascade type hybrid modules, development of thermoelectric power generation systems, results of thermoelectric power generation system evaluation tests, and technical problems. Carried out for the development of thermoelectric power generation systems are the development of a medium temperature p-type thermoelectric power generation material Mn-Si, development of a method for synthesizing the Mn-Si material, and the development of a medium temperature n-type thermoelectric power generation material Co-Sb. Various methods are studied relative to the fabrication of electrodes, and the thermal spraying method is employed for a success in the development of a medium temperature thermoelectric power generation module of Mn-Si(p)/Co-Sb(n) for the first time in the world. (NEDO)

Report on achievements in proliferation project to assist introduction of environment harmonizing type coal utilization system in fiscal 1998. Joint demonstration project for CMG recovery and utilization system in fiscal 1998 (recovering facilities); Kankyo chowagata sekitan riyo system donyu shien nado fukyu taisaku jigyo. 1998 nendo CMG kaishu riyo system kyodo system kyodo jissho jigyo (kaishu setsubi)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-09-01

This paper describes the achievements of the discussions in fiscal 1998 on the recovering system for coal bed methane gas to be supplied to the city of Tieling in China. The paper puts on record the associated documents, and figures and drawings. The associated documents appearing in the paper include the table for explosion-proof examination on the recovering devices, a parts list for the RK-3A type test drilling machine, and its operation manual. Specifications for the test drilling machine (including those for the sealing pumps), specifications for the mouth facilities, and device lists are shown. Test drilling device arrangement drawings and standard drilling record table are also described. Central blower specifications, a back-fire preventing device, a device to prevent well exterior from freezing, and a summarized drawing for drain remover for gas induction for the Daixing mine are explained. The schemes for induction and sealing, specifications and procedures for observation devices are shown. Specifications for sealing materials and the centralized monitoring facilities are also touched on. The safety measures, measures taken for power failure in the centralized monitoring facilities, and the control organization are described. Test drilling cost simulation and environment assessing methods are also described. The figures and drawings presented include the topographic map, Daixing mine cavity drawing, pipeline network, and chart for representative test drilling columns near the coal beds were also presented. (NEDO)

Report on achievement in developing fuel cell power generation technology in fiscal 1998. Research and development of molten carbonate fuel cell power generation system (Test of the research result report); 1998 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. Yoyu tansan'engata nenryo denchi hatsuden system no kenkyu kaihatsu (kenkyu seika no honbun)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

This paper summarizes the text of the research result report in the separate volume II-1 from among the fiscal 1998 report on the achievement made on researching and developing a molten carbonate fuel cell (MCFC) power generation system. For the AC-DC type system whose high performance and large capacity stacks are being developed, detail designs were made on 250-kW class stack module assembly and installation procedure. At the same time, processing and forming were continued on such main components as electrodes, electrolyte plates and separators. The cells were assembled as modules, sintered, installed and adjusted. Aids were given by the process and control (PAC) test on devices and piping of the fuel cell system block. Cell life extension is also under study. For the parallel flow type stack, two 250-kW stacks were fabricated, and an overall adjustment test was begun thereon in March. For the reformer, an internal reforming system was developed for the 200-kW class system, whose adjustment test is scheduled for April 1999. Capacity increase is also under discussion. For practical use of MCFC, stack life of 40,000 hours is said required. The current status is at the level of exceeding 10,000 hours, but the necessity is seen in suppressing voltage drop associated with lapse of time. (NEDO)

Development of deepsea geomagnetic and electric fields observation system using submarine cables. 2; Kaitei cable riyo no shinkai chijiki denba kansoku station no kaihatsu. 2

Energy Technology Data Exchange (ETDEWEB)

Miyazaki, T; Nakatsuka, T; Murakami, Y [Geological Survey of Japan, Tsukuba (Japan); Onishi, N

1997-10-22

VENUS Project aims at constructing a deepsea geomagnetic and electric fields observation station to cover the Ryukyu Trench, Philippine Sea, and Mariana Trough, by the reuse of the Okinawa-Guam commercial marine communication cable now out of service. This report deals with a scenario for the development of a geomagnetic/electric observation system as a part of the planned long-term sea bottom observation effort and the installation of equipment therefor. The first stage consists of the towing of a frame mounted with the system equipment and a cable to connect to a data transmission relay and their placement at a specified location on the sea bottom. The cable is extended toward the relay and its leading end is allowed to land near the relay. Next, a manned submersible vessel is used to connect the cable end to the relay, the submersible vessel is next driven along the connection cable toward the system equipment for the determination of the position and orientation of the system equipment, and then electrodes are arrayed at an interval of 20m into an L-letter configuration. The system will be established in March, 1998, on the 4200m-deep continental slope of the Ryukyu Trench approximately 90km southeast of Okinawa. 2 figs., 1 tab.

Collection of outlines of Sunshine Program achievement reports for fiscal 1989. Solar energy (Light utilizing technology and heat utilizing technology); 1989 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1990-04-01

Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the research on the practical application of new-type solar cells; research on the practical application of amorphous solar cells; research and development of solar cell evaluation systems; research and development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and research and development of photothermal hybrid photovoltaic power systems. Collected concerning heat application technologies are the research and development of solar thermal energy systems; development of practical application technologies for solar systems for industrial use etc.; and cooperative projects between Japan and Australia etc. on solar energy technologies. (NEDO)

Collection of outlines of Sunshine Program achievement reports for fiscal 1988. Solar energy (Light utilizing technology and heat utilizing technology); 1988 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1989-04-01

Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the experiment, refining, and verification of low-cost silicon; experiment, fabrication, and verification of solar panels; research on the practical application of high-efficiency crystal-based solar cells; research and development of amorphous solar cells; research and development of solar cell evaluation systems; development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and development of photothermal hybrid type photovoltaic power systems. Collected concerning heat-utilizing technologies are the research and development of solar thermal electric power generation systems; research and development of solar air-conditioners and hot water supply systems; and development of practical application technologies for industrial solar systems. Collected also are international cooperative projects on solar energy technologies. (NEDO)

Space photovoltaic power generation. Uchu taiyo hatsuden ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Kudo, I [Electrotechnical Laboratory, Tsukuba (Japan)

1993-07-20

Introduction is made of space photovoltaic power generation which is the ultimate clean energy source. This is a system to obtain electric energy from the solar cells placed on a geostatic orbit and transmit the power onto the earth by microwave. The US formulates a plan of placing 60[times]5GW power generation satellites to obtain 300GW power on the earth in 2000. As for the scale of space structure, the array of solar cells is dimensionally 10km[times]5km and the power transmitting antenna is 1km in diameter. The electric energy is amplified to microwave and power-transmitted by wireless onto the earth. The ground rectenna which receives it is dimensionally 10km[times]13km. The biggest difficulty consists in transportation of construction materials onto the orbit. In Japan, activity comprises three matters, which are research committee organized three years ago by the Agency of Industrial Science and technology, 10MW class model conceptually designed by the Institute of Space and Astronautical Science, and experiment conducted by Kyoto University on the power transmission by wireless. Pertaining to the research on the space power generation, the following two points are judged still unclarified: Reason for which the electric power companies did not apply the power transmission by wireless regarded as high in transmission efficiency. Influence of the microwave on the ionosphere and biosystem. 7 refs., 4 figs.

FY 1999 Technical research and development for environmentally friendly and highly efficient energy utilization system. Technical research and development for highly efficient and effective energy utilization (Technical research and development for optimum system designs - Part 2); 1999 nendo kankyo chowagata kokoritsu energy riyo system kaihatsu seika hokokusho. 2. Kokoritsu energy yuko riyo gijutsu no kenkyu (saiteki system sekkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

Research and development program is conducted for the elementary techniques as part of the eco-energy urban project of New Sunshine Project. Described herein are the FY 1999 results for the (techniques for transportation and storage of energy). The R and D on methanol energy systems involves the R and D on decomposition and synthesis catalyst of methanol and methyl formate for the waste heat sources of relatively low temperature. The R and D on high-efficiency techniques using hydrogen-occluding alloys involves development of heat exchangers of low sensible heat ratio, fabrication of double-effect type MH heat pump cycle devices, and demonstration tests for the system operation. It is found that the heat output of the hydrogen-occluding alloy for high temperature use is 0.18kW/kg at 90 degrees C, and that the alloy can be massively produced. A thermal utilization efficiency COP of 0.68 is obtained for the double-effect type MH heat pump cycles. The R and D on the heat-hydrogen recovery, transportation and utilization techniques involves designs and fabrication on a trial basis of a sensible heat recovery unit. (NEDO)

Study on an optimum ratio of PV output energy to WG output energy in PV/WG hybrid system; Taiyoko/furyoku hybrid hatsuden system no saiteki yoryohi ni kansuru kento

Energy Technology Data Exchange (ETDEWEB)

Nishikawa, S [Kandenko Co. Ltd., Tokyo (Japan)

1996-10-27

A photovoltaic power (PV) and wind generated power (WG) are an unlimited clean energy source, yet their output is unstable depending on the fluctuation of weather conditions such as solar radiation and wind velocity. Consequently, a large-scale power storage equipment is necessitated leading to a high cost especially in an independent system. As a solution, a method is available in which PV and WG are combined so that the effect may be utilized for stabilizing the output of a system as a whole, at a site where a fluctuation pattern is different between photovoltaic energy and wind energy. In building a hybrid system by PV and WG, sites with such supplementary effect existing were selected from the viewpoint of stabilizing the fluctuation of the power generation in the long run; and then, an examination was made on the optimum PV capacity ratio (%Ppo) in each site. As a result, it revealed that the %Ppo had great bearing on a ratio of PV energy fluctuation to WG, which was converted to a numerical formula. A comparatively simple examination by means of meteorological data also indicated that the share ratio was possibly optimized between the quantities of PV and WG energy. 4 refs., 2 figs., 2 tabs.

WE-NET substask 3. Conceptual design of total system (Safety measures and evaluation techniques); 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 3. Zentai system gainen sekkei anzen taisaku hyoka gijutsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Under the hydrogen-utilizing international clean energy system technology project WE-NET (World Energy NET Work) in fiscal 1998, researches and studies were conducted to clearly define safety designs and to improve on accident-and-safety analyses. In relation with system safety design, investigations continued into Japanese and foreign manuals and regulations about the handling of hydrogen and its peripherals, and safe design guidelines (draft) were compiled. Anomalies and accidents supposed to be typical of each of the systems concerned were investigated. As for accident-and-safety analyses, incorporation of a turbulence model was studied in relation to models representing the leak, evaporation, and diffusion of liquid hydrogen, and improvement was achieved when the scope of evaluation was enlarged concerning the hydrogen detonation model. The integration of the two models was discussed for the due evaluation of a series of processes of liquid hydrogen leak, evaporation, diffusion, and detonation. Calculation was performed for two assumed accidents, and the results were found to justify the integration of the two models. (NEDO)

New Sunshine Program for Fiscal 2000. International cooperative project for developing photovoltaic power system practicalization technology (General edition); 2000 nendo New sunshine keikaku. Taiyoko hatsuden system jitsuyoka gijustu kaihatsu kokusai kyoryoku jigyo (Sogoban)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Fiscal 2000 international cooperation for the research, development, and popularization of photovoltaic power systems is compiled. In carrying out international cooperation relating to the photovoltaic power generation program of IEA (International Energy Agency), etc., officers were sent to the 15th and 16th executive committee meetings, where they deliberated on plan formulation and budget making. They also participated in the activities of Task 1: Exchange and dissemination of information on photovoltaic power systems, Task 2: Operational performance and design of photovoltaic power systems and subsystems, Task 3: Use of photovoltaic power systems in stand-alone and island applications, Task 5: Design and grid interconnection of building integrated and other dispersed photovoltaic systems, Task 7: Photovoltaic power systems in the built environment, Task 8: Study on very large scale photovoltaic power generation systems in deserts and other unexploited regions, and Task 9: Technical co-operation for photovoltaic market deployment. A discussion was made on the holding of a 4th IEA photovoltaic power system executive conference. In addition, Japan-Australia and Japan-Oman bilateral cooperative projects were implemented. (NEDO)

Fiscal 1995 survey report on the environmentally friendly type coal utilization system joint demonstration project. Water-saving coal preparation system joint demonstration project; Kankyo chowagata sekitan riyo system kyodo jissho jigyo. Shosuigata sentan system kyodo jissho jigyo

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

This project makes demonstration of clean coal technology (CCT) in China and preparation for the base of its spread, controlled environmental pollution due to the coal use by the countries concerned, and contributes to stably secure energy of Japan. The paper made analog operation in the 1960s-1970s, supported by Russia and Poland, introduced two computer systems for operational control and quality control, densimeter, level meter, flow meter and analyzer to coal preparation plants having problems on productivity and quality control, made the optimum operational diagnosis for the plants, and at the same time, demonstrated the comprehensive rehabilitation type system by which water saving, high quality and high effectiveness are obtained. Various types of sensors such as rapid ash meter, scale and densitometer and computers are introduced to coal preparation plants which were recently constructed in China, have jig or heavy liquid cyclone as main preparation equipment and conducts operational control. There, the central control system was demonstrated in which various information collected in the central operation room and in-site equipment is combined by network for high-grade data processing and water saving is achieved. 50 figs., 11 tabs.

Results of photovoltaic power generation system operation in Tokyo Electric Power Company; Tokyo Denryoku ni okeru taiyoko hatsuden setsubi no unten jisseki ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Fukuda, H; Itokawa, K [Tokyo Electric Power Co. Inc., Tokyo (Japan)

1996-10-27

A report was made on the measurement of data and the results of the analysis at 14 sites of photovoltaic power generation facilities operated under system interconnection by Tokyo Electric Power Company. This type of system is provided in 40 sites as of the end of fiscal 1995, generating 479kw. The items measured were the generated electric energy at all 14 sites, and the quantity of solar radiation, outside air temperature, panel temperature, etc., at limited sites; and the capacity of each equipment, azimuth and inclination of the panel were also recorded simultaneously. Hourly values were used for the analysis. Five minute values were utilized, however, in the examination of the cause of lowered output and in the situation recognition of the influence of the shade or the change of weather. The utilization factor of the facilities was in the average 10.8% in fiscal 1994 and 10.7% in fiscal 1995. The factor decreased slightly unless the panel azimuth faced due south. The utilization factor at the panel inclination of 35 degrees and 45 degrees showed both 10.4% through the year making no difference. The system seemed to show no overwhelming possibilities in coping with electric power demand. The reason was that deviation existed for 2 hours or so in the peak and that reliability was low as basic power facilities. However, it was determined that the system be continuously examined in future. 9 figs., 1 tab.

Preparation of meteorological data (METPV) which is useful to simulate output from PV systems; Taiyoko hatsuden system no simulation yo data METPV no seibi

Energy Technology Data Exchange (ETDEWEB)

Itagaki, A; Iida, H [Japan Weather Association, Tokyo (Japan)

1996-10-27

Studies are under way for the nation-wide buildup of a network of METPV data, new standard meteorological data resembling the HASP data, for the time-based simulation of the output of photovoltaic power generation systems. There is a method of preparing hourly data covering a long period of time for computer processing for the determination of the average hourly power generation level, which, however, will be unrealistic because of the enormity of calculation work involved. Hence: the concept of standardized meteorological data, which involves the specification of typical years after examining the data covering a long period and the preparation of the data of the years for computer processing. In the METPV setup, three types of data are prepared: data for the year of the average insolation, data for the year of insufficient insolation, and data for the year of excess insolation. Next, for each of the twelve months, the year of the average insolation is found. When the twelve pieces of data for the twelve months (of different years) are combined, an artificially constructed year results, with each of the twelve months having the average insolation. A technique has been developed for smoothing the discontinuity between the months. Forty observation spots were built in fiscal 1995, and 150 spots will have been prepared across the country by the end of fiscal 1996. 6 refs., 4 figs.

Fiscal 1974 Sunshine Project result report. R and D on solar heat power generation system (R and D on curved reflector light collection system); 1974 nendo taiyonetsu hatsuden system no kenkyu kaihatsu seika hokokusho. kyokumen shuko hoshiki system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-05-30

This report composed of 6 parts summarizes the fiscal 1974 Sunshine Project research result on the solar heat power generation system with a curved reflector light collection system. Part 1 outlines the research target, research result and research system. Part 2 describes each research item in detail. This part on system and hardware researches is composed of (1) study on 1,000kW system, (2) development of plane/parabolic reflector light collection equipment, (3) development of parabolic reflector light collection equipment, (4) development of selective transparent membrane and selective absorption surface, and (5) study on heat storage equipment and heat exchange equipment. Part 3 describes the future R and D plan for every year focusing the fiscal 1975 R and D plan. Part 4 describes various cooperative activities with other research groups such as various committees related to the Sunshine Project, universities and Electrotechnical Laboratory. Part 5 describes several patents produced during this R and D. Part 6 summarizes the results on this R and D. (NEDO)

Fiscal 1974 Sunshine Project result report. R and D on solar heat power generation system (R and D on tower solar collection system); 1974 nendo taiyonetsu hatsuden system no kenkyu kaihatsu seika hokokusho. Tower shuko hoshiki system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-05-29

This report summarizes the fiscal 1974 research result on the solar heat power generation system with a tower light collection system. This system receives solar radiation energy by reflector group, and concentrates solar energy reflected by each reflector on the heat absorber mounted on the top of the tower. A ratio of the whole reflector group area to the receiving area of the heat absorber is called a concentration factor. The heat absorber converts concentrated dense radiation energy to thermal energy, and transfers heated thermal medium to the bottom of the tower to supply solar heat to a thermal plant after appropriate treatment. Based on the above basic idea, study was made on the total system and each subsystem, and some problems on component equipment and materials were extracted. After solving these problems and improving the whole system accuracy, these results are put to practical use for design and operation of an actual pilot plant. The main research items are as follows: feasibility study, simulation, element study, preparation of a 10kWT test equipment, and planning of a 1,000kW class pilot plant. (NEDO)

Fiscal 1976 Sunshine Project result report. R and D on solar heat power generation system (R and D on curved reflector light collection system); 1976 nendo taiyonetsu hatsuden system no kenkyu kaihatsu seika hokokusho. Kyokumen shuko hoshiki system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-01

As a part of Sunshine Project, study was made on the solar heat power generation system using a solar collection system composed of plane and curved reflectors. In fiscal 1976, study was made on plant characteristics and plant operation by using system simulation program, and the concept design of the system was promoted. The reflectance of the plane reflector was improved up to 0.92 by remodeling the prototype collector fabricated in last fiscal year, and the prototype test facility of full-scale reflectors for 1,000kW solar power plant was prepared to obtain design data for large reflectors. The prototype heat collection loop control equipment which was prepared to simulate control of plant operation conditions according to solar radiation fluctuation, succeeded in prediction of solar radiation fluctuation within nearly 30min. New study was also made on a system using both accumulator and molten salt heat storage equipment, and each proper capacity for power plants was determined. In addition, high-temperature vapor generation for 2 hours was achieved by the prototype heat storage equipment using KCl-LiCl molten salt. (NEDO)

FY 2000 research cooperation project on the research cooperation for the commercialization of the regional adaptation type photovoltaic power generation system, etc. Research cooperation for the commercialization of the methane fermentation gas fuel cell power generation system; 2000 nendo kenkyu kyoryoku jigyo. Chiiki tekigogata taiyoko hatsuden system to no jitsuyoka ni kansuru kenkyu kyoryoku (Metan hakko gas nenryo denchi hatsuden system no jitsuyoka ni kansuru kenkyu kyoryoku)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Research cooperation for the commercialization of methane fermentation gas fuel cell power generation system was made in a stock farm in Guangzhou city, China, and the FY 2000 results were summed up. In the project, the methane fermentation gas is recovered from animal faces, and a power generation system by fuel cell using the gas as fuel is constructed, and at the same time the waste is made compost and used as manure. In this fiscal year, the starting ceremony was made at the stock farm in Guangzhou city in June, and the main body of fuel cells was carried in and assembled. The trial operation of the system was successfully made in March 2001. At the same time, survey of the waste water from the farm and methane fermentation was made with accuracy. Survey was further made of the actual state of the recent energy supply/demand and the present situation of renewable energy as measures taken for non-electrification areas and environmental problems. As a result, the importance of further cooperation with the China side was emphasized in terms of the securing of animals/faces, optimum methane fermentation/recovery from animal faces, optimization of electric power of the area and environmental response, etc. (NEDO)

Fiscal 1997 report on the survey for a data book on new energy technology development. Waste power generation, solar energy utilization. geothermal power generation, clean energy vehicles, coal liquefaction/gasification, and traverse themes; 1997 nendo chosa hokokusho. Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy jidosha, sekitan ekika gas ka oyobi odanteki theme)

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

The paper collected and arranged data on new energy technology. As to the waste power generation, in terms of general waste, 161 places have power generation facilities, 657,000 kW in output, as of the end of FY 1996. Out of them, 100 facilities (scale of output: 555,000 kW) are selling power. In terms of industrial waste, 53 places (209,000 kW) have power generation facilities. The output will be 2 million kW in FY 2000. In relation to the solar energy utilization, the number of solar systems introduced in FY 1996 is 25,000, that of water heating appliances produced in FY 1996 is 170,000. Geothermal power of 494,000 kW and 37,000 kW was introduced for electric power industry use and private use, respectively. Clean energy vehicles have not been so much spread, but the hybrid car was put on sale in 1997. Concerning the coal liquefaction, the R and D were made at a pilot plant of NEDOL process, and operation started in 1997. As to the coal gasification, investigational study and element study on the demonstration plant are being conducted in FY 1997 and 1998, making use of the research results obtained from the existing pilot plant of coal gasification combined power generation

Wastes power generation introduction manual. Material edition; Haikibutsu hatsuden donyu manual. Shiryohen

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-07-01

This paper collects and puts into order the materials used in preparing the manual. The materials were classified into the power generation system database related to discussion of the economic performance, case studies, technical materials, other referential materials and glossary. The database shows power generation efficiency, auxiliary power ratio, construction cost, utility cost and number of operators. The case studies present examples of economy calculations on the five recommended power generation systems at a wastes treatment capacity of 180 tons a day. Technical materials put into order the technological discussions on efficiency improvement, environmental measures (suppression of discharge of dioxins, measures for their removal, and the effects thereof), refuse derived fuel (RDF) and power plant operating techniques. The other referential materials collect laws, notifications, and guidelines related to the Welfare Ministry, laws, notifications, criteria and related to the Ministry of International Trade and Industry, and materials related to LCA, forms of power generation business entities, general wastes disposal business, and electric business bonds. The glossary explains terms required for operation and understanding of the manual. (NEDO)

Research and development of photovoltaic power system. Study on structural defects in silicon-based amorphous materials; Taiyoko hatsuden system no kenkyu kaihatsu. Amorphous silicon kei zairyo no kozo kekkan ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Shimizu, T [Kanazawa University, Ishikawa (Japan). Faculty of Engineering

1994-12-01

Described herein are the results of the FY1994 research program for structural defects of silicon-based amorphous materials for solar cells. The study on light generation defects of the a-Si:H system and rejuvenation process by annealing establishes the effects of light irradiation time on changed neutral dangling bond density as a result of light irradiation at varying temperature of 77K, room temperature and 393K. The study on annealing to rejuvenate light generation defects of various types of a-Si-H systems establishes the activation energy distribution with respect to annealing to remove light-induced defects, showing that hydrogen affects the distribution of light-induced defects. The study on decaying process of light-induced ESR for undoped and N-doped a-Si:H systems observes the decaying process of light-induced ESR, after light is cut off, extending for a period of several seconds to several hours at 77K for the a-Si-H systems containing N in a range from 0 to 12at%. The other results presented are space distribution of neutral defects of light-irradiated a-Si-H systems, and rejuvenation process of light-induced spin for the a-Si(1-x)N(x):H composition. 6 figs.

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. Demonstrative study of the photovoltaic power system (Study of the high density connection technology); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu - Taiyoko hatsuden system no jissho kenkyu (Komitsudo renkei gijutsu no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the photovoltaic power system connected to the distribution line in high density, study was made in terms of the power quality, elucidation of the effect on operation/protection of the distribution line and the measures to be taken, improvement of power quality using inverter, etc., and the FY 2000 results were summed up. In this fiscal year, the results of the research made in four years were arranged, and at the same time, the theoretical analysis, verification test, etc. that were necessary for summarization of the research results were carried out. As to various kinds of technology for the measures to be taken, the following were conducted: study of the effect on the rise in voltage of the distribution line, development of the dispersed control type voltage stabilization method, test on characteristics of individual operation of the inverter on the market, simulation analysis of characteristics of the continuous individual operation, development of the high reliability individual operation prevention method, verification study of the environmental adaptability, etc. As a technology for improving utility value of the photovoltaic power generation, a high function inverter was developed which conducts not only the dc-ac conversion, but the smoothing of generating output/load variations and load higher harmonics/reactive power compensation. At the Rokko testing facilities, test was made of the parallel operation (5 units) of the pole transformer. (NEDO)

Fiscal 1998 research report on International Clean Energy Network using Hydrogen Conversion (WE-NET). Subtask 3. Conceptual design of the whole system; 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET) sub task 3. Zentai system gainen sekkei

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This report summarizes the fiscal 1998 result on the conceptual design of the full-scale whole system from hydrogen production to end use. In elaboration of the conceptual design of a liquid hydrogen transport and storage system, a hydrogen combustion turbine generation facility was divided into a cryogenic oxygen production facility and a hydrogen combustion turbine generation facility, and their facility costs, annual expense ratios and scale factors were set separately for trial calculation of generation costs. In study on the profitability of alternative hydrogen production systems and the hydrogen combustion turbine generation system, the cost of the combination of hydrogen production by coal gasification or natural gas modification and the generation system was calculated. In addition, this cost was compared with the costs of liquid hydrogen, methanol or ammonia system. In study on the profitability of a distributed use system of hydrogen, a hydrogen diesel system, fuel cell system and fuel supply system for vehicles were studied roughly. (NEDO)

Fiscal 2000 operation report. Fiscal 2000 model project for promoting advanced utilization of coal (Survey on data control system for advanced utilization of coal in Japan); 2000 nendo sekitan kodo riyo shuishin moderu jigyo gyomu hokokusho. Nihon no sekitan kodo riyo ni kakawaru data kanri system chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

With the purpose of contributing to the drafting of, for example, measures for securing coal resources for Japan and strategies for developing coal utilization technologies from the standpoint of the world climate of the coal supply/demand in the future, database was built concerning coal information such as coal-related supply/demand trend, technological development and utilization status in Japan and foreign countries, with the results of fiscal 2000 reported. In the preparation of related applications, a jump function in the case of pages unregistered with related subjects was added to the coal information retrieval system completed last year, as were a subdividing function of retrieval conditions and a link function to pages of a technical term dictionary. In the arrangement of the database classified by the fields, programs were prepared on 14 tables primarily in relation to supply and demand, with the collection, processing and registration of the data performed. In addition, in order to deal with the clarification of the patent licensing of GIF related technologies, there was developed a graph display program using a general-purpose language, Java. (NEDO)

Research cooperation project for fiscal 1999. Research cooperation on environment-compatible type water resource effective utilization system; 1999 nendo kankyo taiogata mizushigen yuko riyo system ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Efforts are made under this project to develop a wastewater treatment/regeneration system, easy to operate and maintain and low in cost, jointly with a Philippine research institute. Technologies are transferred to this institute concerning research and development, system designing, operation, maintenance, and management. The goal is to disseminate such technologies in the Philippines. As for fiscal 1999 endeavors, emphases are placed on the items described below. The Container Corporation which regenerates waste paper and the RAM Food Corporation which manufactures canned foods and pickles are selected as the sites for pilot plant research. Wastewater discharged by the two corporations is subjected to laboratory-scale wastewater treatment (combination of aerobic/anaerobic treatment and activated carbon adsorption), by which a pilot plant wastewater treatment process is determined and designing conditions are defined. As for activated carbon for advanced wastewater treatment, a fine grain sample, which is the lowest in price among activated coconut shell charcoals produced in the Philippines, is acquired, and tested for performance. A wastewater treatment pilot plant is complete at the Container Corporation, and has started operation. (NEDO)

Fiscal 1996 survey report on the environmentally friendly type coal utilization system feasibility study. Feasibility study of the environmentally friendly type coal utilization system in Thailand; Kankyo chowagata sekitan riyo system kanosei chosa. Tai ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The paper investigated and studied the present situation and future trend of coal utilization and distribution in Thailand, and the present situation of environmental effects and the measures taken for environmental protection. Around 2010, coal will probably be produced only at EGAT`s Mae Moh (MM) coal mine. Demand for overseas coal is expected to be 40-50 million tons in 2011, and preparation of the coal center becomes a subject. For general industry use coal, pretreatment such as coal preparation, coal blending and briquetting is needed, considering coal quality, usage, transport distance and environmental effects. Brown coal of MM coal mine is a lignite with high sulfur, high ash content and low heating value. Wide spread of its use can be expected if upgrading is possible such as desulfurization, deashing, increasing heating value. In the electric power generation field, the absorber was installed at the existing boiler of the mine-mouth generating plant to conduct a verification test on high grade desulfurization of ultra-high sulfur lignite. In the industry field, the circulating fluidized bed boiler was adopted. In the residential/commercial field, introduction of briquette was proposed. 80 refs., 84 tabs.

Output characteristics of 40 kW photovoltaic power generation system in ICT; Ibaraki kosen ni okeru 40 kW taiyoko hatsuden shisutemu no shutsuryoku tokusei

Energy Technology Data Exchange (ETDEWEB)

Sekiguchi, N. [Ibaraki National College of Tech., Ibaraki (Japan); Tani, T. [Science University of Tokyo, Tokyo (Japan)

1999-11-25

The photovoltaic power generation system consists of photovoltaic array and power conditioner of the utility connected system. The photovoltaic array parallelly constitutes 18 serial 30 of the modules of 540 sheets, and there is the generating capacity of largest 40 kW. The power conditioner uses 10 kW four units, and it is tracking with function of the maximum output point. This report examined the unconformable rate of photovoltaic array maximum output operating voltage, current and power in simulation and power conditioner input. (author)

Fiscal 1976 Sunshine Project result report. R and D on solar heat power generation system (R and D on tower solar collection system); 1976 nendo taiyonetsu hatsuden system no kenkyu kaihatsu seika hokokusho. Tower shuko hoshiki system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-05-27

This report describes the fiscal 1976 research result on tower solar collection system for solar heat power generation systems, and summarizes main specifications of the subsystem, equipment and control of the 1,000kW pilot plant. Based on daily and monthly long-time simulation, various programs were prepared for power generation, heat storage and operation rate of equipment, and real arrangements for total simulation were made. The output fluctuation rate less than 1%/min was obtained by studying a control system flexible for drastic fluctuation of solar radiation using the newly prepared dynamic characteristic equation for a steam loop. 10kW solar collection test was carried out using a pancake type heat absorber. Practical basic analysis was made on a heliostat driving system. A cavity type heat absorber was adopted in consideration of cost, operability and heat discharge. Based on thermal characteristics of a heat storage type heat exchanger using molten salt as heat medium, basic experiment was made on a compact latent heat type heat exchanger. Basic studies were also made on reflector, selective absorption surface and heat storage material. (NEDO)

Project to support promotion of forming an environmentally friendly energy community. Survey report on 'a survey on introduction of an RDF electric power generation system utilizing general wastes in the Noto area'; Kankyo chowagata energy community keisei sokushin hojo jigyo. 'Noto chiiki ni okeru ippan haikibutsu riyo RDF hatsuden no donyu ni kansuru chosa' chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

A business feasibility survey was performed on introduction of an RDF electric power generation system utilizing general wastes in the Noto area. Wastes quantity was estimated by accounting for large-sized wastes to be generated newly as a result of enforcement of the container package recycling law, and transfer of non-combustible wastes to incineration. The quantity was estimated to be 84,000 tons annually. Quantities of RDF and heat were calculated from this estimation to be 103 tons per day and 400 lkcal/kg respectively. According to the result of discussing the RDF transportation systems, time-based freight was found advantageous for short distance, and distance freight system for long distance in terms of cost. Discussions for RDF power systems were carried out on an RDF circulation fluid bed furnace plus ash melting furnace, a fluid bed gasification melting furnace, and shaft furnace type gasification melting furnace. In a comprehensive view, it is difficult to distinguish them in terms of merit and demerit. Molten slag was assumed to be re-utilized, but cost for the re-utilization should be considered. According to the result of discussing the business feasibility, it was found difficult to make it profitable by operating the RDF power generation business alone, and wastes incineration charge should be collected. (NEDO)

Effects on annual cost of solar/air-heat utilization system of carbon tax and interest rate for a residential house; Jutakuyo taiyo/taikinetsu riyo system no nenkan keihi ni oyobosu tansozei kinri no eikyo

Energy Technology Data Exchange (ETDEWEB)

Shen, Q; Kenmoku, Y; Sakakibara, T [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S [Maizuru National College of Technology, Kyoto (Japan); Kawamoto, T [Shizuoka University, Shizuoka (Japan). Faculty of Engineering

1996-10-27

In recent years, a system has been proposed that utilizes river heat, air-heat, exhaust heat from a cooler, etc., in addition to natural energy for the heat pump. With the introduction of such system, the amount of energy used and that of CO2 exhaust will be greatly reduced, but annual expenses will be increased as it stands. In order to improve the cost efficiency of the system, a proposal has been made for the introduction of an economic policy such as the carbon tax and a low interest financing system. With these matters in the background, the subject study predicts the production of solar cells in the future and, on the basis of this production, determines the price, conversion efficiency and equipment energy of solar cells in the future. Using these values and taking into consideration the introduction of the carbon tax and the low interest financing system, the optimum area was determined for solar cells and heat concentrators in a future residential solar/air-heat energy system. The carbon tax, being imposed on all CO2 discharges, had a large effect. Moreover, as the tax increased, annual expenses decreased for the solar/air-heat system. 3 refs., 6 figs.

Effect of operating methods of wind turbine-generator system on net power extraction under wind speed fluctuations in fields; Hendo fukyoka deno doryoku chushutsu kara mita furyoku hatsuden system no unten seigyoho ni kansuru kosatsu

Energy Technology Data Exchange (ETDEWEB)

Wakui, T. [Japan Society for the Promotion of Science, Tokyo (Japan); Hashizume, T.; Ota, E. [Waseda University, Tokyo (Japan). School of Science and Engineering

2000-01-25

The effect of operating methods of wind turbine-generator system on net power extraction under wind speed fluctuations is discussed in relation to the dynamic behavior of the system. The system is composed of a Darrieus-Savonius hybrid wind turbine and a load generator. In this paper, two types of operating method are examined; constant tip speed ratio operation for stand-alone power systems (Scheme 1) and synchronous operation for utility power systems (Scheme 2). The computed results of the net extracting power using our dynamic simulation model show that the dominant factor of power extraction in Scheme 1 is the dynamic characteristics of rotational components and that it is important to select the appropriate rated wind speed in Scheme 2. Thus, it is concluded that a conformable operating method and rated power output of the system exist for each wind condition. In particular, small-scale systems, which are smaller than approximately 10 kW-system range, are desirable to be operated under a constant tip speed ratio as stand-alone power systems. (author)

FY 1998 Report on development of technologies for commercialization of photovoltaic power systems. International co-operative project (IEA implementing agreement for a co-operative programme on photovoltaic power systems, 9th and 10th executive committee meetings); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai kyoryoku jigyo. IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei dai 10 kai dai 9 kai iinkai

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Described herein are outline of the International Energy Agency/Co-operative programme on Photovoltaic Power Systems (IEA/PVPS), and minutes of the 9th and 10th executive committee meetings. Japan signed the IEA Implementing Agreement for a co-operative programme on Photovoltaic Power Systems in April 1993, and has been participating in the programme for research and development, demonstration, analysis, information exchange and introduction promotion, among others. The tasks are composed of exchange and dissemination of information on PVPS, operational performance and design of PVPS, use of PVPS in stand alone and island applications, grid interconnection of building integrated and other dispersed PVPS, design and grid interconnection of dispersed PVPS, e.g., roof type, design and operation of modular PV plants for large scale power generation, PV in the built environment, and feasibility study on large scale PV power generation utilizing desert areas. The 9th and 10th executive committee meetings include the co-operative programme progress reports and technical tours. (NEDO)

Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. International cooperation projects (Collection of information on Task 9 in IEA photovoltaic power generation program); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden program task IX ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This paper reports activities performed by the Task 9 in the execution treaty of the IEA photovoltaic power generation system program. The Task 9 calls for the 'proliferation of photovoltaic power generation technologies under coordination with developing countries{sup .} It is intended to compile the recommendation guides, hold workshops in the model developing countries, and coordinate with assisting organizations on technological and economical issues that may occur when introducing photovoltaic power generation systems into developing countries. The current fiscal year is the first year of the five-year plan, whereas, with structuring the basic plan placed in the center, such activities were carried out as verification of the 12 member countries and two organizations, establishment of the basic programs for the work plan, selection of work divisions, the sharing thereof, and the subjected developing countries, and the way the coordination should be with the related tasks and the assisting organizations. Two expertise conferences were held in Holland and America, and three working group meetings in Japan to have discussed the activity targets in the first fiscal year. (NEDO)

Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. International cooperation projects (Collection of information on Task 9 in IEA photovoltaic power generation program); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden program task IX ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This paper reports activities performed by the Task 9 in the execution treaty of the IEA photovoltaic power generation system program. The Task 9 calls for the 'proliferation of photovoltaic power generation technologies under coordination with developing countries{sup .} It is intended to compile the recommendation guides, hold workshops in the model developing countries, and coordinate with assisting organizations on technological and economical issues that may occur when introducing photovoltaic power generation systems into developing countries. The current fiscal year is the first year of the five-year plan, whereas, with structuring the basic plan placed in the center, such activities were carried out as verification of the 12 member countries and two organizations, establishment of the basic programs for the work plan, selection of work divisions, the sharing thereof, and the subjected developing countries, and the way the coordination should be with the related tasks and the assisting organizations. Two expertise conferences were held in Holland and America, and three working group meetings in Japan to have discussed the activity targets in the first fiscal year. (NEDO)

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Development of solar beam power generation and utilization systems and ancillary technologies (Research and development of building material integrated solar cell modules - modules with new multi-layer structure); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu (shinfukuso kozo module))

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Development is being made on a panel type module that can be used together with an air bubble concrete board (ALC board), and is provided with design characteristics. The development work includes trial fabrication and evaluation of a module with new multi-layer structure, and development of a technology to unitize cells and submodules, and a systematizing method. In the trial fabrication and evaluation, flame retardant and uninflammable modules using fluororesin, and modules with as large area as 4 m{sup 2} were fabricated on a trial basis, in addition to the modules with the basic structure. These modules were given evaluations on such wall material properties as wind pressure resistance, heat and cracking resistance, and fire resistance. In a deformation resistance test considering the integrated use with the ALC board, the developed modules showed a good result. In developing the cells with design characteristics, discussions were given on the inter-cell wiring methods. Development was made on a method to establish a unit structure based on the design and size of a building. In developing the systematization method, the trial fabrication method was applied to a module with lamination structure, a module integrated with the ALC board, and a large-area hollow module to have fabricated the top-light spandrels. (NEDO)

Report on studies on closed cycle MHD power generation; Closed cycle MHD hatsuden kento hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1991-04-01

Summarized herein are results of the studies on closed cycle MHD (CCMHD) power generation by the study committee. The studied system is based on the MHD gas turbine combined Brayton cycle of about 500,000 kW in output power, firing natural gas as the fuel, and the conceptual design works therefor are completed. The major findings are: the overall plant efficiency: 54.2% at the power transmission side, plot area required per unit power output: 0.04 m{sup 2}/KW, unit construction cost: 251,000 yen/KW, and unit power generation cost: 10.2 yen/KWh. This system will be more operable than the gas turbine combined cycle with steam system, because start-up time, output change rate, optimum load and so on are constrained not on the power generator side but on the gas turbine side. The expected environmental effects include the exhaust gas NOX concentration being equivalent with that associated with the conventional power generator of 2-stage combustion system, quantity of combustion gases to be treated being approximately 40% of that associated with the gas turbine combined cycle, and reduced CO2 gas emissions, resulting from enhanced power generation efficiency. It is expected that the CCMHD system can exhibit higher efficiency than the high-temperature gas turbine combined cycle system. (NEDO)

Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system using CSD and other wastes; Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (CSD nado haikibutsu riyo) jigyoka FS chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

This report presents the feasibility of enterprise on power generation by thermal recycle and selling power together with volume reduction, de-harming (de-toxification) and stabilization of the shredder dust. Contents of the study include the investigation of generation amount of car shredder dust (CSD) and its properties, trial design of high efficiency power generation facilities, selection of boiler tube materials, incineration test with a melting kiln test plant, disposal and effective use of melted slag and fly ash, and environmental impact assessment. The capacity of waste disposal in the trial design contains 1,140 ton/day of shredder dust, 60 ton/day of waste plastics, sludge and waste paper, and 130 ton/day of waste oil. Melting kiln with secondary combustion chamber was adopted as the incineration type. The high temperature and high pressure waste heat boiler with an extraction condensing turbine was adopted as the waste heat recovery and power generation type. Stable combustion was confirmed from the results using a test plant. According to the consideration of cost and unit cost results for wholesale power supply, if it is postulated that income for waste disposal is 12,000 yen/ton, power generation costs in excess power selling and wholesales are 6.4 yen/kWh and 9.1 yen/kWh, respectively. 67 figs., 48 tabs.

FY 1998 Report on development of technologies for commercialization of photovoltaic power systems. International co-operative project (IEA implementing agreement for a co-operative programme on photovoltaic power systems, 11th and 12th executive committee meetings); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai kyoryoku jigyo. IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei dai 12 kai dai 11 kai shikko iinkai

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Described herein are outline of the International Energy Agency/Co-operative programme on Photovoltaic Power Systems (IEA/PVPS), and minutes of the 11th and 12th executive committee meetings. Japan signed the IEA Implementing Agreement for a co-operative programme on Photovoltaic Power Systems in April 1993, and has been participating in the programme for research and development, demonstration, analysis, information exchange and introduction promotion, among others. Presented to the 11th executive committee meeting are progresses in each task, review of the PVPS programme by an independent reviewer, strategy for the next term of the PVPS agreement, and marketing of PV in the IEA member countries. The meeting also has confirmed the action plans and partial responsibilities. In the 12th executive committee meeting, the progresses of the tasks, e.g., objects, activities and problems, are reported, and reviewed by the participants. Discussed in the task 1, information exchange, are new communication methods, publication frequency and contents of Internal Survey Report, and opening of the internet home page, among others. (NEDO)

Worldwide clean energy system technology using hydrogen (WE-NET). subtask 8. Research and development of hydrogen combustion turbines (evaluation of the optimum system); Suiso riyo kokusai energy system gijutsu (WE-NET). subtask 8. Suiso nensho turbine no kenkyu kaihatsu (saiteki system no hyoka)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Based on the proposed cycle of each contractor, conceptual design of 500 MW class hydrogen combustion turbine power generation plant has been completed through its economic examination. The optimum system has been evaluated on the basis of the conceptual design. For the conceptual design of power generation plant, the gross power generation efficiencies based on HHV of topping regenerating cycle and new Rankine cycle proved to be 61.8% and 61.7%, respectively, which exceed the target efficiency 60%. Economic consideration proved that the construction cost of each cycle will be as the same as that of the current combined cycle power generation plant. The development problem, development step and development cost have become clear. Examination on the reliability proved that the operation reliability of each cycle will be as the same as that of the current combined cycle power generation plant. Examination on the plant layout proved that the conservation of space for each system will be smaller than that of current combined cycle power generation plant. Environmental examination confirmed that each system is very clean power generation system. For the evaluation proposed by each company, the total points of each system became in the order, topping regeneration cycle, new Rankine cycle, and Rankine cycle with reheat and recuperation. 112 figs., 44 tabs.

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 3. Conceptual design of the total system (safety measures and evaluation technology); Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 3. Zentai system gainen sekkei (anzen taisaku hyoka gijutsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Safety measures and assessment technology were studied for the WE-NET project. As the study result in fiscal 1996, the information on safety design, anomaly and accident was collected and arranged. The information on safety measures, ideology and criterion was also collected by visiting some domestic and overseas organizations experienced about handling of liquid hydrogen (LH). The initial survey was made for the safety design ideology, analytical technique and disaster preventive measures of LNG systems as the similar cold liquid system. Accidents and explosion accident of a hydrogen production plant (water electrolysis) in Germany were analyzed. Events on storage tanks and leakage around the tanks were studied as typical risk of LH considering temporary and LNG system design information. The model based on the LH spillage test result and 3-D dispersion of vapor cloud were prepared by modifying a simulation code. The model allowed evaluation of the effect of explosion and fire accidents of compressed hydrogen gas and flying fragments on structures and people, and visual display of distances from a tank and damage conditions. 19 refs., 29 figs., 18 tabs.

FY 2000 report on the survey of the stabilization of wind power generation power system, etc.; 2000 nendo furyoku hatsuden denryoku keito anteika nado chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the purpose of elucidating effects of output fluctuations at the time of quantity introduction of wind power generation, conducted were observation of wind characteristics in Hokkaido and analysis of the characteristics, estimation of fluctuations in wind power output, analysis of fluctuations in system frequency, etc. In the observation of wind characteristics, wind velocity/wind direction were measured at observation posts of 30 wind turbines installed at 16 sites in Hokkaido. Concerning the conversion into wind power output, 10 cases were selected such as the case of passage of low atmospheric pressure, etc., and the generator unit and wind firm were simulated in detail. In the estimation of wind power output, good agreement with the results estimated was confirmed at points very near to posts of observation of wind characteristics. As to the evaluation of effects of wind power generation to the system, power system frequencies were simulated using the models constructed and using capacity and kinds of frequency adjusted power source as parameter. As a result, it was indicated that there was a possibility of frequency's sharply fluctuating in case the surplus energy in frequency adjustment is reduced by fluctuations in demand and further in case wind power output is fluctuated. (NEDO)

Research cooperation report for fiscal 1997 on the environment-friendly system for effectively utilizing water resources; 1997 nendo kankyo taiogata mizushigen yuko riyo system ni kansuru kenkyu kyoryoku itaku gyomu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This effort exerted in cooperation with the Philippines aims to solve problems related to water resources such as stable supply and pollution of water through developing a waste water treatment/water reuse system which is easy to operate and maintain, and low in price. The ultimate goal includes (1) the construction of a waste water treatment/water reuse system comprising an anaerobic reaction tank and activated charcoal absorption tower, easy to operate and maintain, and low in price, (2) the employment of goods procurable in the Philippines, the goods including carriers for use in the anaerobic reaction tank, microbes for use in both aerobic and anaerobic reaction tanks, and activated charcoal for use in waste water reutilization, and (3) the establishment of optimum operating conditions for the waste water treatment/water reuse system by use of a pilot plant and the transfer of operating and managing techniques to the Filipino counterpart. In this fiscal year, investigations are conducted to disclose the actualities of waste water treatment and water consumption by primary industries in the vicinity of Laguna de Bay, and the waste water to be the object of study and the place of pilot plant installation have been selected. Also conducted are investigations into the carrier, microbe, activated charcoal, etc., for use in the anaerobic reaction tank. (NEDO)

Evaluation and analysis of long-term operation data for a grid connected PV generation system; Nippon de hajimete no gyakuchoryu ari kojin jutaku taiyoko hatsuden system no choki unten jisseki no hyoka kaiseki

Energy Technology Data Exchange (ETDEWEB)

Ishida, T.; Kozuma, S.; Hagihara, R.; Kishi, H.; Uchihashi, K.; Tsuda, S.; Nakano, S. [Sanyo Denki Co. Ltd., Tokyo (Japan)

1997-11-25

Long-term operation of a photovoltaic power generation system installed in a private residence in Osaka in 1992 is evaluated. Since the sale of power by back flow was approved five years ago, it has been working continuously without troubles. The evaluation covers the array output coefficient, inverter performance, system output coefficient, and power generation and sale track records. The findings obtained are mentioned below. Regular seasonal changes are observed in the array output coefficient, high in winter and low in summer, but the variation is smaller in amorphous arrays than in polycrystalline arrays. The monthly level of inverter performance is almost in all months higher than 0.90 specified for standard operation. The overall system output coefficient is 0.749, which is higher than the average value in NEDO`s field test business report. A total of 7852kWh has been generated since the system started operation five years ago, of which 3787kWh or 48% has been sold. 3 refs., 9 figs., 5 tabs.

Project subsidized by the Sunshine Project in fiscal 1982. Report on achievements in the project commissioned from NEDO - development of a hot water utilizing power generation plant and development of a binary cycle power generation plant (Researches on corrosion preventive measures and the cycle optimum for the plant); 1982 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (fushoku taisaku no kenkyu oyobi plant saiteki cycle no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1983-03-01

As the element research on a 10-MW class geothermal binary cycle power plant to be built in the coming term, researches were made on corrosion preventive measures and the cycle optimum for the plant. This paper reports the achievements in fiscal 1982. In the research on corrosion preventive measures, different kinds of materials were buried in three locations having different soil natures to study corrosion due to soil. The corrosion rate of heat conducting pipes using the heat media R114 was estimated as very small as 1/40 of the corrosion rate in geothermal waters. In the research on the cycle optimum for the plant, experimental research was performed on thermo-dynamic properties and thermal stability of the mixed media using R114 as the main component. As a result, the R114/R112 system was found to have higher pressure than R114, but the media circulation amount is less, and the output at the power transmission terminal increased by 5 to 10%. The system showed the most excellent heat cycle characteristics. In the research of building a power plant installed with two different power generation systems, a computer program was prepared that calculates heat balances all at once for the case of installing a geothermal binary cycle power plant in a geothermal steam power plant. (NEDO)

Report on achievements in technological development in fiscal 1999. Development of technology to put photovoltaic power generation system into practical use (Research and development of high reliability storage batteries for photovoltaic power generation use); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri (taiyoko hatsuden'yo chikudenchi kaihatsu bukai)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

Storage batteries used in household photovoltaic systems must be free of electrolyte leakage and maintenance, and be readily installable in residential houses. Lead-acid batteries that can meet these requirements and have been put into practical use may include the sealed storage batteries. However, these batteries currently in use have drawbacks in life performance and price. Therefore, development is under way on lead-acid batteries for household photovoltaic systems by improving said sealed lead-acid batteries. The targeted batteries should have as long life as passing 3,000 cycles under a condition of 0.1 to 1 CA discharge (at depth of discharge of 50%), energy density of more than 70 Wh per liter, and cost of 12 yen or lower per watt-hour. A prototype battery as the final candidate was fabricated, that uses silica powder as the electrolyte retainer (silica powder filled between plates, and into clearance between plate groups), pasted plates made of expanded metal grids for positive plates, and micro conductive network plates with increased addition amount of carbon to micro active material (PbO{sub 2}) as negative plates. Life performance testes thereon are being performed. This lead-acid battery is estimated to be capable of satisfying the intended performance based on the result of discussions having been made so far. (NEDO)

Fiscal 1995 survey report on the feasibility study of the environmentally friendly type coal utilization system. Feasibility study of the environmentally friendly type coal utilization system in Thailand; Kankyo chowagata sekitan riyo system kanosei chosa. Tai ni okeru kankyo chowagata sekitan riyo system kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-06-01

The paper surveyed the present situation and future trend of economy, energy supply/demand, coal production/distribution/utilization and the environmental effects in Thailand. The survey on the coal utilization and its environmental effects was partially requested of the environmental research institute in Thailand. The amount of coal utilization in Thailand rapidly increased to nearly four times as large as that ten years ago mainly in terms of domestic lignite under the government`s policy on expansion of the domestic energy use. However, most of this domestic lignite is low-grade coal with low calories and high sulfur content, and the use of it was rapidly increased mostly in power generation sector without no adequate environmental measures taken. This caused an environmental problem on air pollution due to sulfur oxides at Mae Moh power plant in the north several years ago, and the damages to the regional residents, etc. were given much publicity by journalism and developed the social problem. Accordingly, Thai people are now critical of the coal resource exploration and the coal use expansion. Under the circumstances, the Ministry of Industry and the energy related ministries/offices are obliged to review their development/promotion plans. 84 figs., 99 tabs.

Fiscal 1999 research cooperation project. Research cooperation on community-oriented practical photovoltaic power systems (Practical methane gas fermentation fuel cell power systems); 1999 nendo metan hakko gas nenryo denchi hatsuden system no jitsuyoka ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This report describes the research cooperation with developing countries on practical methane gas fermentation fuel cell power systems in 1999-2002. This research aims to construct the methane gas fermentation fuel cell power facility using livestock excreta which can supply power to the facility and peripheral areas. The facility controls various substance concentrations in waste water within environmental standards, and uses waste as compost. This project is very promising in use of environment-friendly energy, effective use of unused energy and power supply to unelectrified areas for China under serious conditions such as rapid increase in energy demand and various environment problems. There are such various issues to achieve this target as securing livestock (pig breeders) and excreta, and fermentation and recovery of suitable methane gas necessary for fuel cell power systems from excreta. This report is composed of 2 parts, (1) Current use of energy resources and use of unused energy in Guangdong province, and (2) Technical requirements for practical methane gas fermentation fuel cell power systems. (NEDO)

FY1995 research report on the survey of cryogenic energy utilization systems for environmentally friendly energy community project. Case studies of LNG cryogenic energy cascade-wise utilization; 1995 nendo kankyo chowagata energycommunity jigyo ni kakawaru reinetsu riyo system kento chosa hokokusho. LNG reinetsu no cascade teki riyo case study

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Japan's import of LNG (liquefied natural gas) has increased in these 15 years from 13-million tons to 43-million tons at a high rate of 2-million tons a year. At present LNG is used only in power generation and town gas business, and its cryogenic feature which may be useful in various fields is not being utilized. In this survey, factors impeding the wider application of the cryogenic energy are investigated, methods for using the energy more widely and mechanisms required therefor are studied, and discussion is made about the feasibility of the utilization of the energy in a cascade-wise form under the environmentally friendly energy community project. Researches are conducted and the results are evaluated in a study carried out on the comprehensive utilization of LNG cryogenic energy. These researches involve the actualities and trends of LNG cryogenic energy utilization in Japan; current status and prospect of the involvement of LNG bases with their neighboring industries and communities; technological measures for cryogenic energy utilization; technological measures related to low-temperature media and cold heat transportation systems; technological measures for the cascade-wise multidirectional utilization of cryogenic energy; and case studies on assumed local models. (NEDO)

Output characteristics of floating type wave power generator system using a ball screw; Fuyugata nejishiki haryoku hatsuden sochi no shutsuryoku tokusei

Energy Technology Data Exchange (ETDEWEB)

Abe, T; Omata, K [Meiji University, Tokyo (Japan)

1996-10-27

A floating type wave power generator system using a ball screw is proposed. Output characteristics are simulated on the supposition of its employment aboard a navigational aid buoy. The relative linear movement produced by waves between the main body and float is transmitted via a load column to a ball nut and is converted into a rotary movement of a threaded shaft engaging the ball nut. Attached to the bottom end of the threaded shaft is a one-way clutch which connects to the generator axle when the relative velocity between the float and main body is positive. The simulation was conducted for a wave activated power generation buoy, 2.6m in outer diameter, 4.5m in length, and 6000kg in total mass. The buoy generated a mechanical output of 340kW when exposed to a sinusoidal wave 2.5 seconds in period and 40cm in wave height. A tank test was performed using a reduced scale model consisting of a ball screw, bicycle dynamo, and float, with the main body being 318mm in diameter and 833mm in length, when an average output of 4.51W was obtained at 60% efficiency. The results of the experiment agreed in some degree with the results of calculation, verifying the righteousness of the theoretical formula. 3 refs., 7 figs., 4 tabs.

1998 research cooperation project. Research cooperation on environment-compatible type water resource effective-utilization system; 1998 nendo kankyo taiogata mizushigen yuko riyo system ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the purpose of securing water stably and preventing water pollution in the Philippines, R and D were carried out on a wastewater treatment and water reclamation and reuse system which is easy to operate and maintain and low in cost through the research cooperation between the Philippine Industrial Technology Development Institute and Japan. According to the survey result of statistical data concerning water pollution load structure by industrial wastewater classified by the industry in the Philippines, enumerated are the food manufacturing industry, paper pulp manufacturing industry, and the textile dyeing industry as those greatly affecting water pollution in BOD exhaust and wastewater, etc. Consequently, with Ram Food Product Co. of vegetable processing and Solid Mill Co., of textile dyeing as plants to be studied, a wastewater treatment test was performed in a laboratory scale. From the result of the test, the pilot plant was basically designed to have 'anaerobic + aerobic treatment + tertiary treatment' for the treatment process, with an one-tank type UASB method used as the anaerobic treatment, with a sand filtration + activated charcoal treatment as the tertiary treatment, and with the cost effectiveness for water reuse set to be examined. (NEDO)

Sunshine Program for fiscal 1981. Development of practical application technologies for photovoltaic power systems (Management of research and development); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

To gain a helpful guide toward the next process by properly evaluating the current project, evaluation of cost and inputted energy is indispensable. In fiscal 1981, as the first step of such evaluation effort, a manufacturing process model is built based on data about designing and manufacturing, and is subjected to analysis. Cost forming factors are extracted from the respective processes, and their relations are analyzed. Parameters are analyzed for the survey of energy that a system demands for operation. Test facilities now under construction are also subjected to a cost analysis. A system design document is prepared for cost analysis and for assisting the process improvement and evaluation work. For the establishment of low-cost mass-production technologies, it is necessary to reappraise the currently-employed technologies for all the processes. It is necessary to coordinate the basic processes in terms of dimension and efficiency to enable them to function as a continuous, consistent production process. Target values are set for the respective processes for an output of 500kW/year at a cell conversion efficiency of 9%. In selecting items to be specified and values to be attained, users' requests are fully considered. Details are prudently coordinated of conditions for delivery from a process to another. (NEDO)

Sunshine Program for fiscal 1981. Development of practical application technologies for photovoltaic power systems (Management of research and development); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

To gain a helpful guide toward the next process by properly evaluating the current project, evaluation of cost and inputted energy is indispensable. In fiscal 1981, as the first step of such evaluation effort, a manufacturing process model is built based on data about designing and manufacturing, and is subjected to analysis. Cost forming factors are extracted from the respective processes, and their relations are analyzed. Parameters are analyzed for the survey of energy that a system demands for operation. Test facilities now under construction are also subjected to a cost analysis. A system design document is prepared for cost analysis and for assisting the process improvement and evaluation work. For the establishment of low-cost mass-production technologies, it is necessary to reappraise the currently-employed technologies for all the processes. It is necessary to coordinate the basic processes in terms of dimension and efficiency to enable them to function as a continuous, consistent production process. Target values are set for the respective processes for an output of 500kW/year at a cell conversion efficiency of 9%. In selecting items to be specified and values to be attained, users' requests are fully considered. Details are prudently coordinated of conditions for delivery from a process to another. (NEDO)

CIM overview. (2). ; Architecture, infrastructure, information technology. CIM soron. (2). ; Architecture, infra, joho riyo shien gijutsu

Energy Technology Data Exchange (ETDEWEB)

Seryo, K [IBM Japan Ltd., Tokyo (Japan)

1991-12-10

The materialization of computer integrated manufacturing (CIM) requires an establishment of its systematizing system, i.e., architecturer and planning of the infrastructure to support it and basic engineering to support the informational utilization. The CIM architecture is classified into management and system structure, strategic planning method, System development introduction method, etc. The infrastructure aims at epoch-makingly heightening the productivity and speed by integrating the production planning, engineering design, accounting, sales, general business and affairs, production engineering, production activities, and activities of suppliers and clients. The informational utilization support engineering comprises the management support tool, decision making support tool, application development tool, etc. What is important is to establish a system of systematizing engineering in order not to be behind the strategic activation era of information to come. 17 refs., 4 figs., 1 tab.

Research and development of evaluation system for photovoltaic power generation system. Survey on research and development of solar cell evaluation system; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. Taiyo denchi hyoka system no kenkyu kaihatsu chosa

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the survey results on R and D of solar cell evaluation systems in fiscal 1994. The performance/reliability evaluation subcommittee continuously analyzed technical issues and discussed solution measures from the last fiscal year. On development of performance evaluation methods, improvement of measurement accuracy for laminated solar cells is the study issue to be solved. Although laminated solar cells are measured by multiple light source solar simulator, difficult spectrum compensation causes measurement errors. Collection and analysis of data for determining atmospheric conditions, and outdoor measurement experiment under the atmospheric conditions for reference solar light were carried out. The study on incident angle characteristics of laminated solar cells clarified that the deviation from COS characteristics is 1.0% or less at an incident angle of 30{degree}. The study on generated energy in solar cell module level in field clarified that generated energy and generation efficiency are proportional to intensity of solar radiation. 1 tab.

FY1995 research report on the survey of cryogenic energy utilization systems for environmentally friendly energy community project. Case studies of LNG cryogenic energy cascade-wise utilization; 1995 nendo kankyo chowagata energycommunity jigyo ni kakawaru reinetsu riyo system kento chosa hokokusho. LNG reinetsu no cascade teki riyo case study

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Japan's import of LNG (liquefied natural gas) has increased in these 15 years from 13-million tons to 43-million tons at a high rate of 2-million tons a year. At present LNG is used only in power generation and town gas business, and its cryogenic feature which may be useful in various fields is not being utilized. In this survey, factors impeding the wider application of the cryogenic energy are investigated, methods for using the energy more widely and mechanisms required therefor are studied, and discussion is made about the feasibility of the utilization of the energy in a cascade-wise form under the environmentally friendly energy community project. Researches are conducted and the results are evaluated in a study carried out on the comprehensive utilization of LNG cryogenic energy. These researches involve the actualities and trends of LNG cryogenic energy utilization in Japan; current status and prospect of the involvement of LNG bases with their neighboring industries and communities; technological measures for cryogenic energy utilization; technological measures related to low-temperature media and cold heat transportation systems; technological measures for the cascade-wise multidirectional utilization of cryogenic energy; and case studies on assumed local models. (NEDO)

Achievement report for fiscal 1981 on Sunshine Program. Practical application technologies for photovoltaic power systems (Development of peripheral technologies); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu seika hokokusho. Shuhen gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1982-03-01

As for their outputs, the 3kW separately-excited and self-excited photovoltaic power plants yield daily averages of 7.8kWh and 6.9kWh, respectively, and this means that the self-excited type is inferior to the separately-excited type in terms of conversion efficiency. Automatic measuring devices for photovoltaic characteristics are installed at Sapporo, Sendai, Nagoya, and Miyazaki, which will elucidate regional difference in photovoltaic characteristics. A simulation of photovoltaic characteristics is performed and the resultant value is compared with the yield of an experimental 3kW system, and the result of the comparison is found reasonable. Cell arrays are subjected to investigation for configurations lowest in output loss for the respective shadow patterns. Harmonic characteristics are analyzed under plural-interconnection circumstances. Studies are made to miniaturize and simplify system constituents, and it is found that a 3-hour storage is proper for a 3kW-class storage battery. It is also found that a self-excited type suffers less voltage fluctuation in interconnected operation on a small short-circuit capacity system. Possibilities are that independent operation is started when output is larger than load, which is to be detected by checking changes in phase, frequency, etc. Array configuration, arresters, and shielding wires are taken up for the study of measures to cope with direct thunder strokes. (NEDO)

Survey of a technology to introduce the waste-fueled power generation. Basic manual for introduction of the waste-fueled power generation; Haikibutsu hatsuden donyu gijutsu chosa. Haikibutsu hatsuden donyu kihon manual

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Local government offices, etc., which are expected to shoulder responsibility for introducing the waste-fueled power generation, want to need exact information on technical information concerning the waste-fueled power generation and the method to materialize the introduction plan, etc. Therefore, Electric Power Development Co. surveyed and studied it under the contract with NEDO. The results were collected together as a basic manual for introduction of the waste-fueled power generation. As an outline of the waste-fueled power generation, the manual explains the significance, the present situation and potentials, the waste-fueled power system, an outline of working out the waste-fueled power generation plan, an outline of construction and operation/maintenance of the waste-fueled power generation, an outline of various systems relating to the waste-fueled power generation, etc. As the items for the study of making a concrete plan for power generation equipment, the manual explains the amount of refuse to be incinerated, the present status of generation capacity as viewed from the quality of refuse, the quality of refuse and the design of power generation equipment, boiler efficiency, power generation efficiency, construction cost and operation cost, etc. In addition, the paper describes a case study of the waste-fueled power generation plan. 118 figs., 39 tabs.

Research and development of evaluation system for photovoltaic power generation system. Research and development of evaluation systems for photovoltaic cells and modules; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. Taiyo denchi hyoka system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the study results on R and D of the evaluation system for solar cells in fiscal 1994. (1) On development of the performance evaluation method for solar cells, data collection, analysis and measurement of atmospheric conditions necessary for outdoor measurement were carried out to improve the measurement accuracy of laminated solar cells. The validity of measurement methods was verified by comparing experimental results with outdoor measurement ones to improve the indoor measurement accuracy by multiple light source solar simulator. Generated energy in solar cell module level was also studied in field. (2) On development of the reliability evaluation method for solar cells, deterioration data were collected and analyzed by long-term exposure test. As a result, it was clarified that Pmax values are directly affected by seasonal change in air mass, and deterioration of solar cells is hardly found after exposure test for one year, showing a stable state. The characteristic recovery experiment of amorphous solar cell modules was carried out, and the accelerated deterioration test method of thin film cell modules was also studied. 2 figs.

Molten carbonate fuel cell power generation system. Yoyu tansan prime en gata nenryo denchi hatsuden sochi

Energy Technology Data Exchange (ETDEWEB)

Uematsu, K; Hatori, S [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

1991-11-01

In an indirect internal reforming type molten carbonate fuel cell, the reforming temperature is limited less than the operating temperature of the fuel cell, as the heat source for reforming is depended on the reaction heat at about 650 {degree} C of the fuel cell. To improve the reforming rate at the low temperature range, it is considered to increase S/C (ratio of steam to carbon), but this scheme will cause such problems as to increase the voltage drop of the anode, to drop the heat recovery ratio on the cogenerator, to increase the capacity of the heat exchanger, etc. In this invention, in the power generating plant of a molten carbonate fuel cell the inert gas is added to the reforming raw gas, and in addition to the above the gas is mixed with steam and led into the reforming chamber of the plant. When the inert gas which is not directly concerned in the reforming reaction is added to, total mol number increases and the reforming reaction is acceralated. Consequently, the reforming rate can be raised, though the reforming temperature is low. 2 figs.

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. International cooperation project (IEA photovoltaic power generation program - Collection of the information on Task IX); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai jigyo kyoryoku (IEA taiyoko hatsuden program task IX ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Based on 'the Implementing agreement for a research cooperation project on the photovoltaic power system' being promoted by IEA, collection of the information was made on Task IX: Promotion of the effective spread of the PV technology in developing countries, and the FY 2000 results were summarized. In Task IX, for technical/economic subjects in introducing the PV system to developing countries, a commendable/practical guide using the experiences having been gained was to be arranged. Also, workshop was to be opened in developing countries as model, and cooperation was to be promoted with international organizations such as the Bank of the World. In this fiscal year, two meetings of specialists (abroad) and four sectional meetings of operation (in Japan) were held. This fiscal year was the second year of the 5-year plan. The standard for selecting developing countries as model was studied, and a draft of the commendable/practical guide was made and discussed in the meeting of specialists. (NEDO)

FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. International cooperation project (IEA photovoltaic power generation program - Collection of the information on Task IX); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai jigyo kyoryoku (IEA taiyoko hatsuden program task IX ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Based on 'the Implementing agreement for a research cooperation project on the photovoltaic power system' being promoted by IEA, collection of the information was made on Task IX: Promotion of the effective spread of the PV technology in developing countries, and the FY 2000 results were summarized. In Task IX, for technical/economic subjects in introducing the PV system to developing countries, a commendable/practical guide using the experiences having been gained was to be arranged. Also, workshop was to be opened in developing countries as model, and cooperation was to be promoted with international organizations such as the Bank of the World. In this fiscal year, two meetings of specialists (abroad) and four sectional meetings of operation (in Japan) were held. This fiscal year was the second year of the 5-year plan. The standard for selecting developing countries as model was studied, and a draft of the commendable/practical guide was made and discussed in the meeting of specialists. (NEDO)

Achievement report for fiscal 1998 on development of power generation using fuel cells. Research and development of molten carbonate fuel cell (II-2, text of the achievement); 1998 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. Yoyu tansan'engata nenryo denchi hatsuden system no kenkyu kaihatsu (II-2, kenkyu seika no honbun)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

The effort aims at developing a 1000kW-class power plant and also at using gasified coal as fuel in the future. The fuel system facilities include a high-temperature blower. The exhaust heat recovery facilities comprise a heat recovery steam generator (HRSG) and a turbine compressor. As for the electrical system facilities, an inverter is installed, tested, and adjusted. Control system facilities are also tested and adjusted. In relation with the operation of the plant, coordination is conducted about technological and process-related matters with the Kawagoe thermal power station of Chubu Electric Power Co., Inc., where the fuel cell power plant is to be constructed, which is for the smooth execution of a test run. Ceramic-based cathode materials are being developed, which is for the fabrication of stacks improved in performance, higher in current density, longer in life, and lower in cost. Also exerted are efforts at developing multiple-function electrolyte plates and metallic materials (for example for separator plating). The extent of the acceptability of impurities concentration and gas refining systems are also under study, which is to prepare for future coal gasification. Reference is also made to the study of a total system. (NEDO)

Achievement report for fiscal 1998 on development of power generation using fuel cells. Research and development of molten carbonate fuel cell (II-2, text of the achievement); 1998 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. Yoyu tansan'engata nenryo denchi hatsuden system no kenkyu kaihatsu (II-2, kenkyu seika no honbun)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

The effort aims at developing a 1000kW-class power plant and also at using gasified coal as fuel in the future. The fuel system facilities include a high-temperature blower. The exhaust heat recovery facilities comprise a heat recovery steam generator (HRSG) and a turbine compressor. As for the electrical system facilities, an inverter is installed, tested, and adjusted. Control system facilities are also tested and adjusted. In relation with the operation of the plant, coordination is conducted about technological and process-related matters with the Kawagoe thermal power station of Chubu Electric Power Co., Inc., where the fuel cell power plant is to be constructed, which is for the smooth execution of a test run. Ceramic-based cathode materials are being developed, which is for the fabrication of stacks improved in performance, higher in current density, longer in life, and lower in cost. Also exerted are efforts at developing multiple-function electrolyte plates and metallic materials (for example for separator plating). The extent of the acceptability of impurities concentration and gas refining systems are also under study, which is to prepare for future coal gasification. Reference is also made to the study of a total system. (NEDO)

Fundamental study on PV system for floating water power device `Mighty Whale`; Okiai futaishiki haryoku sochi `Mighty Whale` eno taiyoko hatsuden sochi tosai no kihon kento

Energy Technology Data Exchange (ETDEWEB)

Washio, Y [Japan Marine Science and Technology Center, Kanagawa (Japan)

1996-10-27

Studied in this paper is the use of a photovoltaic power generation system in combination with a wave energy conversion system to cover the latter`s weak point that it is available but intermittently. An offshore floating wave power device Mighty Whale (MW) is described, which will have a wave energy absorbing air chamber in the front and an anti-rocking float that looks like a whale in the rear. The movement, up and down and back and forth, of the water surface in the air chamber due to incident waves turns the power generator turbine. Out of the space available on the MW, a 200m{sup 2} area has been specified as the place suitable for the installation of solar cells capable of a maximum output of 20kW, for which specification the elevation of the sun has been taken into account. Batteries will routinely be supplied with power in parallel from the wave activated and photovoltaic devices, the supply will be limited when the batteries are fully charged, and an auxiliary power generator will be run in case of shortage. Power that can be provided by a 20kW solar array was calculated using actual data of sunshine on the slope for each array orientation, and required battery capacity was calculated for each solar array orientation. Important items for consideration for the insurance of reliability on the ocean include measures against salt damage, detailed designing of wiring, and coordinated operation of photovoltaic and wave activated power generation systems. 3 refs., 6 figs., 5 tabs.

Performance analysis in Japanese field test program; Field test data kara no chiiki hatsuden kaiseki hoho

Energy Technology Data Exchange (ETDEWEB)

Sugiyama, H.; Kurokawa, K.; Uchida, D. [Tokyo University of Agriculture and Technology, Tokyo (Japan); Otani, K.; Sakuta, K.; Tsuda, I. [Electrotechnical Laboratory, Tsukuba (Japan); Oshiro, T.; Sakamoto, K. [Japan Quality Assurance Organization, Tokyo (Japan)

1997-11-25

Power generation characteristics are investigated using data collected in photovoltaic power generation field tests being undertaken by NEDO (New Energy and Industrial Technology Development Organization). The photovoltaic power generation system performance is evaluated by examining loss factors leading to degradation in system performance, with weather conditions such as variation in insolation and air temperature, inverter performance, and shadows cast by surrounding buildings taken into consideration. As the result, it is found that the important loss factors are degradation in module performance due to elevated temperature, drift in the maximum output control, degraded inverter performance due to input power variation, effect of shadows, etc. It is learned that system is greatly affected by degradation in module performance due to increased temperature in summer and by shadows in winter, the two being responsible for the output coefficient dropping to approximately 75% throughout the year. The output coefficient frequency distribution charts for the 75 test sites confirm that the rate is as low as 70-80% at many sites. As for the system operating time, it tends to be longer in West Japan where the annual insolation rate is higher. 3 refs., 10 figs.

Report on achievements in fiscal 1998. Survey on environmental effects from photovoltaic power generation systems; 1998 nendo daikibo taiyoko hatsuden system no kankyo eikyo ni kansuru chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Different environmental effects may be assumed when large-size photovoltaic power generation systems are installed in vast unutilized lands including deserts. Knowledge having been acquired to date has been put into order on the following subjects as the pre-survey thereon: (1) environmental characteristics of desert areas, (2) discussions on environmental effects from (a) environmental assessment viewpoints, (b) contents of the environmental assessment, and (c) environmental assessment institutions, and (3) the survey policy. In discussing the environmental characteristics, it is revealed that desert areas are neither sterile nor unused, but pasturage and agriculture have been carried out in historical and traditional ways. In discussing the environmental effects, it was recognized that surveys on primary and secondary effects on the environmental are indispensable. With regard to the institutions, there are countries who have and have not the institutions even among the OECD member states. In addition, it was known that environments in the desert areas vary greatly according to the particular areas, whereas there are possibilities of installing the facilities because the effects of the facility locations on the environment are various. Therefore, it was decided to start from the case studies in locations of different types. (NEDO)

Technology of CCS coal utilization (outline of large-size demonstration test for CCS); CCS tan riyo gijutsu

Energy Technology Data Exchange (ETDEWEB)

Konno, K [Center for Coal Utilization, Japan, Tokyo (Japan); Hironaka, H [Idemitsu Kosan Co. Ltd., Tokyo (Japan)

1996-09-01

The coal cartridge system (CCS) is a series of the total system, in which coal is processed centrally at a supply base for each unit of consumer areas, supplied as pulverized coal in bulk units, and coal ash after combustion is recovered and treated. The system is expected of advantages resulted from the centralized production, elimination of handling troubles, and cleanliness. Following a small scale demonstration test, a large demonstration test for practically usable scale has begun in 1990, and completed in fiscal 1995. This paper introduces the CCS and reports the result of the test. In the large demonstration test, a supply station (with manufacturing capability of 200,000 tons a year) was installed in the Aichi refinery of Idemitsu Kosan Co., Ltd., and systematization on quality design and system technologies has been carried out. Long-term continuous operation for five years was achieved (operation time of the supply facilities was about 19,000 hours) without a failure and accident, to which every elemental technology was evaluated highly, and convenience and reliability of the system was verified. 13 figs., 3 tabs.

Present status of geothermal power development in Kyushu; Kyushu ni okeru chinetsu hatsuden no genjo

Energy Technology Data Exchange (ETDEWEB)

Akiyoshi, M. [Kyushu Electric Power Co. Inc., Fukuoka (Japan)

1997-10-20

The present situation was introduced of the geothermal power generation in Kyushu. In Kyushu, where there are lots of volcanos and abundant geothermal resources, the geothermal exploration has been made since long ago. Three non-utility use units at three geothermal power generation points and six commercial use units at five points are now in operation in Kyushu. The total output is approximately 210 MW, about 40% of the domestic geothermal power generation. At Otake and Hacchobaru geothermal power plants, the Kyushu Electric Power Company made the geothermal resource exploration through the installation/operation of power generation facilities. At the Otake power plant, a geothermal water type single flashing system was adopted first in the country because of its steam mixed with geothermal water. At the Hacchobaru power plant, adopted were a two-phase flow transportation system and a double flashing system in which the geothermal water separated from primary steam by separator is more reduced in pressure to take out secondary steam. Yamakawa, Ogiri and Takigami power plants are all for the joint exploration. Geothermal developers drill steam wells and generate steam, and the Kyushu Electric Power Company buys the steam and uses it for power generation. 5 figs., 1 tab.

Worldwide clean energy system technology using hydrogen (WE-NET). Interim report of the research and development in Phase 1; Suiso riyo kokusai clean energy system gijutsu (WE-NET). Daiikki kenkyu kaihatsu chukan seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-01-01

Large scale and effective utilization of renewable energy including hydroelectric power, photovoltaic power, and wind power which are abundant on the earth can contribute to the solution of global environmental issues as well as the release of energy demand and supply. Hydrogen can be produced from the renewable energy, and is converted, transferred and stored if necessary. Such hydrogen can be used in various fields for power generation, fuel for transport, and city gas. In order to establish the technology by which worldwide energy network can be introduced for wide range of fields, conceptual design of a total system has been conducted, and elemental core technologies have been developed. Conceptual design of a practical scale system (total system) including a wide range from production of hydrogen to its utilization has been conducted, and its constitution has been illustrated. In addition, the energy balance and cost of hydrogen have been calculated and analyzed as a trial. Hydrogen production technology, transport and storage technology, and hydrogen utilization technology are introduced as individual elemental technologies. Research results of innovative and leading technologies obtained in FY 1996 are reviewed. 80 figs., 56 tabs.

Fiscal 1994 research report. Demonstration test for establishing technology for peakload shaving with dispersed small residential PV systems (Evaluation of weatherability of house-use solar light electric power generating system equipment); 1994 nendo jutakuyo taiyoko hatsuden fuka heijunka gijutsu nado kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutakuyo taiyoko hatsuden system kiki no taikosei hyoka

Energy Technology Data Exchange (ETDEWEB)

NONE

1995-03-01

Weatherability tests such as exposure to the atmosphere are conducted to collect and accumulate information on the degradation of house-use photovoltaic equipment expected to come into use in areas where weather conditions are hostile. Based on the thus collected data, analysis and evaluation are conducted about the mechanisms of corrosion and degradation for the establishment of designing and evaluating methods for maintaining weatherability. Since fiscal 1994 is the first year of the project, preparations are made for tests to be conducted. In carrying out research activities, a Weatherability Evaluation Committee for House-Use Solar Light Electric Power Generating System Equipment is organized, who discuss implementation of the project. Discussion is made on the shape and structural materials of the exposure rack. An aluminum alloy coated with a clear coating of alumite sulfate is selected, and a rack is built. Specifications of a sea salt particle collector are discussed, and preparations are made for arresting and quantifying sea salt particles under the Japanese Industrial Standard (JIS) dry gauze method and the International Organization for Standardization (ISO) wet candle method. Solar cell module initial characteristics are measured. (NEDO)

Fiscal 1999 hydrogen utilization international clean energy system technology (WE-NET). Phase 2 R and D (Task 1. Survey/study concerning system evaluation); 1999 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET) dainiki kenkyu kaihatsu. Task 1. System hyoka ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

With the aim of formulating a strategy for introducing hydrogen, assessment was carried out on the energy consumption, environmental impacts and cost effiectiveness concerning various hydrogen utilization systems. In regard to soda-electrolysis by-product hydrogen and coke-oven by-product hydrogen, hydrogen supply capacity and cost effectiveness were evaluated. As a result, the two systems were found to have an annual hydrogen supply capacity of 11.52 GNm{sup 3} in total. As to the cost effectiveness, transportation by pipeline was 34 yen/Nm{sup 3}-H{sub 2} in the case of soda-electrolysis by-product hydrogen, and 40 yen/Nm{sup 3}-H{sub 2} in the case of coke-oven by-product hydrogen. An estimated cost of power generation showed 56 yen to 67 yen/kWh in such a system on remote islands as replacing diesel power generation by wind power generation, storing part of the electric energy produced in the form of hydrogen through water electrolysis, and using it as fuel for power generation by the fuel cell unit if wind conditions are unfavorable. Power generation cost on remote islands at present is sometimes in excess of 50 yen/kWh; therefore, this combined system showed promising results. The cost of using wooden biomass was estimated to be 51,000 yen/TOE , whose competitiveness is uncertain. (NEDO)

FY 1999 report on the potential survey of the environmentally friendly type coal utilization system - Dispatch of engineers. A. Project for supporting the introduction of the environmentally friendly type coal utilization system (model project)/pre-survey for the potential survey; 1999 nendo kankyo chowa gata sekitan riyo system kanosei chosa. Senmomka haken A. kankyo chowa gata sekitan riyo system donyu shien jigyo (model jigyo) - Kanosei chosa no jizen chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of the improvement of coal utilization technology and environmental preservation, the paper conducted the pre-survey of the introduction of coke oven gas desulfurization facilities in China and pre-survey of potentiality of the environmentally friendly type coal utilization system in India. The pre-survey in China was made for Anyang Steel Group Co. Ltd. and Laiwu Steel Group Co. Ltd. to judge their adaptability as site for the demonstrative project on the introduction of coke oven gas desulfurization facilities. As a result, it was confirmed that the former satisfied the conditions on Japan side such as the space for installation and prospect for fund raising. However, the amount of COG treatment was larger than that planned at Japan side, and it was found that as to the recovered sulfur, the company wanted the solid sulfur different from the fused sulfur planned at Japan side. In the survey in India, explanations were made to India of CFBC and the fluidized bed cement sintering system, bio-briquette production facilities, facilities for environmental measures, coal reforming technology, etc. At the same time, the site survey was made to examine/analyze possibilities of spread/development of Japan's CCT. (NEDO)

Fiscal 1998 intellectual infrastructure project utilizing civil sector functions. Development of systems for marine organism resources classification and utilization (Achievement report); 1998 nendo kaiyo seibutsu nado shigen no bunrui riyo system no kaihatsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Genetic resources and databases involving microbes and the like were conserved and amplified for the reinforcement of biotechnology industries. In the maintenance of marine microalga culture collection, 16S rDNA sequences were determined for 120 strains of Cyanophyceae isolated by Marine Biotechnology Institute Co., Ltd., and databases were prepared containing the results of molecule classification, history of each strain, and pictures obtained using optical microscopes. In the maintenance of marine bacterium culture collection, methods for identifying by molecule classification bacteria separated from the sea were simplified and unified, and genera were identified for 776 strains. In the development of systems for classifying and conserving subtropical microbial resources, base sequences were analyzed for 14 strains of six kinds of microbes such as Aspergillus awamori conserved at Institute of Applied Microbiology of University of Tokyo. Other efforts included the enrichment of marine microalga collections, construction of an embryo bank system, advanced classification of microbes, and development of a DNA (deoxyribonucleic acid) analyzing system. (NEDO)

Report on the FY 1999 survey for making a data book related to new energy technology development. Trends of solar energy utilization, waste power generation, clean energy vehicle, geothermal power generation, clean coal technology, other new energy technology and new energy technology development; 1999 nendo shin energy gijutsu kaihatsu kankei data shu sakusei chosa hokokusho. Taiyonetsu riyo, haikibutsu hatsuden, clean energy jidosha, chinetsu hatsuden, clean coal technology, sonota no shin energy gijutsu, shin energy gijutsu kaihatsu kanren doko

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The paper collected/arranged the most up-to-date data made public in the new energy technology field. As to the solar energy utilization, the utilization is on the decrease with the beginning of the 1980s as a peak, and the solar systems introduced in FY 1998 totaled 15,000 and the water heaters 56,000. The waste power generation is showing a steady growth both in the general use and in the industrial use, and the introduction of 5 million KW is expected for FY 2010. The sale of the hybrid car started at the end of 1997, and the subjects are the price/performance/fuel supply system. Concerning the geothermal power generation, 497,000 KW and 36,000 KW were introduced for business use and non-utility use, respectively. Japan ranks sixth among nations of the world. Relating to the coal liquefaction, the pilot plant (PP) of Japan's original bituminous coal liquefaction NEDOL process finished operation in 1998, and the construction of technology package, international cooperation, etc. are being conducted. About the coal gasification, the construction of demonstrative equipment and operation are planned during FY 2002 - FY 2007, making use of the PP achievements of IGCC. In regard to the biomass-based waste power generation, the lignocellulose system is large in potential quantity. As to the hydrogen energy, the WE-NET project entered Period II. With respect to the ocean thermal energy conversion, the demonstrative study started. In relation to the wave power generation, a small size of approximately several hundred W was commercialized. (NEDO)

Report for fiscal 1998. Joint research of environment-friendly system for effectively utilizing water resources; 1998 nendo hokokusho. Kankyo taiogata mizushigen yuko riyo system ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The research is conducted in cooperation with Industrial Technology Development Institute of the Philippines, and aims to solve water related problems such as unstable water supply and water quality pollution though developing a waste water treatment and recycling system which is easy to operate and maintain, low in cost, and usable in the Philippines. Fiscal 1998 is the second year of the project. Statistics are studied about the load that each industrial branch imposes on water for its pollution, and it is found that food manufacturers, paper pulp mills, and fiber dyeing plants are heavily responsible for water pollution. A method consisting of single-tower UASB anaerobic treatment and activated sludge treatment is applied as a water treatment process to Ram Food Products Corporation, and its optimization is studied. A removal rate 60% is achieved after a 12-hour treatment period at a COD (chemical oxygen demand) rate of 8g/liter/day. A method consisting of coagulating sedimentation and activated sludge treatment is applied to the waste water from a Solid Mill Corporation dyeing plant, when it is found that the water after ultimate treatment is almost colorless and that COD is 76mg/liter and BOD (biological oxygen demand) 13mg/liter, and these suggest that the waste water is recyclable. Since it is low in COD removing rate, the application of anaerobic treatment to high-concentration water after washing is not appropriate. (NEDO)

FY 1998 Report on development of large-scale wind power generation systems. Research of wind turbines for storm worthy and easy construction; 1998 nendo ogata furyoku hatsuden system kaihatsu. Taikyofu kensetsu yoigata fusha ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The research and development statuses in various countries are surveyed, to have useful information to draw the future R and D directions for wind turbines resistant to storms and easy construction. Greece has sites suitable for wind power generation in mountainous districts, and is developing the systems while taking the characteristic weather conditions into consideration. The country provides information regarding aerodynamic/structural design methods for wind turbine blades applicable to turbulent wind generated by complex terrain, and wind assessment and analyses in complex terrain. In India, on-the-spot surveys are made at the cyclone-attacked wind farms. One of the areas on which the USA is putting emphasis is development of small-size wind turbines and wind-diesel hybrid systems for developing countries and independent grid systems in remote areas. Australia is constructing wind-diesel hybrid systems to be connected to a number of independent grid systems in its western area. In Europe, information is collected for the advanced aerodynamic analysis, construction of offshore wind turbines, and production engineering and facilities for blades and other components from Vestas and N.E.G. Micon as the leading wind turbine makers. (NEDO)

FY 2000 project on the research cooperation for the environmental response type water resource effective utilization system; 2000 nendo kenkyu kyoryoku jigyo. Kankyo taiogata mizu shigen yuko riyo system ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

For the purpose of prevention of water pollution, stable water supply in the Philippines, etc., developmental study was made of a waste water treatment/water recycling system, and the FY 2000 results were summed up. In the operational study of Pilot Plant 1, for the waste water in the papermaking process of used paper recycling plant, development was studied of a waste water treatment/water recycling system. There occurred problems on minuteness, outflow, etc. of anaerobic granules, but those were caused by malfunction of SS removal equipment at plant side. The problems were solved by increasing flocculation/precipitation facilities. As to Pilot Plant 2 of which the R and D are planned to be started in April 2001, the food processing plant was surveyed for study, and SYSCORE was selected. Relating to the waste water treatment test of Pilot Plant 2, researchers of the Industrial Technology Development Institute (ITDI) of the Philippines conducted it under the guidance of the experimental data analysis. Besides, the paper carried out the training for technology spread/acceptance, technology spread seminar, support study in Japan, etc. (NEDO)

Research and development of technologies for CO{sub 2} fixation and effective utilization thereof, etc., in fiscal 1998. Report on research and development of technologies for the effective use of CO{sub 2} by virtue of contact hydrogenation (CO{sub 2} separation and recovery system of the next-generation type); 1998 nendo nisanka tanso koteika yuko riyo gijutsu nado kenkyu kaihatsu jigyo. Sesshoku suisoka hanno riyo nisanka tanso yuko riyo gijutsu kenkyu kaihatsu jigyo kenkyu kaihatsu jigyo (jisedaigata shoene CO{sub 2} bunri kaishu system ni kansuru chosa kenkyu hokokusho)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Researches were conducted for the goal of proposing a totally new process enhanced in efficiency and energy saving, and capable of CO2 separation. In fiscal 1997, hydrocarbon materials were reformed by oxygen separated within a system allowing fuel cells to generate power efficiently, when all the emitted CO2 was separated and recovered within the system. Furthermore, cold heat was utilized for the acquisition of liquefied CO2 gas products. A part of oxygen separated at the fuel cell cathode was recycled into the combustion section external to the tubular reaction reformer, and CO2 was separated by mere cooling from the combustion products for the simultaneous production of by-products such as high-purity nitrogen gas and liquefied CO2 for a great improvement in economy. In fiscal 1998, the system was improved. Proposed then was a new system in which an oxygen partial oxidation type reformer assumed the nuclear role, separating all the oxygen at the cathode, reusing part thereof for oxygen enrichment, and feeding the rest thereof into the reformer. The design realized the recycling of the whole of the products of the two cell electrodes into the reformer for the maximum reuse of the products of the hydrogen/oxygen separation function. (NEDO)

Performance evaluation of solar heating system with thermal core type soil heat storage. Part 5. Performance prediction and evaluation of the system considered of the weather condition; Taiyonetsu riyo netsu kakushiki dojo chikunetsu system no seino hyoka. 5. Kisho joken wo koryoshita system no seino yosoku to hyoka

Energy Technology Data Exchange (ETDEWEB)

Yoshida, N [Nishimatsu Construction Co. Ltd., Tokyo (Japan); Nakajima, Y [Kogakuin University, Tokyo (Japan)

1997-11-25

The paper studied a solar heating system with thermal core type soil heat storage (combining a thermal core composing of a water tank and an underground pebble tank and the soil around the heat storage tank and also using solar energy). Solar energy is stored by temperature level in the high temperature water tank, the low temperature pebble heat storage tank and the soil around the heat storage tank. Heat is recovered according to temperature as direct ventilation space heating (utilization of pebble tank air), floor heating (utilization of hot water of the heat storage water tank) and heat pump heat source (utilization of pebble tank air). A study was made of performance and regional effectiveness of the system under different weather conditions. A study was also made of effects of the water tank for short term heat storage by changing the water volume. Using the same structure, etc. for the system, the system was evaluated using weather data of Sapporo, Tokyo and Kagoshima. In terms of efficiency of the system, the system structure was found to be most suitable for weather conditions in Tokyo. However, the air heat source heat pump which cannot be usually used in the cold area has come to be used. Such effect except efficiency is also considered, and the amount of performance to be targeted in each region changes. 2 refs., 14 figs., 1 tab.

FY 1999 Report on the technical results. Part 2-1. Development of fuel cell power generation technologies (Research and development of molten carbonate fuel cell power generation system); 1999 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. 2-1. Yoyu tansan'engata nenryo denchi (hatsuden system no kenkyu kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-05-01

This research and development project is aimed at modification and improvement of the stacking technologies, to improve service life and performance of the molten carbonate fuel cell power generation system and reduce its cost. For the cross-flow type stack, optimization of the anode firing conditions leads to controlled reduction of the fine pores, and incorporation of the cathode with MgO successfully leads to controlled elution of NiO and Ni short-cut. For the separator, the service life is extended by treatment of the material with Al and controlling its rigidity. The cell life prediction method is improved to enhance its accuracy. The cell life of -4.3mV/1,000h is achieved by these technologies. For the parallel-flow type stack, the electrodes are improved to achieve the cell life of -1.4mV/1,000h, the technologies for producing the separator for a 1m{sup 2} class unit are developed, and the basic structures of a large-capacity stack are designed. For the internal reforming type, a 200kW class reforming stack is constructed, and operated for 5,259 hours. The causes for electrolyte loss are analyzed by developing the relationships between operating temperature and electrolyte loss, electrolyte mass and sustainability of the cell characteristics, and steam partial pressure over the cathode and electrolyte loss, and also by testing the Ni short-cut. (NEDO)

Research cooperation project in fiscal 2001. Research cooperation on putting into practical use of district complying type photovoltaic power generation system; 2001 nendo kenkyu kyoryoku jigyo. Chiiki tekigo gata taiyoko hatsuden system tou no jitsuyoka ni kansuru kenkyu kyoryoku

Energy Technology Data Exchange (ETDEWEB)

NONE

2002-03-01

Research cooperation has been performed with an intention of establishing technologies to develop a design program for photovoltaic power generation systems suitable for the diverse natural and social conditions in China, the performance inspections and quality enhancement thereon. This paper summarizes the achievements in fiscal 2001. For installing the photovoltaic power generation system, procurement, transportation and installation were carried out in Gansu Province for a 8.4 kW integrated system and in Qinghai Province for 10 kW and 12 kW integrated systems. Visits were made to the sites to confirm the operating conditions, and maintenance and management conditions of the systems having been installed to date. With regard to performance evaluation devices of the cells and modules, some pieces of the equipment were repaired and re-adjusted, and training for using them was executed. Eight persons have visited Japan from China and participated in the training in Japan for utilization and operation of the photovoltaic power generation systems for the persons involved in the system operation. In addition, in order to determine the future information exchange directions, workshops were held with PV experts and manufacturers participating from Japan to exchange items of information. (NEDO)

Rearrangement of land and water use system in polder and drainage improvement. Kantakuchi no tochiter dot mizu riyo taikei no saihensei to haisui kairyo

Energy Technology Data Exchange (ETDEWEB)

Mitsuno, T; Nagahori, K [Okayama Univ., Okayama (Japan). Faculty of Agriculture; Yamamoto, T [Ministry of Agriculture, Forestry and Fisheries, Tokyo (Japan)

1991-09-01

Polders have no basin of their own, and the supply of irrigation water in polders is always short and unstable. The irrigation water system is so structured that the conflicting objects of both the insurance of irrigation water and drainage of rainwater can be achieved. Quoting an example at the surrounding area of the Kojima Bay in the southern area of Okayaja Prefecture where inning (land reclamation by drainage) has been practiced for a long time, problems in drainage improvement required for better use of low-lying flat lands are discussed. There are complicate relations among the safety against flood, rainwater drainage capability, stock capacity, and critical leveling time, therefore, the basic operation which must be performed at first in making a drainage plan is to determine the basic framework of the plan taking those relations into consideration. In low-lying flat lands, safety of the total area against flood has been established basing on the stock capacity of the paddy fields, and it is important to secure paddy field areas to a certain extent. 8 refs., 7 figs., 1 tab.

FY1995 study of highly efficient power generation system based on chemical-looping combustion; 1995 nendo chemical loop nenshoho ni yoru kokoritsu hatsuden system no kaihatsu ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Synthesis of highly efficient and low emission power generation plant with chemical-looping combustion using various fuels such as natural gas, coal gas and hydrogen. Development of new looping materials with suitable reactivity, regenerative ability, and avoidance of carbon deposition. To obtain the design data for demo-plant by using the current experiment high- pressure fixed bed reactor. From the viewpoint of application of the proposed power generation system with chemical-looping combustion, the following main results were obtained. 1. New looping materials: NiO/NiAl{sub 2}O{sub 4}, CoO-NiO/YSZ, and Co{sub 3}O{sub 4}/CoAl{sub 2}O{sub 4}. These materials have high reactivity, repeatability, and avoidance of carbon deposition which play important roles in application of this new combustor. 2. NO{sub x} formation can be completely avoided; both fuel NO{sub x} in reduction reactor for coal gas as fuel and thermal NO{sub x} in oxidation reactor. 3. It is identified from the experiment using fixed bed reactor with the elevated pressure that NiO/NiAl{sub 2}O{sub 4} is a suitable material for coal gas or hydrogen. These promising results have provided valuable data for industrial application. (NEDO)

FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the purpose of establishing the technology to use high grade functions of the bioconsortia system, the R and D were conducted, and the FY 1998 results were summed up. As to the study of functional material producing technology, screening of the 2400 strains owned by Marine Biotechnology Institute was conducted using reporter strain, and about 400 strains of homoserine lactone producing bacteria which are interbiological information convey substances were obtained. Concerning the effective decomposing/purifying technology of petroleum products, study of petroleum decomposition analysis technology was finished in the development of culture/control technology of petroleum decomposition microbial consortia constitutive bacteria. Relating to the analysis of the petroleum decomposition microbial consortia, changes in the bacteria population at the site of the heavy oil pollution accident on the Sea of Japan were investigated for the past one year by the PCR/DGGE method. It was found out that levels of the oil pollution in ocean could be assessed by measuring the concentration of Alcanivorax. As to the technology for highly utilizing unused petroleum fractions, conducted were the chemical analysis of photolytic crude oil, selection of the decomposition microbial consortia, etc. (NEDO)

Effective utilization technology of carbon dioxide. CO sub 2 no yuko riyo gijutsu

Energy Technology Data Exchange (ETDEWEB)

Ibusuki, T. (National Research Inst. for pollution and Resources, Tsukuba (Japan))

1991-03-12

As carbon dioxide-related environmental measures, method was explained to chemically convert and utilize carbon dioxide. Synthesis is possible of methanol, carbon monoxide, different carbohydrates, etc. by catalytic hydrogenation of carbon dioxide, using hydrogen produced by the electrolysis of water. Task consists of heightening in both convertibility and selectivity, and abundant supply of low cost hydrogen. Methane, alcohol, etc. can be synthesized by electrochemical reducion of carbon dioxide. Because of effectively inserting multiple electron, discssion is being made of catalyst, intergrated with electrode, and electron transmitter. The photoelectrochemical reduction of carbon dioxide can be also made by utilizing photoelectric current, generated upon photoradiation on the semiconductive electrode. However, task consists of heightening in both efficiency and selectivity. Photochemical reduction of carbon dioxide, actually made by green plant, consists of oxidationlike decomposition of water and reduction of carbon dioxide. Both those reactions are skillfully separated by intermediation of very quick electron transmission system. Reduction is being studied with semiconductor, metallic colloid, enzyme, metallic complex and other various catalysts. 10 refs., 3 figs., 4 tabs.

Reduction mechanism of dynamic loads on down wind rotor; Furyoku hatsuden system down wind rotor no doteki kaju no keigen kiko ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Seki, K; Shimizu, Y; Yasui, T [Tokai University, Tokyo (Japan)

1997-11-25

Dynamic force on blades in a large wind mill changes with rotational speed for various reasons, such as wind shear that causes vertical distribution of wind velocity or titling angle. Therefore, a 2-blade system on a teetered hub is a practical selection for the coned, down-wind type. Use of teetered axis greatly reduces bending moment in the flap direction and that at the axis of rotation. An attempt was made to understand dynamic loads by inertial force resulting from oscillation of the blade rotating on the teetered axis, and thereby to avoid them. The in-plane load can be diminished to zero when the teetered axis is coincided with the center of gravity, but generally cannot be avoided when the blade is strained significantly, except it is operated at the rated condition. The in-plane load and bending moment can be avoided, when rotational freedom is given around the y axis. Dynamic load on a down-wind rotor can be avoided by use of universal joint. 3 refs., 6 figs.

Research and development of evaluation system for photovoltaic power generation system. Research and survey on test and evaluation method for BOS component devices; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. Shuhen gijutsu hyoka system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the study results on R and D of the evaluation method for BOS component devices in fiscal 1994. (1) On the study on requirements of BOS component devices for practical use, the study results on storage battery, inverter, protective device for system interconnection, and effective use means for storage battery were summarized. On the future device technology, it was clarified that the following value added technologies are promising: simple design of inverter circuit, cost reduction by common specification and mass production, and stabilization of voltage and compensation of momentary peak load by combining inverter with small-capacity storage batteries. (2) On the study on the performance test method for BOS component devices, basic characteristic (capacity, efficiency) test, PSOC charge/discharge cycle test, and accelerated life cycle test were performed for 4 kinds of new storage batteries developed by NEDO. The whole characteristic test results satisfied specifications, and long-term cycle test is in promotion for all new storage batteries. 3 figs., 4 tabs.

FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the purpose of developing the industrial utilization technology, analysis was made of functions and interactions of the specified functional biological groups, and at the same time the developmental study was made of the technology to isolate/culture the constitutive biological groups. The FY 1998 results were summed up. As to the technology to detect microorganisms in soil, the SFDA method was improved and the new dyeing method was developed. And, there almost was hope for the development. Concerning the functional analysis technology, the functional substances peculiarly manifested only in the complex system in the ocean environment are searched. Several kinds of compounds were found out, and at the same time the test to confirm the biological activity is under way. Relating to the isolation/culture technology, study was made on rotten fruit, and the existence in the sample of the microorganisms which are difficult in isolation/culture was newly confirmed. In regard to the culture of the microorganisms which are difficult in isolation/culture, availability of the replica method was found out. As to the technology to produce functional substances, studies were made on the following: utilization technology of the environmental harmony type oil/water separation polymer producing microbial consortia, method to artificially make gene exchanges in the microbial consortia, etc. (NEDO)

FY 1999 report on the results of the project on the industrial science technology R and D. Development of utilization technology of biological resources such as bioconsortium system (Development of the bioconsortium system utilization/production technology); 1999 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugou seibutsukei tou seibutsu shigen riyo gijutsu kaihatsu (Fukugou seibutsukei riyo seisan gijutsu no kaihatsu) seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of developing the functional substance production technology, petroleum degrading/cleaning technology and high-grade utilization technology of the unused petroleum fraction, study was conducted of the culture control technology in substance production and substance decomposition by bioconsortia, and the FY 1999 results were reported. As to the functional material production technology, study was made of the separation/culture technology, functional substance production technology using bioconsortia (control substance searching method in the ocean microbial consortia system, isolation of control substance/structure determination/separation of production bacteria, elucidation of the inter-species communication substance function, heightening of function of the production microbial consortia), etc. Concerning the effective degrading/cleaning technology of petroleum compounds, study was made of the molecular genetic analysis technology, histochemical analysis technology, analysis technology of the solvent resistance mechanism, bioconsortia analysis system technology, global environmental purification technology such as the effective decomposition of environmental pollutants, etc. Relating to the high-grade utilization technology of the unused petroleum fraction, study was made of the chemical analysis of the photolysis crude oil, selection of the decomposition microbial consortia, etc. (NEDO)

Achievement report for fiscal 2000. Phase II research and development task-5 for hydrogen utilizing international clean energy system technology (WE-NET) (Development of hydrogen fueled automobile system); 2000 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET) dai 2 ki kenkyu kaihatsu. Task 5. Suiso jidosha system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This paper describes the achievements in fiscal 2000 from the WE-NET Phase II for Task-5, the development of a hydrogen fueled automobile system. For a fast filling method using a hydrogen absorbing alloy as the fuel tank, a rare earth system, the Laves system, and a body-centered cubic system were selected to discuss filling time when the plate-fin system tank and the divided system tank are used. Either system was found capable of filling 80% of the effective hydrogen absorbing amount within 10 minutes, having achieved the target. Guidelines were obtained for the design aiding method by using the cooling water flow rates, temperatures, and simulations. In the safety assessment, even the spontaneously combusting alloy of Category 1 in the Fire Fighting Law did not cause ignition even if the tank was damaged and the alloy was discharged in the dropping/falling weight tests. It was inferred that the ignition temperature is not reached because of the self-cooling made when hydrogen is discharged from the alloy. In the fire resistance test, the tank temperature was found not to rise as long as hydrogen is discharged from the alloy. Since the temperature rise and damage could occur if the discharge has been finished completely, discussions are required on materials and the soluble plug. Deformation may occur in the initial stage of the hydrogen absorbing and discharging cycles, but it would not occur after 5,000 cycles. (NEDO)

1998 report on development of high-efficiency waste power generation technology. 2. Development of waste gasification and ash melting power generation technology; 1998 nendo kokoritsu haikibutsu hatsuden gijutsu kaihatsu seika hokokusho. Haikibutsu gas ka yoyu hatsuden gijutsu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In regard to waste gasification and ash melting power generation, a basic test and examination were conducted in fiscal 1998, with a full-scale development test made ready to start. In the development of technology for raising steam temperature, evaluation of high temperature corrosivity of SH materials and development of high-temperature dust removal system were carried out for example, as were development of dechlorination technology for thermal decomposition process and development of ceramic high-temperature air heater. In the development of technology to prevent exhaust gas reheating, preliminary examination was made on denitrification technologies using a catalyst with superior low-temperature activity. In the development of technology to reduce self-heat melting critical calorific value, investigation and basic test were carried out concerning a stable waste feed system, with a pilot test device experimentally manufactured and tested based on the findings. In the development of technology for reducing external fuel input, examination and analysis were performed on pretreatment techniques for waste plastics, with basic data obtained for a waste blowing system project. In addition, the thermal decomposition and combustion characteristics of waste plastics were clarified by the basic test. (NEDO)

Survey on the feasibility of high-efficiency gas turbine power generation system; Kokoritsu gas turbine hatsuden system ni kansuru jitsuyo kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

For higher-efficiency power generation cycle plants with less restrained conditions for a location, the conceptual design of an inter-cooled regenerative two-fluid cycle plant (ISTIG) was attempted using a modified aircraft gas turbine. A high-performance turbo fan engine is used for middle-class power generation. The first stage combustion gas drives the first stage turbine, and its exhaust gas is used for the second stage combustion. Because of two-axial type of high and low pressure, improvement of thermal efficiency is expected by easy-to-install inter-cooler. ISTIG superior in operability is suitable for medium load or distributed power generation facilities, and aims at higher efficiency of a 60% level. ISTIG includes a large amount of water vapor in combustion air by adopting a diffusion type combustor eliminating back fire, and can reduce exergy loss by preheating fuel gas. Since load of the high-pressure turbine shifts toward low-pressure one by the inter-cooler, some considerations are necessary for low-pressure side cooling together with reheating cycle. Because of unnecessary steam turbine, the construction cost per kW can be reduced by 20%. 41 refs., 64 figs., 27 tabs.

Hybrid utilization of solar energy. Part 2. Performance analyses of heating system with air hybrid collector; Taiyo energy no hybrid riyo ni kansuru kenkyu. 2. Kuki shunetsu hybrid collector wo mochiita danbo system no seino hyoka

Energy Technology Data Exchange (ETDEWEB)

Yoshinaga, M; Okumiya, M [Nagoya University, Nagoya (Japan)

1996-10-27

For the effective utilization of solar energy at houses, a heating system using an air hybrid collector (capable of simultaneously performing heat collection and photovoltaic power generation). As the specimen house, a wooden house of a total floor area of 120m{sup 2} was simulated. Collected air is fanned into a crushed stone heat accumulator (capable of storing one day`s collection) or into a living room. The output of solar cell arrays is put into a heat pump (capable of handling a maximum hourly load of 36,327kJ/h) via an inverter so as to drive the fan (corresponding to average insolation on the heat collecting plate of 10.7MJ/hm{sup 2} and heat collecting efficiency of 40%), and shortage in power if any is supplied from the system interconnection. A hybrid collector, as compared with the conventional air collector, is lower in thermal efficiency but the merit that it exhibits with respect to power generation is far greater than what is needed to counterbalance the demerit. When the hybrid system is in heating operation, there is an ideal heat cycle of collection, accumulation, and radiation when the load is light, but the balance between accumulation and radiation is disturbed when the load is heavy. 4 refs., 8 figs., 3 tabs.

Achievement report for fiscal 1999 on project for supporting the formation of energy/environmental technology verification project. International joint verification research project (Use of combined binary power generation systems at new geothermal fields on Mindoro Island, the Philippines, and comparison with conventional power generation systems); 1999 nendo Philippines koku Mindoro to no shinki chinetsutai ni okeru combined binary hatsuden hoshiki no tekiyo seika hokokusho. Conventional hatsuden hoshiki tono hikaku kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Concerning the Manito Lowlands geothermal field and the Montelago geothermal field where the systems are to be newly installed, the geothermal reservoir characteristics are assessed, and cost effectiveness is compared between different power generating systems. According to the investigations conducted into the two geothermal fields in the past, they are supposed to have geothermal potentials of the medium grade. Chemical analyses are conducted anew on this occasion into the hot spring water and fumarole gas, and the MT (magnetotelluric) method is implemented for the survey of reservoir distribution. It is now expected that approximately 20MWe will be exploited from each of the two geothermal fields. The power generation systems studied are the single flash type and double flash type for the conventional power generation system, and the cascade type, bottoming type, and two-phase binary type for the combined binary power generation system. As the result, it is concluded that the double flash type or two-phase binary type will be advantageous to the Manito Lowlands geothermal field, and the double flash type or bottoming type or two-phase binary type will be advantageous to the Montelago geothermal field. (NEDO)

Fiscal 1995 survey of promotion of the geothermal development. Report on a usage feasibility test of a small scale geothermal binary cycle power generation system; 1995 nendo chinetsu kaihatsu sokushin chosa. Chusho chinetsu binary hatsuden system jissho shiken hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

In this survey, studies for popularization and practical utilization of small and medium size geothermal binary cycle power systems which assesses low and medium temperature geothermal resources were conducted, and studies for development of the system to be introduced for practical use and for promotion of the popularization were made. A study was carried out of preconditions and various conditions of a demonstrative test plant (100kW class, 500kW class) in view of the initial cost of the actual plant, and an analysis was made of the power generation cost. Acceptability of the demonstrative test plant (100kW class) was examined to analyze problems on the introduction. A thermodynamic analysis was made of the output of geothermal binary cycle power generation. Analysis/evaluation of the results of the 100kW demonstrative test plant were carried out in view of the operation results of the plant of the same kind, and checks/reviews were conducted of performance and reliability of the system, equipment simplification, etc. Inspection of the system was made in the stage of design/manufacture of the 500kW demonstrative test plant. Concerning the spread/expansion of the system, studied were multiple stage geothermal utilization and PR promotion method. 14 refs., 62 figs., 55 tabs.

Prospects to solar energy power generation in space. Uchu taiyo hatsuden eno tenbo

Energy Technology Data Exchange (ETDEWEB)

Kudo, I. (Electrotechnical Laboratory, Tsukuba (Japan))

1993-05-01

Solar energy power generation in space uses large arrays of solar cells developed on a geosynchronous orbit to obtain electric energy, which is transmitted to the earth using microwaves. The idea had already been advocated in 1968, which was followed a decade later by joint discussions done by NASA and DOE. The concept intended to take care of the U.S. power demand by using 60 power plant satellites, each having an output of 5 GW. This expanse of the scale, regarded reasonable even today, calls for the solar cell arrays in space spreading over an area of 10 km [times] 5 km if silicon solar cells with a conversion efficiency of 15% are used, and rectenna on the ground (a received wave converting facility) forming an ellipse of 10 km [times] 13 km (assuming a location at the north latitude of 36[degree]). Although there are a number of problems in the idea such as transportation means to lift construction materials into the space and effect of microwaves on the ionosphere and the ecosystems, the Agency of Industrial Science and Technology organized a 'committee for investigating and studying the space power generation systems' in the fiscal year 1991, and has been moving discussions forward since then. 7 refs., 5 figs.

Annual cycle solar energy utilization with seasonal storage. Part 8. Study on periodic steady state of the annual cycle energy system at a practical operation; Kisetsukan chikunetsu ni yoru nenkan cycle taiyo energy riyo system ni kansuru kenkyu. 8

Energy Technology Data Exchange (ETDEWEB)

Tanaka, H; Okumiya, M [Nagoya University, Nagoya (Japan)

1997-11-25

A study was made of the periodic steady state of the annual cycle solar energy system with seasonal heat storage at a practical operation. Cold heat in winter and warm heat in summer are stored in the seasonal storage tank, and these are each used in shift until when demand for cold/warm heat appears. Moreover, gap in quantity of cold/warm heat going in/out of the heat storage tank during a year is filled by natural energy such as solar energy, so that the system can be operated in annual cycles. Studies were conducted of the periodic unsteady term and the problem on lowering of performance during the term such as the periodic unsteady term of water temperature inside the seasonal heat storage tank and temperature of the soil around the storage tank, and the level of lowering of performance during the term, necessity of additional operation/control at the start of operation and aged deterioration of the system. Within the assumption, even if starting operation in any time of the year, the system could show the performance almost expected from the first operation year with no additional system operation and control required only at the start of operation. It is thought that the heat source selection control of heat pump largely contributes to this. 4 refs., 5 figs., 3 tabs.

Fiscal 1980 Sunshine Project research report. Development of hydrothermal power plant. Development of binary cycle power plant (Research on heat cycle, heat medium, material and heat medium turbine); 1980 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (netsu cycle oyobi netsubaitai no kenkyu, zairyo no kenkyu narabini netsubaitai turbine no kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1981-03-01

This report summarizes the fiscal 1980 research result on each element of the next 10MW class geothermal binary cycle power plant, following last year. In the research on heat cycle and heat medium, measurement was made on the liquid density, vapor density, liquid specific heat, vapor specific heat and thermal conductivity of 8 heat media to prepare the precise pressure enthalpy chart. The thermal stability of each medium was also measured under a flow condition. The heat cycle of each medium was calculated in a hydrothermal temperature range of 120-160 degrees C for evaluation of its output. In the research on material, field corrosion test and laboratory simulation were made on 3 kinds of heat exchanger martials for acidic hot water to study the corrosion behavior of welding members. In the research on heat medium turbine, study was made on sealing characteristics such as differential pressure, flow rate and friction of sealing oil for oil film seal and mechanical seal as shaft seal devices of heat medium turbines for the 10MW class geothermal plant. (NEDO)

Research and development of utilization technology of solar thermal energy system for industrial and other use. International joint technology development for solar energy utilization systems; Sangyoyo nado solar system jitsuyoka gijutsu kaihatsu. Taiyo energy riyo system kokusai kyodo gijutsu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Takita, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

Described herein are the results of the FY1994 research program for international joint technology development for solar energy utilization systems. The joint study with an Indonesian research institute takes a model of lumber drying plant for the design and feasibility study. All the parts it needs are technically available in Indonesia, except carbon fiber sheets and electronic devices for controlling purposes. The drying cost is higher than that of a plant which procures charge-free wood fuel, but lower than that of a plant which procures fuel at 30$/t. A cacao drying plant model is also studied. The feasibility study shows that the initial investment for the blowing-up model is much higher by 60% to 100% than that for the conventional plant. Its fuel cost is lower by 11% than that of residual oil but 27% higher than that of wood. 4 figs.

Report on achievements in proliferation project to introduce environment harmonizing type coal utilization system in fiscal 1998. Joint demonstration project for CMG recovery and utilization system in fiscal 1998; Kankyo chowagata sekitan riyo system donyu shien nado fukyu taisaku jigyo. 1998 nendo CMG kaishu riyo system kyodo jissho jigyo seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-09-01

This paper describes the discussion report for fiscal 1998 on the CMG (coal methane gas) recovery and utilization project to be implemented from fiscal 1998 through fiscal 2002 at Tiefa Mining Bureau of Liaoning Province in China. The Daixing mine was selected as the survey object. The introduced technologies and facilities include test drilling for degassing (medium measure horizontal degassing of 300-m class), induction from degassing holes, fly ash sealing, sealed gas degassing, surveillance and control technologies and facilities. The recovered gas is to be supplied to the cities of Tiefa and Tieling as town gas, for which compressed gas feeding and controlling technologies and facilities will be introduced. This paper lists the gush-out quantity (1,000 Nm{sup 3}), the recovery quantity (1,000 Nm{sup 3}), the recovered gas concentration (%), the utilization quantity (1,000 Nm{sup 3}), and the utilization rate (%). The figures for the respective items before and after the implementation are 128366, 32949, 44.5, 7000, 5, 123500, 43890, 49.1, 39826, and 32. The quantity of gas gushing out at facings decreases in association with increase in the recovered gas quantity, whereas the gas concentration at facings in the Daixing mine in 2003 is estimated to decrease to 0.1%, contributing to safe mining operation. The test drilling for medium measure horizontal degassing expands the degassing assured scope per one test drilling seat, and can reduce the total test drilling length and construction amount. (NEDO)

Development and utilization of liquid quartz light modulating film. Ekisho choko film no kaihatsu to riyo

Energy Technology Data Exchange (ETDEWEB)

Takahashi, M. (Ajinomoto Co. Inc., Tokyo (Japan))

1992-03-01

This paper introduces the polymer dispersed liquid crystal (PDLC) ACT'' sheet, a liquid quartz light modulating film, developed by the Ajinomoto Company in Japan. A mixture of liquid crystal and polymer precursor is sandwiched between polyethylene terephthalate films imparted with transparency conductor made of indium tin oxide (ITO), which is then polymerized by heating or irradiating ultraviolet rays to obtain a PDLC. The film has a thickness as thin as about 0.3 mm, and good processibility. The sheet uses light modulating elements functioning on scatter and permeation of light. Clarification was made on the voltage dependence of cloudiness, total light permeability, straight and parallel light permeability, the response, and the operating voltage. The system consumes small amount of power with a threshold value of about 35V, and is suitable to operate large areas when working on the utility power supply. An incident light having a high diffusion capability when the electric field is turned off exhibits a high clouding function. The system gives an excellent feel of colorlessness and transparency when the electric field is turned on. The performances in heat insulation, infrared reflection capability and noise resistance are expected to be compounded for a functional versatility. 4 refs., 6 figs., 2 tabs.

Development of a wide-area energy utilization network system (research on a technology to design an energy system). FY 1998 report on achievements of research on systematizing ECO and ENERGY cities; Koiki energy riyo network system kaihatsu (energy system sekkei gijutsu no kenkyu). 1998 nendo eko ene toshi no system ka kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

As a research on systematizing ECO and ENERGY cities, surveys and analyses were performed on the actual state of introducing district heat supply systems utilizing difference waste heats including factory waste heat. Waste heat from electric power generation is utilized for district heat supply in Japan at 122 points or about 20% of the district heat supply points in operation as of March 1998. The number is in the increasing trend in recent years, and the future potential of its introduction can be said high as the history thereof is still short. Its introduction form is accounted mostly for by building cogeneration or plant cogeneration. Back-up facilities for the case when waste heat supply stops because of regular facility checks are provided by the heat supply business operators, which impede the economy of the system. In the U.S., the Public Utility Regulatory Policy act motivated installation of cogeneration and off-peak power generation systems for district heat supply. Technical maps (for waste heat sources and different waste heat utilization systems) were prepared based on the surveys to discuss the future measures. (NEDO)

Researches regarding a constructing problem of a PV system. Part 1. Conscious investigation by means of a questionnaire survey; Taiyoko hatsuden system ni okeru kenchikuteki shomondai no kenkyu. 1. Anketo chosa ni yoru ishiki chosa

Energy Technology Data Exchange (ETDEWEB)

Nakajima, Y; Yamazaki, R; Kuroki, T [Kogakuin University, Tokyo (Japan)

1996-10-27

The installation and introduction of photovoltaic power generation systems (PVS) in buildings are growingly expected in the construction field from now, coupled with the marketing of a solar cell module as a product for a construction material in the form of an external wall or a roof material for example. For this purpose, it is necessary at first to summarize problems that may arise at the time of or after the installation of PVS as a product. This paper examines an opinion poll, degree of recognition, current problems, etc., of PVS as a result of a questionnaire survey given to engineers and architects engaged in the actual construction business. The degree of recognition and interest was very high. Consultation or request for PVS installation was much more than predicted in numbers. Roughly 50% of the respondents reacted positively for the future installation request of PVS and, combined with the respondents who answered to look into the installation tentatively, not less than 90% were of a forward-looking opinion. The 85% of the respondents was not aware of the monitor business system for residential PVS. Further, the survey clearly brought out the importance of cost problems. 1 ref., 11 figs., 3 tabs.

FY 1998 industrial technology R and D project. Report on the results of the development of utilization technology of biological resource such bioconsortia system (Development of production technology of biological use petroleum substituting fuels); 1998 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu (seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Technology development was conducted for production of useful substances using the bioconsortia system. In FY 1998, the development of element technology was studied. As to the utilization technology of gut symbiotic microorganisms such as termite and longhorn beetle, clone types of gut microorganism complex system were analyzed to find out the diversification. In the decay of wood, co-culture of two species of mold fungus was increased in efficiency than single culture. More than 90% was classified/identified of the mold fungi accumulated (in wood piece)/separated for the utilization of plant symbiotic microorganisms. For the production of petroleum substituting useful resource, conditions were established of callus induction from immature embryos of tropical oil crops, especially oil palm, and of regeneration of a lot of small plants from the callus. To establish the Agrobacterium-mediated transformation system of oil palm, the binary vector harboring the reporter gene and selectable marker gene was constructed. Using the vector, oil palm tissues are inoculated and infected with agrobacteria. To heighten the function of palm oil, 10 particular clones were selected from the complementary DNA library obtained from oil palm fruit tissues. The genetic study of germs was also made. (NEDO)

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 4. Development of hydrogen production technology; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 4. Suiso seizo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This paper describes development of hydrogen production technology as a part of the WE-NET project. For the solid polymer water electrolysis method higher in efficiency and lower in cost than the previous methods, 5 companies have developed element technologies for improving electrolysis cells and synthesis technologies of hot solid polymer electrolyte based on each proper catalyst electrode production method. In fiscal 1996, the initial study on large-scale systems by middle laboratory cells was made as well as improvement of electrolysis performance by small laboratory cells and endurance tests. Among the previous methods such as a hot press method (bonding of an ion exchange membrane to an electrode), an electroless plating method (preparation of porous surface onto a membrane electrode assembly), a zero gap method (preparation of high-efficiency high-current density cells), and a sintered porous electrode method (carrying of the mixture of catalytic powder and ion exchange resin-dissipated solution onto sintered metallic porous electrode surface), the former two methods were adopted for development of bench-scale cells as effective promising methods. 192 refs., 183 figs., 108 tabs.

Research and development of photovoltaic power system. Interface studies of amorphous silicon; Taiyoko hatsuden system no kenkyu kaihatsu. Amorphous silicon kaimen no kenkyu

Energy Technology Data Exchange (ETDEWEB)

Konagai, M [Tokyo Institute of Technology, Tokyo (Japan). Faculty of Engineering

1994-12-01

This paper reports the result obtained during fiscal 1994 on research on interface of amorphous silicon for solar cells. In research on amorphous solar cells using ZnO for transparent electrically conductive films, considerations were given on a growth mechanism of a ZnO film using the MOCVD process. It was made clear that the ZnO film grows with Zn(OH)2 working as a film forming species. It was also shown that the larger the ZnO particle size is, the more the solar cell efficiency is improved. Furthermore, theoretical elucidation was made on effects of rear face of an interface on cell characteristics, and experimental discussions were given subsequently. In research on solar cells using hydrogen diluted `i` layers, delta-doped solar cells were fabricated based on basic data obtained in the previous fiscal year, and the hydrogen dilution effect was evaluated from the cell characteristics. When the hydrogen dilution ratio is increased from zero to one, the conversion efficiency has improved from 12.2% to 12.6%. In addition, experiments and discussions were given on solar cells fabricated by using SiH2Cl2. 9 figs.

Report on the results of the FY 1998 hydrogen utilization international clean energy system technology (WE-NET). Subtask 7. Survey/study on hydrogen utilization technology; 1998 nendo suiso riyo kokusai clean energy system (WE-NET). 7. Suiso riyo gijutsu ni kansuru chosa kento

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The paper described the results of survey/study of the FY 1998 WE-NET project. In Subtask 7, survey/study have been made on the main hydrogen utilization technologies except the hydrogen combustion gas turbine since FY 1993. Based on the survey results having been obtained, study was made on conditions for introducing promising technology, future prospects, etc. in FY 1998. As to the power generation, the basic combustion test and test on hydrogen injection equipment as element test, and test on ignition equipment were carried out using rapid compression/expansion equipment. A scenario for introducing hydrogen vehicle was made, and at the same time environmental LCA was conducted by which environmental influences can be assessed. The survey of the market of pure hydrogen polymer electrolyte fuel cells were made in terms of the electric utility use, industrial use, residential/commercial use, and movement/vehicle use. Study was conducted on the combined process of oxygen production equipment and He Brayton cycle in the subzero fractionation/low-temperature VSA method. Various methods including performance, price, etc. were surveyed/studied, making it a precondition that hydrogen supply stations are installed in stand-alone distribution near places of consumption. (NEDO)

WE-NET. Substask 4. Development of hydrogen production technologies; 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 4. Suiso seizo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Under the hydrogen-utilizing international clean energy system technology project WE-NET (World Energy NET Work), researches were conducted aiming at the establishment of a hydrogen production technology through electrolysis of polymer electrolyte solution. In fiscal 1998, element technologies were developed for the development of high-efficiency/large-capacity water electrolyzing plants using electrodeless deposition and hot pressing, research and investigation of optimum operating conditions were conducted, and a service plant conceptual design and a polymer electrolytic membrane were developed. In addition, literature was searched for the current state of ion exchange membranes and water electrolysis, both indispensable for the hydrogen production technology discussed in this paper. In the field of lamination of large cells (electrode surface:2500cm{sup 2}), an excellent energy efficiency level exceeding 90% set as the target for a large laminated cell performance test was achieved - 92.6% by electrodeless deposition and 94.4% by hot pressing. As for polymer membranes capable of resisting high temperatures, a membrane with an ionic conductivity of 0.066S/cm at 200 degrees C was newly developed. (NEDO)

Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

This paper describes surveys on trends in overseas technologies in development plans for geothermal water utilizing power plants. In heat cycles, the binary and two-stage flash cycles were analyzed by using a generalized equation of state, and theses on optimizing working fluid properties and cycle conditions with maximum thermal efficiency were described. Theses that were described include those for criteria to select working fluids and thermal power cycles against the binary cycle using a heat source at 104 to 204 degree C. The binary cycle working fluid was found better in mixed systems than in pure systems as seen from process and economic performance. The paper introduces a heat conductivity experimenting device and data required for designing a heat exchanger. It also describes the Heber geothermal experimental plant to demonstrate reasonability of assumed working media. A fluidized bed type and a shell tube type were applied to heat exchangers at the Raft River 50 MW geothermal power plant for comparison and discussion. Fouling factor was also estimated. A discussion was given on fluidity distribution of a fluidized bed heat exchanger. Design of a heat discharge system is important for geothermal power generation because heat source temperatures are so low that more than 85% of heat that has been taken in is discharged. The paper also describes turbines and other facilities. (NEDO)

FY 2000 Feasibility study on the environmentally-friendly coal utilization systems as part of the international project for coal utilization measures. Feasibility study on supporting introduction of the environmentally-friendly coal utilization systems in Vietnam (Model project for introduction of advanced coal preparation systems); 2000 nendo kokusai sekitan riyo taisaku jigyo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa jigyo Vietnam ni okeru kankyo chowagata sekitan riyo system donyu shien jigyo (kodo sentan system donyu model jigyo kanosei chosa jigyo)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-06-01

The feasibility study was conducted on a model project in Vietnam, aimed at solving the environmental pollution problems resulting from use of coal by demonstrating and disseminating the Japan's environmental technologies in the Southeast Asian countries. The feasibility study was conducted for the Cua Ong Coal Preparation Enterprise, which has the largest coal preparation capacity in Vietnam and port facilities. It is treating raw coal from 10 coal mines for classification and preparation, and shipping coal of various types that meet the standards for domestic use and export. The survey results point out that unrecovered coal remains in waste water discharged from the coal preparation plants to pollute the sea area, and that quantity of the refuse increases because of the unrecovered coal it contains. The environmental technologies needed to introduce include modification to variable wave pattern type jigging separator, refuse height measuring instrument and automatic controller, circulating heavy medium gravimeter, highly functional settling pond, and flocculent facilities. (NEDO)

Achievement report on contract research. Large-scale project - Results of 1st-phase research and development of MHD power generation system; Plant system no hyoka. Ogata project dai 1 ki MHD hatsuden system kenkyu kaihatsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

Described in detail involving the results of component development, assessment, and the indication of problems are the power generation channel, superconductive magnets and a helium refrigeration and liquefaction unit, seeds collector, heat exchanger, combustor, etc. Described involving the result and effect of power generation system research and development and the indication of problems is the research on Mark V and Mark VI operation tests. Described in relation to thermal performance calculation, economic effectiveness calculation, and environmental conservation involving an MHD (magnetohydrodynamic) power plant are the combustion of heavy oil, combustion of natural gas, plant having a 1,000MW power generator as its base load, control of NOx and sulfur in MHD power generation, etc. As for planning for the next stage, the configuration of a 10MW MHD power generation plant, its equipment, construction cost, and preliminary element research, etc., are described. Furthermore, propositions are presented concerning future plans and the prospect of commercial MHD power generators, technological ripple effects due to MHD power generation research and development, and research and development in the future. (NEDO)

FY 1989 report on the results of the development of the entrained bed coal gasification power plant. Support study for the development of the entrained bed coal gasification power plant; 1989 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu (Funryusho sekitan gaska hatsuden plant kaihatsu no shien kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1990-05-01

For the purpose of supplying the data necessary for construction/operation/maintenance of system, gas turbine, etc. of the desulfurization/dust removal process to be adopted to a pilot plant of 200t/d entrained bed coal gasification power generation, support study was made using the Yubari 40t/d test equipment, and the FY 1989 results were summarized. As to the operation of the 40t/d gasification system, operation was stably continued, and also the system was able to feed gas to the wake device. In the high temperature dry desulfurization test, test was made on the following: structure of the sampling system of the continuous analyzer installed in the coal gas system and circulation gas system, load response corresponding control system, sequence control of the system for supplying reducing agent to SO{sub 2} reduction tower and the system for ash discharge, back washing of D-42 lift gas filter, etc. In the high temperature dry dust removal test, improvement in filtration material/dust separation performance, sequence control of the filtration material supply/discharge system, continuous dust densitometer, operational automation, etc. Through the tests, obtained were the results that are useful for the 200t/d plant. (NEDO)

Simulation study on reduction of peak power demand and energy consumption in residential houses with solar thermal and PV systems; Taiyo energy riyo jutaku no fuka heijunka oyobi energy sakugen koka no simulation ni yoru kento

Energy Technology Data Exchange (ETDEWEB)

Endo, T. [Yokohama City Office, Yokohama (Japan); Udagawa, M. [Kogakuin Univ., Tokyo (Japan). Faculty of Engineering

1995-11-20

In this study, taking the all factors involved in the energy consumption in residential houses as subjects, the effectiveness of the solar PV system and solar thermal utilizing system in residential houses has been studied by simulating a model residential house considering the improvement of the residual environment in the future. Therefore, a model residual house is assumed, 18 kinds of combinations of construction style, cooling and heating type and solar energy utilizing form are assumed and year round simulation is carried out. The conclusions obtained by the simulation are as follows. The energy consumption in residential houses may decrease greatly by using a solar hot water supplying system. If combined with a solar PV system, the energy consumption in one year is about 8.7 to 9.7 MWh. The combined use of a solar thermal utilizing system and a PV system is more effective to reduce the second-time energy in comparison with the PV system only. 36% of the space heating energy consumption may be decreased by using the solar space heating system, but the decrease effect of the energy consumption of the solar space heating system is smaller than the solar hot water supplying system. 12 refs., 26 figs., 3 tabs.

Research report for fiscal 1998 on development of environmentally friendly high-efficiency energy utilization system. Research of optimum system designing technology (Research of effect of eco-energy city system technology introduction to Osaka); Kankyo chowagata kokoritsu energy riyo system kaihatsu Saiteki system sekkei gijutsu no kenkyu 1998 nendo chosa hokokusho (Osakafu). Ekoene toshi system gijutsu donyu koka no chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Concerning the district in Osaka Prefecture selected for study in fiscal 1997, it is investigated whether energy efficiency is enhanced, and environmental impact reduced, by the introduction of element technologies, and the findings are compared with the results expected to be produced without their introduction. Problems about their introduction are also discussed. Taken up for study are the collection and utilization of heat from a water granulated slag manufacturing plant of an iron mill, exhaust heat reform and recovery system at a chemical plant, heat supply system driven by a high-performance heat pump capable of dealing with various kinds of fuels, compression/suction hybrid heat utilization system, and a cold heat supply system using microspheres. Annual energy consumption, CO2 and NOx emissions, and costs are calculated for each of them. Concerning these element technologies, various tasks are discussed, related to the technology of their systematization, economy, dissemination of district heat supply, and wide-area heat supply businesses utilizing exhaust heat. As the result, it is concluded that the primary energy consumption as a whole is reduced upon their introduction and that energy saving effect and environmental impact reducing effect are in presence. (NEDO)

Fiscal 1975 Sunshine Project research report. General research on hydrogen energy subsystems and their peripheral technologies (Research on fuel cell system); 1975 nendo suiso riyo subsystem no sogoteki kento to shuhen gijutsu ni kansuru kenkyu seika hokokusho. Nenryo denchi system kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

In fiscal 1974, the domestic and overseas developmental states of fuel cell bodies were surveyed, and some problems on the interconnection between a fuel cell system and power system were studied. Since the maximum outputs of conventional fuel cells are only nearly 10kW, however, those from several hundreds kW to several ten thousands kW are required for buildings or commercial power facilities, in the fiscal 1975, some supposed problems derived from such scale- up of fuel cells were extracted to study their solutions. Study was made on 4 kinds of fuel cells such as alkaline electrolyte, acidic electrolyte, molten salt electrolyte and solid electrolyte fuel cells, and fuel modifier for generating hydrogen. As preliminary modeling work for dynamic performance analysis of fuel cell systems, study was made on scale of the model, DC devices and equipment for customers, environmental impact, power supply reliability, various characteristics and problems in load variation including start and stop, and kinds of accidents and their measures. (NEDO)

Fiscal 2000 feasibility research on environmentally friendly coal utilization system. Seminar holding project (China: Zaozhuang, Yanshan, Jianshan, Jinzhou); 2000 nendo kankyo chowagata sekitan riyo system kanosei chosa hokokusho. Seminar kaisai jigyo (Chugoku Zhaozhuang, Yanshan, Jianshan, Jinzhou)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Seminars were held in China for the delivery of reports on the results of model projects with a view to popularizing the results of the clean coal technology model projects, which had been completed, for the purpose of contributing to the improvement on coal utilization technology and to the enhancement of environmental protection. The seminars took place at the sites of demonstration model projects just completed in China, namely, Zhejiang Huba Corporation (low-grade coal combustion system); Chaili Colliery, Zaozhuang Coal Mining Administration (CFBC - circulating fluidized bed combustion); Jinzhou Heat Power General Co., Ltd. (CFBC); and Beijing Yanshan Petrochemical Corporation (desulfurizing agent-added coal-water mixture system). At each of the project implementation sites, lectures were given on technical matters, technical know-how was exchanged, and study tours were organized to facilities concerned, which meant to promote the diffusion of the related technologies throughout China and, eventually, to contribute to the enhancement of environmental protection. The main subjects at the seminars included the introduction of GAP (green aid plan) projects in China, introduction of the outlines of technologies related to the model projects, verification and achievements, latest trends, and measures for the diffusion of the technologies. Study tours were made, and videos were shown relating to the local conditions. Every one of the seminars was successfully attended by 60-70 participants. (NEDO)

FY 1995 report on the results of the investigational study on the technology development for the commercialization of solar systems for industrial use, etc. - Investigational study on the solar system. Investigational study on a solar heat utilization system; 1995 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Solar system no chosa kenkyu (taiyonetsu riyo system ni kansuru chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

This survey clarifies the present situation of the solar heat utilization technology mostly for industrial use, makes a concrete concept of solar heat utilization clear, and extracts items of the technology development and evaluates sociality, economical efficiency, etc. It aims at working out a program for the future technology development. The following proposals were made: 1) technology development program; 2) simulation soft development program; 3) experimental field of the solar heat utilization technology. In 1), concepts of technology development are 'medical use boiling pasteurization,' 'temperature increase in the metal surface treatment process,' 'water purification using photo-catalyst,' 'distributed small power system,' and 'waste water treatment using bio-technology.' In 2), cost reduction is needed for commercialization/merchandising of technology, and therefore, the development of simulation software is studied. In 3), as the experimental field from commercial/residential use system to industrial use system, an large-scale and systematical experimental field is proposed where all that can be substituted for by solar energy among the energies required for the urban function are used. By this, the solar heat utilization system gets accustomed to the people, increases the reliability, and clearly leads to the course to the next stage of the R and D. (NEDO)

FY 1995 report on the results of the investigational study on the technology development for the commercialization of solar systems for industrial use, etc. - Investigational study on the solar system. Investigational study on a solar heat utilization system; 1995 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Solar system no chosa kenkyu (taiyonetsu riyo system ni kansuru chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

This survey clarifies the present situation of the solar heat utilization technology mostly for industrial use, makes a concrete concept of solar heat utilization clear, and extracts items of the technology development and evaluates sociality, economical efficiency, etc. It aims at working out a program for the future technology development. The following proposals were made: 1) technology development program; 2) simulation soft development program; 3) experimental field of the solar heat utilization technology. In 1), concepts of technology development are 'medical use boiling pasteurization,' 'temperature increase in the metal surface treatment process,' 'water purification using photo-catalyst,' 'distributed small power system,' and 'waste water treatment using bio-technology.' In 2), cost reduction is needed for commercialization/merchandising of technology, and therefore, the development of simulation software is studied. In 3), as the experimental field from commercial/residential use system to industrial use system, an large-scale and systematical experimental field is proposed where all that can be substituted for by solar energy among the energies required for the urban function are used. By this, the solar heat utilization system gets accustomed to the people, increases the reliability, and clearly leads to the course to the next stage of the R and D. (NEDO)

Fiscal 2000 project of inviting proposals for international joint research - invitation for international proposal (Power generation No.1). Achievement report on development of novel high-performance dry type desulfurization agent made from coal ash; 2000 nendo kokusai kyodo kenkyu teian kobo jigyo - kokusai teian kobo (hatsuden No.1). Sekitanbai wo genryo to suru shinki koseino kanshiki datsuryuzai no kaihatsu to riyo seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Efforts are made to develop a technology of using quicklime instead of slaked lime for a reduction in desulfurization cost, based on the technology of the coal ash utilizing dry type desulfurization device operating on coal ash, slaked lime, and gypsum, as hardened by hydration. Activities are conducted in the three fields of (1) basic study, (2) desulfurization agent bench-scale manufacturing test, and (3) study for putting the technology to practical application. In field (1), the basics are studied of the lime slaking process in the manufacture of a dry type desulfurization agent from quicklime, the mechanism is elucidated of the generation of active desulfurization substances, and effective utilization is studied of the desulfurization agent after use. In field (3), conceptual designs are prepared, cost efficiency of desulfurization systems are evaluated, simplified absorption systems are studied, and the trends of dry type desulfurization systems are surveyed. The cost of desulfurization under development is equivalent to that of the wet type method (limestone-gypsum system) when the used desulfurization agent is discarded, and is approximately 60% of the wet type method when the whole amount is effectively utilized. (NEDO)

Research and development of peripheral technology for photovoltaic power systems. Study of nickel-hydride storage battery for photovoltaic generation systems; Shuhen gijutsu no kenkyu kaihatsu. Taiyoko hatsuden`yo suiso denchi no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the study results on R and D of nickel-hydride storage battery for photovoltaic generation systems in fiscal 1994. (1) On the study on low-cost electrode materials, the physical properties and electrode characteristics were studied of the prototype hydrogen absorbing alloys prepared by substituting Cu or Ni for Co in Mm(Ni-Co-Mn-Al)5 (Mm: mixture of rare earth elements). The result clarified that it is difficult to reduce Co content in the alloy to 0.4 atom or less. Simple heat treatment and milling processes in production of hydrogen absorbing alloy electrodes were achieved by adopting an improved metal mold and gas atomization method. Characteristics and cycle life of the Ni positive electrode prepared by applying active paste material of Ni(OH)2 were studied, however, the result showed only lives of nearly 300 cycles. (2) On the study on electrode structure for high-performance (long-life) battery, the 3-D porous metal electrode support was evaluated, and various battery configurations were studied. 11 figs., 1 tab.

6th Conference on Coal Utilization Technology; Dai 6 kai sekitan riyo gijutsu kaigi koenshu

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-09-01

The paper compiled the papers presented in the 6th Conference on Coal Utilization Technology held in September 1996. With relation to the fluidized bed boiler, reported were Field operation test of Wakamatsu PFBC combined cycle power plant and Development of pressurized internally circulating fluidized bed combustion technology. Regarding the coal reformation, Development of advanced coal cleaning process, Coal preparation and coal cleaning in the dry process, etc. Concerning the combustion technology, Study of the O2/CO2 combustion technology, Development of pressurized coal partial combustor, etc. About the CWM, Development of low rank coals upgrading and their CWM producing technology, Technique of CWM distribution system, etc. Relating to the coal ash, Engineering characteristics of the improved soil by deep mixing method using coal ash, Employment of fluidized bed ash as a basecourse material, On-site verification trials using fly ash for reclamation behind bulkheads, Water permeabilities of pulverized fuel ash, Separation of unburned carbon from coal fly ash through froth flotation, Practical use technology of coal ash (POZ-O-TEC), etc

Research and development of photovoltaic power system. Optimization of bandgap of chalcopyrite semiconductors; Taiyoko hatsuden system no kenkyu kaihatsu. Kinseitaihaba no saitekika no kenkyu

Energy Technology Data Exchange (ETDEWEB)

Konagai, M [Tokyo Institute of Technology, Tokyo (Japan). Faculty of Engineering

1994-12-01

This paper reports the result obtained during fiscal 1994 on research on research on optimization of bandgap in thin film compound solar cells. In research on Cu(InGa)Se2 thin film solar cells by using a gas phase selenide making process, discussions were given on optimizing the following three processes: a process to raise temperature of a precursor film formed at a substrate temperature of about 150{degree}C, a selenide making process to perform annealing at about 500{degree}C, and a temperature reducing process. Good characteristics were obtained when selenium amount in the precursor is about 50%. In a bandgap control viewpoint, it was found that the conversion efficiency decreases rapidly when Ga composition is higher than 50%. A conversion efficiency of 14.9% was obtained to date at the Ga/(In+Ga) ratio of 0.4. In research on Cu(InGa)Se2 thin film solar cells by using a simultaneous deposition method, a conversion efficiency of 13.5% was obtained at a bandgap width of about 1.3 eV during research on manufacturing ZnO/CdS/Cu(InGa)Se2 thin film solar cells by using the simultaneous deposition method. Research has been carried out on manufacturing Cu(InGa)Se2 thin film solar cells using ZnSe interface layers. 8 figs.

Development and application of corrosion and protection database using intranet; Intoranetto wo riyo shita zairyo fushoku detabesu no kochiku to katsuyo

Energy Technology Data Exchange (ETDEWEB)

Futatsugi, Takashi.; Baba, Fumio.; Suzuki, Tsuguo. [Ajinomoto Co., Inc., Tokyo (Japan). Technology and Engineering Laboratories

1999-05-15

A new corrosion and protection database system, which stores a large amount of documents and informations about corrosion and protection, such as case histories, materials data, fabrication methods and repairing methods, has been developed. Users of the database system can be accessed using WWW browser via Intranet. This database can be operated by easy handling with only click and drug. The database system is expected to offer a wide knowledge for corrosion related engineers and to decrease corrosion troubles. (author)

Experiments of cooling photovoltaic panel by desorption process; Dacchaku hanno wo riyoshita taiyoko hatsuden panel no ondo josho yokusei jikken

Energy Technology Data Exchange (ETDEWEB)

Akisawa, A; Inoue, S; Kashiwagi, T [Tokyo University of Agriculture and Technology, Tokyo (Japan)

1997-11-25

It is important to cool a photovoltaic (PV) panel, because increased panel temperature is accompanied by decreased power generation efficiency. The authors have proposed a PV power generation system combined with an adsorption chiller driven by low-temperature heat, and simulated temperature changes during the desorption cycle, where the chiller utilizes endothermic reactions of an adsorbent during the desorption cycle. Described herein are results of the tests carried out to validate possibility of controlling panel temperature increase. The system consists of the PV panel with which a bed packed with an adsorbent is monolithically combined, condenser and evaporator. It generates power during the daytime by sunbeams, and provides low-temperature heat during the nighttime by the evaporator. In particular, ice can be produced when methanol and activated coal are used as the adsorbate and adsorbent. It has an advantage of effective utilization of energy as the heat source, which has been merely dissipated by the conventional system in the air. Such a system is expected to be useful for promoting effective utilization of solar energy and for peak power shaving in summer. The initial targets are achieved by the tests. 4 refs., 10 figs.

Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure, with the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system. This paper summarizes the achievements in fiscal 1995. In the outdoor exposure test on solar cell modules, multi-crystalline silicon solar cell modules were selected as the test specimens, and thermo-couples were embedded in the modules to measure the temperatures. Also for the purpose of comparison, storage test specimens were stored in a constant temperature and humidity chamber. The exposure tests were carried out in three locations of the city of Choshi in Chiba Prefecture, the Miyako Island test site in Okinawa Prefecture, and the Miyako Island seashore. In the measurement and evaluation, appearance observation and measurements of output characteristics and insulation resistance were executed in summer and winter. No noticeable changes were observed in the measurements after lapse of four months and six months. In the outdoor exposure tests of metal test pieces, aluminum alloys were tested for corrosion caused by contact with different kinds of metals. Although the test period was short in the current fiscal year, difference in corrosion degrees in the aluminum alloys was found already in three months. (NEDO)

Research report for fiscal 1996 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1996 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure, with the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system. This paper summarizes the achievements in fiscal 1996. In the outdoor exposure tests on solar cell modules, results of the tests were derived for up to 18 months after the start of the exposure at Choshi City, Miyako Island and the Miyako Island seashore. In the appearance observation, some white rust has appeared in the contact section of the aluminum frames of the solar cell modules and fixing screws, which have been exposed at Miyako Island and the Miyako Island seashore, but no changes that may give influence on the performance of the solar cells have been observed. The results showed performance similar to or slightly inferior to that before the exposure as a whole. The insulation resistances were all found good. According to the result of the outdoor exposure test of metal test pieces, noticeable difference in the corrosion degrees was recognized in the contact corrosion section of the aluminum alloys exposed in three areas having different meteorological and environmental factors. Electroplated zinc was found to have severer pitting corrosion in the contact sections than treatment-free zinc. (NEDO)

FY 1997 report on the results of the industrial technology R and D project. Development of technology to use biological resources such as the complex biological system (Development of biological use petroleum substitution fuel production technology); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

Experimental researches were conducted and the FY 1997 results were reported with the aim of establishing analytical technology for the complex biological system by which the complex biological system can be analyzed in such a state as it is using the molecular biological method. In the study of the molecular genetic analytical technology, PCR primers used for amplification of topoisomerase II genes of the whole eukaryote was designed. As to the histochemical analytical technology, a study was made on the new constitution microorganism detection method by the hybridization method and the antibody specific dyeing method, and the following were conducted: manifestation in quantity of colibacillus and the recovery, refining, and construction of peptide library by fuzzy display method. Concerning the functional analytical technology, technological researches were made such as the environmental adaptation mechanism of high thermophile and the information transfer mechanism among bacteria through cell membranes for elucidation of the special environment detection/response mechanism and the special environment adaptation/resistance mechanism. As to the separation/culture technology, various anaerobic microorganisms were separated from marine sponge for the development of a method of culturing in 3D matrices. (NEDO)

Research report for fiscal 1997 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1997 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

With the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system, weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure. This paper summarizes the achievements in fiscal 1997. In the outdoor exposure tests on multi-crystalline silicon solar cell modules at Choshi City, Miyako Island and the Miyako Island seashore, the output characteristics after the exposure tests showed a result that the insolation intensity and the change in the short circuit current are approximately proportional, and the temperature in the module and the change in the open voltage are inversely proportional. The module characteristics retention rate showed no change in the 29-month exposure at all of the three exposure locations. The insulation resistance in the exposure test specimens have been good at 2,000 M{omega} or more in all the locations until 18 months have elapsed. However, the test specimens in Miyako Island and the Miyako Island seashore showed 99 M{omega} after 23 months, and 129 to 1,774 M{omega} after 29 months. According to the outdoor exposure tests of metal test pieces, noticeable difference was found in corrosion due to difference in the environment by each exposure location, whose order of the corrosion degree was the Miyako Island seashore > Miyako Island > Choshi City. (NEDO)

Fiscal 1995 coal production/utilization technology promotion subsidy/clean coal technology promotion business/regional model survey. Study report on `Environmental load reduction measures: feasibility study of a coal utilization eco/energy supply system` (interim report); 1995 nendo sekitan seisan riyo gijutsu shinkohi hojokin clean coal technology suishin jigyo chiiki model chosa. `Kankyo fuka teigen taisaku: sekitan riyo eko energy kyokyu system no kanosei chosa` chosa hokokusho (chukan hokoku)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

The coal utilization is expected to make substantial growth according to the long-term energy supply/demand plan. To further expand the future coal utilization, however, it is indispensable to reduce environmental loads in its total use with other energies, based on the coal use. In this survey, a regional model survey was conducted as environmental load reduction measures using highly cleaned coal which were taken in fiscal 1993 and 1994. Concretely, a model system was assumed which combined facilities for mixed combustion with coal and other energy (hull, bagasse, waste, etc.) and facilities for effective use of burned ash, and potential reduction in environmental loads of the model system was studied. The technology of mixed combustion between coal and other energy is still in a developmental stage with no novelties in the country. Therefore, the mixed combustion technology between coal and other energy is an important field which is very useful for the future energy supply/demand and environmental issues. 34 refs., 27 figs., 48 tabs.

Photovoltaic AC fusion converter (PVAC). Design consideration and experimental evaluation; Taiyoko hatsuden denryoku/shoyo denryoku kongo sochi no hoshiki to seino

Energy Technology Data Exchange (ETDEWEB)

Tsuchiya, Y. [Hachinohe National College of Technology, Aomori (Japan); Sakakibara, T. [Toyohashi University, of Technology, Aichi (Japan)

1997-11-25

The photovoltaic AC fusion converter (PVAC), of which cost reduction of the total system is possible, was developed. PVAC controls the supply of commercial power by preferentially supplying photovoltaic power to loads for realization of energy conservation. Further, setting the maximum output of solar cell less than the rated load, the system was made the one with no need of storage batteries. This system was realized in a hybrid of the conventional rectification technology and the stand-alone maximum power point tracking photovoltaic system technology. The solar cell input efficiency had been measured as 84% at maximum. Main losses are consumption power of power source, switching loss of inverter, and continuity loss of diode. Ninety-seven percent of the commercial power input efficiency was obtained. Main losses are consumption power of power source, continuity loss of diode bridge, and resistance loss of smoothing reactor. The effect of energy conservation by the use of PVAC was also admitted. 6 refs., 7 figs.

FY 2000 report on the results of development of technology for commercializing high-efficiency fuel cell systems. Development of technology for commercializing high-efficiency fuel cell systems (Development of technology for effective utilization of power produced by polymer electrolyte fuel cell systems); 2000 nendo kokoritsu nenryo denchi system jitsuyoka gijutsu kaihatsu seika hokokusho. Kotai kobunshigata nenryo denchi no shutsuryoku yuko riyo gijutsu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This project is aimed at development of technologies for effective utilization of power produced by polymer electrolyte fuel cell (PEFC) systems and waste heat, to spread cogeneration systems incorporating PEFC systems for residential purposes. Described herein are the FY 2000 results. The program for high-efficiency peripherals for residential PFEC systems attempts use of GaN-FET as the semiconductor device of wide band gap and high breakdown voltage to realize conversion efficiency over 90% by improving inverter efficiency. Two types of the prototype heat recovery systems are developed for the PEFC, one incorporating a latent heat cooling system and the other a water cooling system, to improve heat recovery efficiency and increase heat recovery temperature. The program for technology to fit PEFC output to energy demand develops hot water supply systems provided with a hot water storage function for stable supply of hot water irrespective of the heat recovery conditions, and also with a back-up function with burners. The program also develops the PEFC system of fine load following characteristics, for which pure hydrogen is used as the fuel to allow the system to instantaneously follow fluctuating loads. The program for high-efficiency partial load operation technology studies a 1kW-class residential PEFC cogeneration system incorporating a power storage device for high-efficiency operation at partial loads, where the former operates in a high output mode while the latter absorbs fluctuating loads. (NEDO)

Fiscal 1976 Sunshine Project result report. Research on solar energy utilization systems (solar furnace); 1976 nendo taiyo energy riyo system chosa kenkyu seika hokokusho. Taiyoro

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-01

For solar furnace, study was made on analysis of its use purpose, analysis of the profitability of large furnaces, safety, maintenance, solar radiation and construction site conditions. On production of fused refractories by solar furnace, in particular, giving attention on zircon sand and mullite, their fusion property was clarified, and their fine structure was obtained by rapid heating/cooling. On production of Si by solar furnace, in this fiscal year, in particular, study was made on the 1st step (production of coarse Si from silica rock) and 4th step (deposition of Si by decomposition of SiHCl{sub 3}). On study on high-temperature processing followed by chemical reaction, study was made on production of carborundum by solar furnace, its application to high-temperature gas reaction, and its application to heat storage by high-temperature chemical reaction. In addition, for large solar furnace, study was made on its maintenance, safety, pollution problem, and construction site condition based on estimation of direct solar radiation profile maps. Inlands of Tokai, Kii-Hanto and Seto-Naikai districts were confirmed to be suitable for solar furnaces. (NEDO)

Results of the supplementary work to the fiscal 1994 New Sunshine Project. Development of geothermal power plants, etc. (development of production, technology for deep-seated geothermal resources); 1994 nendo new sunshine keikaku hojo jigyo seika hokokusho. Nessui riyo hatsuden plant to kaihatsu (shinbu chinetsu shigen saishu gijutsu no kaihatsu shinbu chinetsu shigen seisan gijutsu no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1995-03-01

The paper reports on the fiscal 1994 results of the study of the development of a technology for collecting deep-seated geothermal resources, which has been made for increasing the capacity of the geothermal power generation as a part of the New Sunshine Project. As a plan for the development, a development is made of logging equipment and its auxiliary system and then characteristics of the deep-seated geothermal well are clarified. The logging equipment is a PTSD (pressure/temperature/spinner flow-meter/fluid density) logger which stands the use at deep-seated geothermal wells of 400{degree}C and 490 kgf/cm{sup 2} and measures pressure, temperature, flow rate and fluid density under static and dynamic conditions. In this fiscal year, metal seals were developed for preventing geothermal fluids from penetrating into the PT probe. Qualities and inner/outer diameters of various kinds of structural materials used in the S probe were determined, and output necessary enough to detect the rotation number is obtained. Measuring precision of D logging by {gamma} rays was evaluated. The study was made of the monitoring technology including the borehole and ground measuring system, the borehole fluid sampling and the scale formation. Relating to the tracer widely used in monitoring of hydrothermal reservoirs, investigated was the trend of the technology from abroad. 8 refs., 60 figs., 26 tabs.

Achievement report for fiscal 1998 on development of wide-area energy utilization network system. Eco-energy urban system (Research of systematization technology and evaluation technology out of energy system designing technology researches); Koiki energy riyo network system kaihatsu (eko energy toshi system) 1998 nendo seika hokokusho. Energy system sekkei gijutsu no kenkyu no uchi system ka gijutsu hyoka gijutsu no kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the realization of urban society respecting enhanced energy efficiency and environmental protection, cities and surrounding industrial facilities are investigated for the development of element technologies involving energy recovery, conversion, transportation, storage, delivery, utilization, etc., and for the compounding of urban energy systems. In the study of the effect of introduction, assumption is made of delivery of heat to an urban heat accumulation district from a plant equivalent to a district air-conditioning system which is covered by the existing technologies. Also assumed are the delivery of exhaust heat to the said plant utilizing eco-energy element technologies and the replacement of existing technologies by eco-energy element technologies. Comparison is established in terms of energy efficiency, environmental protection, and economy, and then it is found that the eco-energy element technologies for the utilization of exhaust heat are in all cases superior to the conventional technologies as far as energy efficiency and environmental protection are concerned. It is found, however, that they are inferior from the economic viewpoint. The energy efficiency technology in heat transportation is superior to the existing technology in energy efficiency and environmental protection but roughly equal to the existing ones in economy. (NEDO)

Photovoltaic power generation field test at Nisshin Techno-Center (Nisshin City, Aichi Prefecture); Nisshin tekuno center taiyoko hatsuden field test jigyo (Aichiken Nisshinshi)

Energy Technology Data Exchange (ETDEWEB)

Otsuki, M. [Meitec Corp., Nagoya (Japan)

1997-05-30

A 20kW system is installed on the rooftop of a newly constructed building accommodating a study and training center and citizens` welfare facilities. The system in continuous operation under real loads (lighting, airconditioning) will provide various data useful in introducing further systems in the future and in verifying the effect of system installation cost reduction efforts. Single-crystal solar cells are used, which are located at latitude 35deg8prime north, longitude 137deg4prime east. The arrays are formed into two systems, 18 in series and 7 in parallel, and there are 252 modules. The arrays are inclined at 20deg and, in azimuth, swung 25deg westward from due south. The installation of this system forms a precedent, following which more may be introduced. Located in front of a station on Meitetsu Toyota Line, it advertises itself fully to the passengers getting on and off the train. Now that power consumption fluctuates very much in this district, heavy on Saturdays and Sundays and light in the daytime on weekdays, rare data not often available will be collected from this photovoltaic system. Since consideration space-wise has been fully made, visitors can study the photovoltaic system until they are satisfied, the system thus finding itself under conditions where advertisement can be effectively carried out. 14 figs., 1 tab.

Soft energy/seawater pumped-storage power plant in Okinawa; Sofuto energy/Okinawa kaisui yosui hatsuden

Energy Technology Data Exchange (ETDEWEB)

Tsutsui, S. [Univ. of Ryukyus, Okinawa (Japan). Faculty of Engineering

1995-11-15

A demonstration seawater pumped-storage power plant which is the first one in the world is under construction in the northern area of Okinawa. The pumped-storage power generation is an electricity recycling system in which the surplus electricity during the night is utilized to pump up water to an upper reservoir to discharge water for power generation during the daytime when demand for electricity increases. It is scheduled that main civil engineering structures are constructed during the year of 1995 to be subjected to trial operation in the following year. Countermeasures to be taken for natural environmental protection during the plant construction are introduced. Countermeasures are devised for environment assessment, muddy water treatment, and prevention of seawater at the upper reservoir. Salinity in the atmosphere is to be measured during the construction work and the demonstration test to evaluate the effects of scattering of salt from the upper reservoir into the atmosphere on the vegetation in the peripheral area and the salt-resistance of vegetation. Sufficient consideration is given to the protection of the existing vegetation and coral, and to the protection of small living creatures. Participants in the construction work are requested to report, for the purpose of taking proper steps, sites, peripheral conditions, and others when precious animals are found. 9 figs., 1 tab.

FY 2001 report on the results of the development of the hydrothermal utilization power plant, etc. Development of collecting technology for deep geothermal resources (Development of production technology for deep geothermal resources); 1992 - 2001 nessui riyo hatsuden plant tou kaihatsu sokatsu seika hokokusho. Shinbu chinetsu shigen saishu gijutsu no kaihatsu - Shinbu chinetsu shigen seisan gijutsu no kaihatsu (2001 nendo seika hokokusho bessatsu shiryo)

Energy Technology Data Exchange (ETDEWEB)

NONE

2002-03-01

For making effective/economical collection of deep geothermal resources, development was made from FY 1991 to FY 2001 of the 'drilling technology for deep geothermal resources' and 'production technology for deep geothermal resources,' and the results were summarized. As to the development of logging technology, the PTSD logging system was developed which can measure temperature/pressure/flow velocity/fluid density in geothermal well under the environment of temperature of 400 degrees C. Concerning the development of monitoring technology, development was made of the PT monitoring system that can make the long-term continuous measuring of temperature/pressure in deep geothermal observation well under the environment of temperature of 400 degrees C and of the C monitoring system that samples geothermal fluids at regular intervals to grasp changes in chemical component. Relating to the development of high temperature tracer monitoring technology, the following were conducted: extraction of high temperature tracer agent that can be used in geothermal reservoirs under the environment of temperature of 300 degrees C, development of simulator, and establishment of how to put tracer agent into the reservoir and how to analyze tracer agent. Further, the R and D were made of scale monitoring technology and scale prevention/removal technology. (NEDO)

Achievement report for fiscal 2000 on research and development of high level waste glass utilization system of CO2 emission suppression type; 2000 nendo CO2 haishutsu yokuseigata hai glass kodo riyo system no kenkyu kaihatsu seika hokokusho (kokaiyo)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

With an objective to establish a waste glass recycling system of low cost and requiring less CO2 emission amount and energy consumption, research and development has been made on classification of waste glasses into particle composition that is required in regenerated commercial products. This paper summarizes the achievements in fiscal 2000. In the research of a waste glass reusing and supplying system designed by using LCA, discussions were given on items required in circulating and recycling waste glass resources, and quality control on raw materials and products. Evaluations of product quality control items were made on crystallized glass, sintered glasswool, automotive window glass, electric bulbs, fluorescent lamp glass, and quartz glass. Utilization tests were carried out for Mashiko porcelain china clay with an intention of expanding the application of waste glass, whereas the relationship between waste glass addition amount and optimal sintering temperature range was verified, disclosing that the limit of the waste glass addition is 10%. In the research on multi-functional hybrid materials, discussions were given on light-weight tiles and water permeating blocks with regard to the manufacturing technology, facility specifications, product quality, effects of the functions, and durability. (NEDO)

FY 1991 report on the results of the development of the entrained bed coal gasification power plant. Part 1. Element study/investigational study of technology/study of the integrated coal gasification combined cycle power system; 1991 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen, sekitan gaska fukugo hatsuden system kento hen

Energy Technology Data Exchange (ETDEWEB)

NONE

1993-01-01

For the purpose of establishing the technology of integrated coal gasification combined cycle power generation, the following were conducted: element study of a 200t/d entrained bed coal gasification pilot plant, survey of technology of the coal gasification power generation, study of the practical scale IGCC, etc. The FY 1991 results were summarized. In the gasification test using 2t/d furnace equipment, evaluation test on the test coal for pilot plant was made. In the study of gas turbine combustor for demonstration machine use, measuring duct was fabricated for measurement of combustion gas temperature/pressure, etc. In the simulational study of the total system of combined cycle power generation, review/modification of part of the simulation model and detailing of the model were conducted by comparison with the data on pilot plant operation. In the technology study, joint technology conferences were held for discussions between Japan and Australia, Japan and the U.S., and Japan and Canada. As to the practical scale IGCC, the initially planned output capacity and thermal efficiency were studied based on the knowledge/information obtained through the R and D on the 200t/d pilot plant. (NEDO)

Experimentation to seek the local speciality in kWh of P.V. system, and a study of its measuring method and instruments and apparatus; Taiyoko hatsuden system no jibetsu hatsudenryo no chiiki tokusei wo motomeru jissho shiken narabini, sono sokutei kansoku no hoho kiki ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Anno, T.

1997-11-25

Introduced in this paper are some problems that the author encounters in relation with a 2.6kW photovoltaic power generation system installed at the author`s residence for the purpose of measuring the hourly amounts of generated power. Giving rise to questions in the inverter and the control system are the conversion efficiency under a partial load, the scope of little amounts that are omitted, the maximum power point tracking system and its performance, etc. The author wants to learn how to land on an appropriate conductor thickness and to know the special specifications if any for heavy-snow regions and their effect. Much has been learned from presenters, moderators, and participants at scientific events and through private talks. Although it seems that there exists some relationship between the maximum power point tracking system and the diameter of conductors suitable for the system, yet the manufacturers fail to give clear-cut answers. The author thinks that end-users find many black box-like parts in the system, which the author leaves uncared for now for later study. It is learned that there is no specification intended exclusively for heavy-snow regions. The author`s system is in operation with hourly output recording and data accumulation started. 2 figs.

Study of a wave power generator system using an air turbine having improved J-shaped blades; Kairyo J gatayoku kuki turbine wo mochiita haryoku hatsuden sochi no kenkyu

Energy Technology Data Exchange (ETDEWEB)

Honma, T; Omata, K; Kojima, N [Meiji University, Tokyo (Japan)

1997-11-25

An improved J-shaped blade, in which a J-shaped blade is combined with a small-size Savonius blade, has been developed, to further improve efficiency of an air turbine for wave power generator systems. A prototype model of stationary wave power generator has been developed using the improved blade, to confirm its power generation characteristics by tests in a water tank and small-scale ocean tests. The results are compared with the characteristics of the units with conventional blades. The air turbine unit with the improved blade shows an efficiency of 13 to 35%, which is higher by 10 to 20% than that of the turbine with a J-shaped blade and by 20 to 70% than that of the one with a Savonius blade, more noted at low speed of rotation. It is therefore considered that the turbine with the improved blade is suited for sea areas having a relatively low wave height. It is also considered that efficiency can be further enhanced, when one or more guide vanes are provided around the blade. 2 refs., 12 figs.

Utilization of coal fired power plant by-products. Utilization of coal ash; Sekitan karyoku ni okeru fukusanbutsu no yuko riyo gijutsu. Sekitanbai no yuko riyo

Energy Technology Data Exchange (ETDEWEB)

Kishimoto, K. [The Federation of Electric Power Companies, Tokyo (Japan); Watanabe, M. [Electric Power Development Co. Ltd., Tokyo (Japan)

1997-11-05

The paper introduced the present situation and future task of the tackling with effective use of coal ash discharged from coal thermal power plants. Making the use of the characteristics, coal ash is mostly used in the fields of cement/concrete, civil engineering/construction, and agriculture/forestry/fisheries. In the case of using fly ash to concrete, the effects are the heightening of long-term strength, increase in workability, decrease in hydration heat, control of alkali aggregate reaction, etc. In the civil engineering/construction field, coal ash is allowed to be used for road bed material and mixed civil engineering material as road materials, for revetment back-filling material, soft ground surface layer treatment, soft ground/soil improvement materials, FGC deep layer mixing treatment process, SPC (sand compaction pile) material, etc. as earth work materials. Besides, it is used for light coarse aggregate, light sand, etc., as construction materials, for material substituting ceramics products, etc. as building materials, and for agricultural material, potassium silicate fertilizer and ocean structure in the agriculture/forestry/fisheries field. 4 refs., 2 tabs.

New energy technology development related database construction survey (wind power generation); Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (furyoku hatsuden)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

To arrange systematic data relating to new energy, the latest published data relating to the wind energy conversion systems have been collected and arranged. For the overview of wind energy conversion system, wind turbines with horizontal axis and vertical axis, specification of wind turbine, and conceptual figure of wind energy conversion systems are illustrated. For the installation examples, introduction development of wind energy conversion systems in the world is described for Japan, the USA, Germany, Denmark, Spain, Sweden, India, and Belgium. For the relevant legislation and support plan, relevant legislation for the introduction of wind energy conversion in Japan, support plan in Japan, and support plans in foreign countries are described. Prices of wind turbines by wind turbine makers in the world, construction cost by Japanese makers, basic term, and subsidiary company and organization are shown

Development in fiscal 1998 of technology to put solar systems for industrial use into practical use. International joint technology development for solar energy utilization systems; 1998 nendo sangyoyo nado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyo energy riyo system kokusai kyodo gijutsu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The solar energy utilizing technologies having been developed under the Sunshine Project were used to have executed the international joint technology development on the 'solar heat utilizing drying system' in the Republic of Indonesia. This paper summarizes the achievements in fiscal 1998. In operating the pilot plant, three operational experiments out of seven experiments were carried out only by Indonesian engineers. As a result of the drying experiments, the heat collecting characteristics of the collector were as about half at 19 to 30% as the efficiency assumed in the design of 50%. The reason for this can be attributed to the fact that the cover glass used in the demonstration test in Japan had light permeability of about 87%, but the cover glass used in the test plant was made of frosted glass whose light permeability was about 37%. This glass is the only glass available for a heat collector in the solar heat hot water device in Indonesia, but is unsuitable for the heat collector. Another cause was that the insolation at the site was lower by about 30% than the one used at the design stage. (NEDO)

Development in fiscal 1998 of technology to put solar systems for industrial use into practical use. International joint technology development for solar energy utilization systems; 1998 nendo sangyoyo nado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyo energy riyo system kokusai kyodo gijutsu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The solar energy utilizing technologies having been developed under the Sunshine Project were used to have executed the international joint technology development on the 'solar heat utilizing drying system' in the Republic of Indonesia. This paper summarizes the achievements in fiscal 1998. In operating the pilot plant, three operational experiments out of seven experiments were carried out only by Indonesian engineers. As a result of the drying experiments, the heat collecting characteristics of the collector were as about half at 19 to 30% as the efficiency assumed in the design of 50%. The reason for this can be attributed to the fact that the cover glass used in the demonstration test in Japan had light permeability of about 87%, but the cover glass used in the test plant was made of frosted glass whose light permeability was about 37%. This glass is the only glass available for a heat collector in the solar heat hot water device in Indonesia, but is unsuitable for the heat collector. Another cause was that the insolation at the site was lower by about 30% than the one used at the design stage. (NEDO)

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 1. Research study on integrated evaluation and development plan; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 1. Sogo hyoka to kaihatsu keikaku no tame no chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This paper describes the research result on the WE-NET project in fiscal 1996. The WE-NET project is composed of various elemental technologies such as hydrogen production, transport, storage, low-temperature material, utilization and hydrogen combustion turbine. The organic integrated cooperation and coordination between individual subtasks are indispensable for effective promotion of the project and optimization of the total system. The current R and D states of every elemental technology were surveyed, and its findings were utilized for coordination of the whole project and examination of the research project including pilot studies. Eleven important items in the total coordination including a total system cost and safety measures in a developmental stage were examined. The development results for 4 years of fiscal 1993-1996 were assessed together, and the draft working plan for fiscal 1997-1998 was also decided. The verification test plan of a hydrogen combustion turbine scheduled in Phase II was studied, and the basic plans of development step were proposed. The draft report of a transition scenario was also prepared. 6 figs., 68 tabs.

Worldwide clean energy system technology using hydrogen (WE-NET). subtask 9. Investigation of innovative and leading technologies; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 9. Kakushinteki sendoteki gijutsu ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The WE-NET Project is a long-term project designed to ensure that an energy network technology using hydrogen becomes a reality not later than 2020. So the project cannot remain effective unless constant efforts are made to foresee future trends of technology and optimize it as the making of entire system for the project. In this project, new technologies which are not up for development are also investigated. Their feasibility should be studied, if necessary. From the foregoing point of view, new technologies are studied, collected and evaluated. Thus, useful suggestions and proposals may be made as to the course for the project to follow, as well as its research and development. Proposals highly evaluated up to FY 1995 are the hydrogen-oxygen internal-combustion Stirling`s engine, hydrogen production by solid oxide electrolysis, magnetic refrigeration technology for liquefaction of hydrogen, solar thermal hydrogen production with iron sponge technology, and hydrogen producing technology with photocatalyst. Conceptual investigation themes in FY 1996 are the hydrogen internal-combustion Stirling engine, solar thermal hydrogen production, phototransformation process, and high-temperature steam electrolysis. 9 figs., 54 tabs.

Fiscal 1974 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on 2-6 group compound semiconductor solar cells); 1974 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. 2-6 zoku kagobutsu handotai taiyo denchi no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-05-31

This report summarizes the fiscal 1974 research result on 2- 6 group compound semiconductor solar cells. To obtain a probability of the technology for producing photovoltaic power generation systems at a cost less than 1/100 of those by current technology, this research aims at establishment of the pollution-free production technology of the titled solar cells, and development of an innovative photovoltaic power generation system using such solar cells. The research is composed of (1) study on deterioration mechanism, (2) measures against pollution, and (3) basic study on the production system of such semiconductors. In the 1st research, the analysis result showed that deterioration under solar radiation or by short circuit is derived from an increase in resistance around a positive electrode and a decrease around a junction caused by change in Cu{sub 2}S composition due to migration of Cu ions in a Cu{sub 2}S layer by photo current. In the 2nd research, study was made on preventive technology of Cd pollution. In the 3rd research, basic study was made on the production systems of semiconductors such as sintering, chemical separating and vapor-phase growth for cost reduction. (NEDO)

FY 1998 report on the results of the development for an advanced application system for glass waste with CO2 emission reduction; 1998 nendo CO{sub 2} haishutsu yokuseigata hai glass kodo riyo system no kenkyu kaihatsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

For the realization of the cycling recycle society, it is important to promote recycling using glass waste for CO2 reduction and effective use of resources. The paper described the FY 1998 results of the development. It included the classification by which the composition of the particle sizes required for recycled products will be made possible, basic studies for low-cost pulverization/separation of foreign substances, and tests on heightening of process accuracy. Relating to the artificial synthesis of feldspar/pottery stone using glass waste/alumina waste as starting materials, vitrification behavior was studied to find out the optimum synthesis conditions. Glass waste of 60% and aluminum hydroxide of 40% were mixed at calcination temperature of 1,100 degrees C for more than 1 hour. Properties of the artificial feldspar/pottery stone were similar to those of the natural one. As to the utilization of glass waste to hydrothermally solidified materials, high-strength solidified matter without crack was obtained in the three-component system of G powder/hydrated lime/gypsum. Concerning the production of eco-glass block, a study was made on the size and mixing ratio of the cullet waste which is very soluble and has no effects on performance. The paper touched also on the R and D of the environmentally friendly type system using multi-functional hybrid materials. (NEDO)

Fiscal 1975 Sunshine Project research report. General research on hydrogen energy subsystems and their peripheral technologies (General research on hydrogen energy subsystems); 1975 nendo suiso riyo subsystem no sogoteki kento to shuhen gijutsu ni kansuru kenkyu seika hokokusho. Suiso riyo subsystem no sogoteki kento

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

This report is composed of the part 1 'General research on hydrogen energy subsystems' and the part 2 'Outline of researches on every use pattern of hydrogen'. The part 1 outlines the fiscal 1975 activity and result, the latest research situation, the latest domestic and overseas R and D situations, some extracted problems, and the future research issues. The part 2 summarizes the research results of every committee with the following themes: (1) Hydrogen combustion technology (combustion characteristics and technology of hydrogen-methane mixture, home and industrial combustors, study on hydrogen energy system), (2) Fuel cell, (3) Automobile engine (merits and demerits of automobile hydrogen engine, problems and their possible solutions on hydrogen engine, urgent research issues), (4) Aircraft engine (prospect for hydrogen use in air transport in Japan, study on various systems around airports in hydrogen use, technical study on aircraft using hydrogen fuel), (5) Gas turbine, and (6) Chemical use of hydrogen. (NEDO)

Achievement report for fiscal 1998 on development of wide-area energy utilization network system. Study of energy system designing technology (Research into factory area energy system); Koiki energy riyo network system kaihatsu, energy system sekkei gijutsu no kenkyu 1998 nendo seika hokokusho. Kojogun no energy system ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-05-01

Actualities of exhaust heat and demand for heat in the area are investigated on the result of which a wide-area energy utilization network system will be built. In fiscal 1998, further questionnaires are distributed in addition to last fiscal year's, and door-to-door visits are made on leading factories representing 10 types of industries. The result of data analysis places the nationwide total of exhaust heat at 320,000 Tcal/year including heat generated by electric power generation. When it is so defined that usable heat be above 150 degrees C for exhaust gas, above 40 degrees C for hot water, and above 200 degrees for solids, the total will be reduced to 230,000 Tcal/year. Cleaning plants (plants that treat refuse or sewage) as the sources of exhaust heat besides the factories are investigated for the amount of heat they discharge, and then it is found that the amount of heat they discharge is the fourth largest following electric power plants, iron and steel mills, and chemical plants. It is also found that most of their exhaust heat is of good quality because it is latent in steam or hot water. It is acknowledged, partly because many of such plants are situated relatively near to the urban district, that their role is important when studies are made on the utilization of exhaust heat. (NEDO)

New Sunshine Program for Fiscal 2000. International cooperative project for developing photovoltaic power system practicalization technology (International Energy Agency (IEA)/Cooperative Program on Photovoltaic Power Systems (PVPS) implementing agreement - Executive committee meeting); 2000 nendo New sunshine keikaku. Taiyoko hatsuden system jitsuyoka gijustu kaihatsu kokusai kyoryoku jigyo (IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei shikko iinkai)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Cooperative endeavors of research and development, verification, analysis, information exchange, introduction acceleration, etc., were exerted through participation in the above-said PVPS program. At the 15th PVPS executive committee meeting held in this fiscal year, reconsideration was made about the commencement of new tasks, change of OAs (operating agents), change of participating countries, etc., whose current state was not correctly reflected in the existing implementation agreement. At the 16th PVPS executive committee meeting, discussions were made and conclusions were reached that the next executive committee meeting decide whether to change the chairman, that deliberation be made in 2003 to decide whether to hold the 4th IEA/PVPS executive conference in Japan, that the assessment of each of the tasks be carried out in fiscal 2001, and that Task I conduct studies about market implementation for the fruits of the research-centered activities in the past to hit the market, etc. Workshop meetings were held, where Australia, France, Italy, and Japan reported their PVPS research, development, and popularization efforts. (NEDO)

New Sunshine Program for Fiscal 2000. International cooperative project for developing photovoltaic power system practicalization technology (International Energy Agency (IEA)/Cooperative Program on Photovoltaic Power Systems (PVPS) implementing agreement - Task 1); 2000 nendo New sunshine keikaku. Taiyoko hatsuden system jitsuyoka gijustu kaihatsu kokusai kyoryoku jigyo (IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei task 1)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Fiscal 2000 participation in the above-named program is reported. At the Task 1 meeting of experts, electric power application in the participating countries was taken up and information was exchanged concerning the technical, economical, and environmental facets of photovoltaic power generation, efforts were made to disseminate the technology to non-participating countries, and coordination was established between the Tasks. For the preparation and publication of the ISR (International Survey Report), Japan would prepare and submit its NSR (National Survey Report) on Japan's photovoltaics-related policies, amounts of introduction and production, etc. The ISR was to be compiled by technical writers based on the NSRs submitted by the countries involved, to be bound into a book by September after supervision by the Task 1 staff and the executive committee. As for Market Implementation, it would be compiled under the leadership of Germany, Sweden, Denmark, Norway, and Japan. An added-value workshop was held at Glasgow, the United Kingdom, in May 2000 with the participation of 53 representing 14 countries. (NEDO)

New Sunshine Program for Fiscal 2000. International cooperative project for developing photovoltaic power system practicalization technology (International Energy Agency (IEA)/Cooperative Program on Photovoltaic Power Systems (PVPS) implementing agreement - Task 1); 2000 nendo New sunshine keikaku. Taiyoko hatsuden system jitsuyoka gijustu kaihatsu kokusai kyoryoku jigyo (IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei task 1)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Fiscal 2000 participation in the above-named program is reported. At the Task 1 meeting of experts, electric power application in the participating countries was taken up and information was exchanged concerning the technical, economical, and environmental facets of photovoltaic power generation, efforts were made to disseminate the technology to non-participating countries, and coordination was established between the Tasks. For the preparation and publication of the ISR (International Survey Report), Japan would prepare and submit its NSR (National Survey Report) on Japan's photovoltaics-related policies, amounts of introduction and production, etc. The ISR was to be compiled by technical writers based on the NSRs submitted by the countries involved, to be bound into a book by September after supervision by the Task 1 staff and the executive committee. As for Market Implementation, it would be compiled under the leadership of Germany, Sweden, Denmark, Norway, and Japan. An added-value workshop was held at Glasgow, the United Kingdom, in May 2000 with the participation of 53 representing 14 countries. (NEDO)

General report of entrustment investigation for demonstration tests of turnover from oil to methanol in the thermal power plants in fiscal 1995. Total assessment of methanol using power generation technology; 1995 nendo sekiyu karyoku hatsudensho methanol tenkan nado jissho shiken itaku gyomu hokokusho sokatsu hokokusho. Methanol riyo hatsuden gijutsu sogo hyoka chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

To promote the introduction of methanol fuel into the thermal power plants, total assessment was provided. For calculating the methanol production cost, the plant was assumed to be constructed in the Southeast Asia or Middle East. Two methods, i.e., steam reforming and gaseous phase fluid methods, were investigated. Since the price of natural gas is low in the Middle East, the methanol production cost by the gaseous phase fluid method is estimated to be about 1.5 yen per thousand kcal. The transportation cost can be reduced into one-half to one-third of current cost using a large-scale tanker. Although the heating value of methanol per weight is lower than that of LNG, the volume flow of methanol is similar to that of LNG due to its low specific gravity. Conceptual designs were conducted for some power generation systems, such as gas turbine of combined cycle, diesel engine, and fuel cell. The power generation cost was estimated to be 8 to 9 yen per kWh, which depends on the receiving price of methanol. It is nearly equivalent to that of LNG combined cycle power generation. There are no problems of air pollution and ash disposal. When considering the long-term security of energy sources, the use of methanol would be one of the selections as utilization of natural gas. 6 refs., 33 figs., 25 tabs.

Fiscal 2000 report on the development of high-efficiency refuse-fueled power generation technology; Kokoritsu haikibutsu hatsuden gijutsu kaihatsu 2000 nendo hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Efforts were made to develop a refuse gasification/fusion power generation technology to contribute to the effective utilization of unexploited energy and to reduction in greenhouse gas emissions. Developed in the technology of elevating steam temperature were the evaluation of high-temperature corrosion of SH materials and a high temperature dust removing system, dechlorination technology for the thermolysis process, and a ceramic-made high-temperature air heater. For the avoidance of exhaust gas reheating, development was carried out for a low-temperature denitration unit, stable refuse feeding system for reduction in the self-heat melting critical calorific value, waste plastic injection technology for reduction in the amount of external fuel injection, and so forth. The effect of the developed element technologies were evaluated and a detailed feasibility study was conducted for a refuse gas conversion power generation system using gas engine power generation for minor-scale general waste treatment facilities. In the survey of the trend of refuse-fueled power generation technologies, trend in Japan and advanced refuse-fueled power generation systems and their introduction in Europe and America were investigated. (NEDO)

Feasibility study of international cooperation in the research/development of a solar energy utilization system by the innovative solar thermochemical process; Kakushinteki solar netsukagaku process ni yoru taiyo energy riyo system no kaihatsu kenkyu ni kakawaru kokusai kyoryoku kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

At COP3 in 1997, an agreement was made to the innovative technical development/promotion by international cooperation, and the promotion of transfer of environmental technology to developing countries. Under the agreement, a feasibility study of international cooperation was made, and especially a study was conducted of the utilization/development of solar energy by the innovative solar thermochemical process. The main reason for global warming is emissions of a large amount of CO2 caused by the direct combustion of fossil fuels. Therefore, a CO2 recycle system taken up in the study enables a more substantial decline in CO2 emission (kg/kWh) per unit generation than the conventional thermal power system by composing solar methanol or solar dimethyl ether using fossil fuels including coal, water, CO2, etc. as raw materials and using solar energy as heat source, and by using this as fuel (solar fuel). CO2 can be reduced by 13% to 14% by substituting solar methanol or solar dimethyl ether produced from petroleum/methane equivalent-mol mixed raw materials for the equivalent mol coal and natural gas of the thermal power plant (CO2 recovery is not necessary). 34 refs., 47 figs., 34 tabs.

FY 1999 report on the results of the R and D of the CO2 emission control advanced system for glass waste (public use); 1999 nendo seika hokokusho (Kokaiyo). CO2 haishutsu yokuseigata hai garasu kodo riyo system no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The R and D were conducted of a low cost and low CO2 emission/consumption energy supply system which can classify glass waste into the grain size distribution required for recycled products and supply it as raw material, and the FY 1999 results were summed up. As to the R and D of the glass waste recycling supply system technology with LCA-design, study was made on the quality management of raw materials and products. Concerning the grain size of products, examined were effects of changes in revolution number of grinder on the particle size of product and production amount. In the developmental study of the application, conducted were the analysis of grain shape, preparation sintering and heavy metal elution test of crystal fine and crystal powder. In the study of artificial synthesis of the pottery stone material, almost the same product as the conventional one was obtained by dispersing/mixing G powder and aluminum hydroxide and calcinating them at 1,100 degrees C. Trial products such as teacup and ash tray were manufactured. Besides, the R and D were carried out of the use of glass waste for hydrothermally solidified materials, eco-glass block, lightweight tile/permeable block, etc. (NEDO)

Summary of results of research on magneto hydrodynamic (MHD) generation in fiscal 1977; 1977 nendo denji ryutai (MHD) hatsuden kenkyu seika gaiyo

Energy Technology Data Exchange (ETDEWEB)

NONE

1978-08-01

This is the summary of results of the research on MHD generation in fiscal 1977. In the experimental studies on MHD generators using a copper/iron magnet, the combustor of the Mark 7 generator was manufactured and installed, as were the supply systems of fuel, oxygen, air, seed, sulfur dioxide, cooling water, etc., respectively of the Mark 7 generator based on the design implemented in the previous year. In the studies on element technologies, various tests were performed, namely, immersion tests by K{sub 2}SO{sub 4} solution for electrode materials; tests of corrosion resistance, thermal shock resistance, and compatibility with electrode materials, for insulation wall materials; and material selection tests, based on a dynamic state, for consumption quantity and distribution, surface temperature and heat flow, measurement of arc spot generating critical current and electrode lowering voltage, etc.. In the research on the MHD generation system, examinations were carried out on the position of MHD generation as a total system, as well as on a system of a practical plant, MHD generation for peak load, superconducting magnet, etc. In addition, examinations were also conducted on the Mark 7 calculation, Mark 8 plan, surveys on overseas trend, etc. (NEDO)

Solar power generation test project at Sakata Nursery School (Oizumi town, Gunma prefecture); Sakata hoikuen taiyoko hatsuden field test jigyo (Gunmaken Oizumimachi)

Energy Technology Data Exchange (ETDEWEB)

Nakamoto, M.

1997-05-30

The solar power generation system was installed in fiscal 1996 on a south-facing roof of the Sakata Nursery School`s building. It has a capacity of 10kW, is used as the power source for illumination and air-conditioning, and for driving computers for children and office devices. It will demonstrate applicability and reliability of the solar system, and is expected to promote expanded application of solar systems in the local district. It is a single-crystalline modular system, operated at -20 to 40degC and connected to the low-voltage power transmission line with reverse power flow. It consists of 70 modules, with an array configuration of 5 series, 5 parallel and 2 lines, and 5 series, 4 parallel and 1 line, directed to the due south at the angle of incidence of 20deg. The cell is 103 by 103mm in size, and 96 cells are connected in series. It has a conversion efficiency of 12.7%. The optimum working voltage and current are 45.6V and 3.29A, and the maximum output is 150W. 5 figs., 3 tabs.

Experience with a biomass-fuelled power plant in Peru. Peru kokunai no biomass nenryoka no hatsuden plant no keiken

Energy Technology Data Exchange (ETDEWEB)

1992-11-01

This paper describes the result of operating a 25-kW biomass-fuelled power plant for 500 hours installed for people in a small village in jungle along the Amazon basin in Peru. The gasifier plant consists of two invert type gas combustors combined with series cyclone dryer filters. Filtration used activated carbons and cotton cloths. The fuel for the plant is wood chips containing water at 5.5% to 11% with calorific power of 20 mJ/kg, consumed at 2.0 kg of lumber per kWh (25 kWh). A gas analysis showed values of CO2 at 13%, CO at 14%, H2 at 18%, CH4 at 3%, and N2 at 52%. Because the fuel of wood chips may cause problems if the size is too large, a size of about 10[times]20[times]30 mm was selected finally. Pressure drop in the gas purifying system was measured using a manometer, which verified that a textile filtering material can be used. The gasoline engine rotation was fixed at 2700 rpm upon discussions. The gasoline engine had no need of modification except at a pipe to the carburetor. This system can be installed at any small village. 1 ref., 1 fig.

Fiscal 1998 research report. Study on the possibility of international cooperation for high- efficiency urban heat use systems for CO{sub 2} reduction; 1998 nendo chosa hokokusho. CO{sub 2} sakugen no tame no toshi netsu riyo system kokoritsuka ni kakawaru kokusai kyoryoku kanosei chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

This research aims at study on the possibility of international cooperation such as technology transfer and technical cooperation between developed countries for introduction of high-efficiency urban heat use systems into developing countries from the viewpoint of global warming control. On the case of a city in the south-eastern district in China, this research studies the principle of international cooperation such as technology transfer and research cooperation through survey on social and economical restrictions to their introduction into developing countries and study on a CO{sub 2} reduction effect by the introduction. This report describes the current technology for high-efficiency urban heat use systems in developed countries, the current energy use in Chinese cities and some issues, current heat use technologies, the case study on the potential and constraint of high- efficiency urban heat use systems, and the case study on the CO{sub 2} reduction effect of the high-efficiency urban heat use system. Expectation for Japanese technical cooperation as such international cooperation is described. (NEDO)

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 2. Research study on promotion of international cooperation; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 2. Kokusai kyoryoku suishin no tame no chosa kento

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

This paper describes the research result on promotion of international cooperation in the WE-NET project in fiscal 1996. The WE-NET project aims at development of the total system for hydrogen production, transport, storage and utilization, and construction of the earth-friendly innovative global clean energy network integrating elemental technologies. Since the standpoint is different between latent resource supplying countries and technology supplying countries, the WE-NET project should be constantly promoted under international understanding and cooperation. The committee distributed the annual summary report prepared by NEDO to overseas organizations, and made positive PR activities in the 11th World Conference and others. The committee made the evaluation on the improvement effect of air pollution by introducing a hydrogen vehicle in combination with Stanford University, and preparation of PR video tapes for hydrogen energy. Preliminary arrangement of Internet home pages, establishment of a long-term vision for international cooperation, and proposal toward the practical WE-NET are also made. 9 figs., 13 tabs.

Development in fiscal 1998 of technology to put solar systems for industrial use into practical use. Investigative research on solar system (Development, investigation and research of solar heat utilizing system); 1998 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Solar system no chosa kenkyu (taiyonetsu riyo system no gijutsu kaihatsu chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

With an objective to prepare a strategic technological development program for solar heat utilization, evaluations and discussions were given on solar heat utilization from the viewpoints of 'utilizing applications', 'demand' and 'possibility of the proliferation thereof'. In the solar heat utilization, the cost rising in approximate proportion with scale of the heat utilization must be considered as one of the predestined conditions. What can be conceived as a means to enhance the economic performance by using engineering approaches would include heat storage, elementary technologies for transportation and the standardization thereof, and the scale economy on the production side in mass production. As a required step in which the series of favorable circulation of standardization to mass production, cost reduction and large quantity proliferation can be induced, it is appropriate to assume household use with high calorie unit price as the target. The household area covers room heating and hot water supply, in which the temperature level is much lower than in industrial use. In this area, a system may be established with a conception to use solar heat as the main heat source, and calorific power by fossil fuel as the supplementary heat source. Solar heat utilization may be considered utilizable in foodstuff factories and school lunch supply centers. (NEDO)

Fiscal 1998 research report on application technology of molecular assemblies for a functional protein system (Development of advanced maintenance technology for power plants); 1998 nendo kinosei tanpakushitsu shugotai oyo gijutsu no kenkyu kaihatsu. Hatsuden shisetsuyo kokino mentenansu gijutsu kaihatsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Basic research was made on engineering reappearance and industrial use of the complex function of molecular assemblies for a functional protein system of organisms. In research on a light controllable reaction system by physicochemical technique, construction of a light controllable bioreactor is in promotion. In research on a light controllable reaction system by biochemical technique, researches are in promotion on structure and correlation analysis of photosynthetic protein complex, stabilization of an activity, and conversion of light energy to membrane transport energy using cyanobacteria as material. In research on a molecular recognition controllable reaction system in a fine membrane region, correlation analysis of the structure and function of glutamine receptor channels is in promotion. In addition, researches were made on reconstitution of endocytic micromachinery, a multi-enzyme system for synthesis of glycosphingolipids, a complex redox system by genetic engineering technique, and application technology of molecular assemblies for a functional protein system. (NEDO)

Annual cycle solar energy utilization with seasonal storage. Part 7. Examination on design and control of the system partially recovering exhaust heat of heat pump; Kisetsukan chikunetsu ni yoru nenkan cycle taiyo energy riyo system ni kansuru kenkyu. 7. Bubuntekina hainetsu kaishu wo koryoshita baai no sekkei seigyoho no kento

Energy Technology Data Exchange (ETDEWEB)

Tanaka, H; Okumiya, M [Nagoya University, Nagoya (Japan)

1996-10-27

The capacity and performance of the existing system that recovers the overall heating and cooling exhaust heat completely into a seasonal storage tank and the system that discharges the exhaust heat slightly to the outside and recovers it partially were compared and investigated. The system uses a central single-duct discharge system as an air-conditioning system. A heat pump and a flat-plate solar collector installed on the roof of a building are used as the heat source. The seasonal storage tank in the ground just under the building is a cylindrical water tank of 5 m deep with the concrete used as body. The upper surface of a storage tank is heat-insulated by a stylo-platform of 200 mm, and the lower side surface by a stylo-platform of 100 mm. Calculation when the difference in temperature used in a seasonal storage tank is set to 35{degree}C and 25{degree}C was performed for the system that has two control methods. The overall exhaust heat recovery system is almost the same in energy performance as the partial exhaust heat recovery system. The partial exhaust heat recovery system is more advantageous on the economic side. 4 refs., 6 figs., 3 tabs.

Development of hot water utilizing power plants in fiscal 1999. Development of technology to collect geothermal resources in great depths (Development of technology to produce geothermal resources in great depths); 1999 nendo nessui riyo hatsuden plant nado kaihatsu seika hokokusho. Shinbu chinetsu shigen saishu gijutsu no kaihatsu / shinbu chinetsu shigen seisan gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

With an objective to develop geothermal resources, research and development has been performed on the production technologies for the deep-seated geothermal resources, such as pressure, temperature, flow speed and density (PTSD) logging technologies. This paper summarizes the achievements in fiscal 1999. In the actual well test on the developed D-probe, it was verified that the probe operates normally under high temperature environment (342 degrees C) which exceeds the measurement limit of conductive cables (315 degrees C). In developing the PTC monitoring technology, the downhole sampler was improved, and a test was performed in the actual hole in the Hijiori area in Yamagata Prefecture. As a result, collection of hot water of about 900 mL has become possible. In developing the high-temperature tracer monitoring technology, simulation was performed keeping in mind charging the tracer into the Hijiori geothermal area, whereas specifications for charging and collecting the tracer were determined. In developing the scale monitoring technology, experiments were carried out on the fluid systems under deep geothermal conditions by using scale forming devices, by which it was indicated that silica is the important scale constituent. (NEDO)

Report on investigations in fiscal 2000 on the basic investigation on promotion of joint implementation. Project to utilize coal bed methane gas for power generation in Poland; 2000 nendo kyodo jisshi nado suishin kiso chosa hokokusho. Poland tanko methane gas hatsuden riyo keikaku

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Having the Mining Industry Restructuring Public Corporation located in the city of Katowice, Poland as the counterpart, a feasibility study has been executed on a project to utilize coal bed gas for power generation. Selected for the study are the 'Budryk coal mine' owned by KWK 'Budryk' Coal Company and the 'Pniowek coal mine' owned by Jastrzebie Coal Company. Since the Pniowek coal mine can utilize the whole quantity of recovered methane by 2001, the Budryk coal mine was selected as the object of the project. As a result of the trial calculation on the economy when the new gas power plant is installed in the Budryk coal mine, the energy substitution effect was found to equal to a power amount at transmission terminal of 6 MWh/year. Furthermore, when proliferation effect is taken into consideration, an enormous effect can be expected if new coal mines are developed and the existing cola mines will go further deeper, because the Silesian coal mine presently has the coal resource quantity of 57 billion tons and the annual gas discharge quantity of 750 million m{sup 3}. Therefore, if the technologies to recover, manage and utilize the gas are established at the Budryk coal mine, a large effect leading to an aspiration would be expected under the current situation of the structural reorganization under which the Polish coal companies are placed. (NEDO)

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 5. Development of hydrogen transport/storage technology (development of tanker for liquid hydrogen); Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 5. Suiso yuso chozo gijutsu no kaihatsu (ekitai suiso yuso tanker no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

As a part of the WE-NET project, the tanker for liquid hydrogen transport was studied. In fiscal 1996, some experiments and numerical analyses were proposed which are necessary to solve technological issues extracted in fiscal 1995 for heat insulation structure. The issue was roughly classified into vacuum and non-vacuum insulation, and their basic functions and required performance were arranged. Boil-off rate of 0.2-0.4%/d was targeted. The insulation system which applies polyurethane form (PUF) to tank surfaces and injects atmospheric N2 gas into the surrounding hold space, could achieve the targeted insulation performance by PUF of 1m in thickness. The system of vacuum panel insulation and atmospheric N2 gas injection into a hold space required the panel of 500mm in thickness because of the large effect of metallic outer panel material. The system of vacuum hold and PUF panels was faced with the essential issue for realizing and maintaining vacuum hold. The super insulation system featured by layered insulation materials and vacuum layer spaces was also strongly affected by degree of vacuum. 23 figs., 8 tabs.

Report of FY 1997 on the international cooperation project. Survey of globalization of the effective energy resource utilization technology (development of high-accuracy acceleration measurement system); 1997 nendo kokusai kenkyu kyoryoku jigyo. Energy shigen yuko riyo gijutsu kenkyu kokusaika chosa (koseido kasokudo keisoku system no kaihatsu chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This report describes effectiveness of a system for measuring the acceleration and force in high accuracy by combining a laser interference meter and a vibration stand. A possibility of pressure sensitive paper to the impact force measurement in the collision examination is also described. The results obtained in FY 1997 are as follows. For the investigation of calibration system of acceleration and force sensor, one-dimensional interferometer system has been developed, which is standardized in ISO5347 accelerometer calibration. Thus, an interference fringe processing software has been made. Moreover, construction of a three-dimensional interferometer system has been started. For the characterization evaluation of pressure sensitive papers, it was succeeded in obtaining an elasticity wave pulse maximum about 1 msec by adopting the flight body made of resin. As a result, evaluation of the force sensor in the frequency area has become possible. To calculate the displacement of a body structural material in the collision experiment, an acceleration sensor has been made for trial purposes. For the international research cooperation, the working plan of a joint research with US Texas Christian University has been concluded. 11 refs., 73 figs., 23 tabs.

Development in fiscal 1998 of technology to put solar systems for industrial use into practical use. Investigative research on solar system (Development, investigation and research of solar heat utilizing system); 1998 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Solar system no chosa kenkyu (taiyonetsu riyo system no gijutsu kaihatsu chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

With an objective to prepare a strategic technological development program for solar heat utilization, evaluations and discussions were given on solar heat utilization from the viewpoints of 'utilizing applications', 'demand' and 'possibility of the proliferation thereof'. In the solar heat utilization, the cost rising in approximate proportion with scale of the heat utilization must be considered as one of the predestined conditions. What can be conceived as a means to enhance the economic performance by using engineering approaches would include heat storage, elementary technologies for transportation and the standardization thereof, and the scale economy on the production side in mass production. As a required step in which the series of favorable circulation of standardization to mass production, cost reduction and large quantity proliferation can be induced, it is appropriate to assume household use with high calorie unit price as the target. The household area covers room heating and hot water supply, in which the temperature level is much lower than in industrial use. In this area, a system may be established with a conception to use solar heat as the main heat source, and calorific power by fossil fuel as the supplementary heat source. Solar heat utilization may be considered utilizable in foodstuff factories and school lunch supply centers. (NEDO)

Photovoltaic power generation field test at Kyodo Newspaper Co. Ltd. (Kakegawa city, Shizuoka prefecture); Kyodo shinbunsha taiyoko hatsuden field test jigyo (Shizuokaken Kakegawashi)

Energy Technology Data Exchange (ETDEWEB)

Totsuka, T.

1997-05-30

Contents are reported of the fiscal 1996 field test of a photovoltaic power generation system installed on the roof surfaces of the parking lot of the above-named newspaper company. The system is used to supply power to the lights in the company office and to a light sign tower for local activities promotion (erected jointly by cities and towns in the neighborhood). It is a 10kW plant operating on system interconnection, provided with an array of 9-series/11-parallel configuration facing due south and inclined at an elevation angle of 15deg. It is so designed that solar cell mounts are installed on two roof surfaces so that space will be secured for the parking lot. The above-mentioned LED-aided light sign tower serves the purpose of informing people of photovoltaic power generation technology and the culture, history, and industry of the local communities involved. Basic data have been collected usable for standardizing the design for example of the mount for the establishment of guidelines for reduction in the system construction cost. Data have been also obtained that will help make propositions about the effective utilization of dead space outdoors. Since the system is installed making use of roof surfaces without affecting parking lot capacity, people`s understanding of the technology has been deepened and data of long-term operation following the experimental introduction and troubles have been collected, all these helping encourage the introduction of photovoltaic power generation

Survey for making a data book on the new energy technological development (photovoltaic power generation); Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (taiyoko hatsuden)

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

Data on the photovoltaic power generation are synthetically collected, systematized, and summarized as a data book on the photovoltaic power system. Main details are as follows: photovoltaic power systems were listed by usage, by size of power generation, and by authority concerned. Significance of adopting the photovoltaic system is stated at each level of each user of the country, local governments and individuals. As to the present situation of the solar cell market, solar cells were arranged in terms of production volume by region, production volume by type, production volume by company, shipment by usage, production amount, and price. With regard to policies of each country on the photovoltaic power system, those of advanced countries including Japan were summed up. Concerning the introduction of the system in each country, examples of the introduction were made clear, and at the same time the estimated volume of and the target for introduction of the photovoltaic power system were summarized. In respect to the subsidy system for the introduction of the photovoltaic power system, arranged were the subsidy system, the preferential tax system and the loan system.

Achievement report on research and development in the Sunshine Project in fiscal 1976. Comprehensive discussion on hydrogen utilizing subsystems and researches on peripheral technologies (Research on fuel cell systems); 1976 nendo suiso riyo subsystem no sogoteki kento to shuhen gijutsu ni kansuru kenkyu seika hokokusho. Nenryo denchi system kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-01

This paper discusses hydrogen fuel cell systems. In the economic performance of fuel cells, the ratio of fuel cost accounting for in the power generation cost is as very high as 66% or higher to 82%, if hydrogen unit cost is in the range of 20 to 50 yen per Nm{sup 3}. Enhancing the power generation efficiency contributes more greatly to reduction of the power generation cost than by reducing the construction cost. There should be no much influence on the power generation cost if a system lasts four to five years. The paper also discusses the discrete type power generation system. Discussions were given on a waste heat recovering fuel cell system using as the model an office building of 16 stories above the ground, with one basement and a total floor area of 16,000 m{sup 2}. If the system can be constructed in such a way that the fuel cell capacity is made slightly larger than that corresponds to power load, and whole air conditioning load can be taken care only by waste heat by using a heat pump, the auxiliary heat source can be made smaller, and the overall fuel conservation ratio can be larger, thus the fuel was found saved by 40% than in existing systems. In using hydrogen in automobiles, weight problem will emerge if high-pressure hydrogen or metallic hydride is used for hydrogen storage. Liquefied hydrogen is light in weight, but large in volume. Development is desired on high-performance hydrogen absorbing alloys. (NEDO)

Report on achievements in fiscal 1975 in Sunshine Project. Feasibility study on a volcanic electric power generation system; 1975 nendo kazan hatsuden hoshiki ni kansuru feasibility study seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

The survey and study activities in the second year for the feasibility study (FS) on a volcanic electric power generation system consist of the following three parts: Part I, the case study on Satsuma Iojima Island, Part II, case study on Toyohane Mine, and Part III, FS on remote measurement of volcanic fume. The Part I, which has been performed subsequently from the previous fiscal year, has carried out the following surveys at different sites: meteorological, hydrological and underground water surveys, natural earthquake survey, fume and hot spring surveys (on-shore and off-shore), heat dissipation survey, tide level survey, underground structure survey (electric exploration), natural environment (vegetation) survey, thermal image survey, and social environment survey. The part II has begun surveys starting this fiscal year, because a considerable number of high temperature portions are already known to exist in the gallery, where there is a possibility of dry and hot rocks to exist without relationship with the present volcanic activities. This fiscal year has carried out mainly putting into order and analyzing the materials having been obtained in association with mine developments. The part III has been performed succeeding the 'FS on technologies to measure volcanic fume energy' done by the Japan Mining Industry Association. Some experiments were also executed at the Aso volcano. (NEDO)

Report on achievements in fiscal 1975 in Sunshine Project. Feasibility study on a volcanic electric power generation system; 1975 nendo kazan hatsuden hoshiki ni kansuru feasibility study seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

The survey and study activities in the second year for the feasibility study (FS) on a volcanic electric power generation system consist of the following three parts: Part I, the case study on Satsuma Iojima Island, Part II, case study on Toyohane Mine, and Part III, FS on remote measurement of volcanic fume. The Part I, which has been performed subsequently from the previous fiscal year, has carried out the following surveys at different sites: meteorological, hydrological and underground water surveys, natural earthquake survey, fume and hot spring surveys (on-shore and off-shore), heat dissipation survey, tide level survey, underground structure survey (electric exploration), natural environment (vegetation) survey, thermal image survey, and social environment survey. The part II has begun surveys starting this fiscal year, because a considerable number of high temperature portions are already known to exist in the gallery, where there is a possibility of dry and hot rocks to exist without relationship with the present volcanic activities. This fiscal year has carried out mainly putting into order and analyzing the materials having been obtained in association with mine developments. The part III has been performed succeeding the 'FS on technologies to measure volcanic fume energy' done by the Japan Mining Industry Association. Some experiments were also executed at the Aso volcano. (NEDO)

FY 1999 R and D project on the global environmental industry technology. Report on the results of the R and D on the catalytic hydrogenation use CO2 fixation/effective utilization technology; 1999 nendo sesshoku suisoka hanno riyo nisanka tanso seika hokokusho. Koteika yuko riyo gijutsu kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of reducing CO2 emitting together with the consumption of fossil fuels, study was conducted on the use of CO2 by converting it to chemical substances such as methanol, etc., and the FY 1999 results were outlined. In the development of the CO2 separation membrane technology, data were obtained on effects of scaling-up by module with a membrane area of 4.9m{sup 2} and on design conditions. Further, in the experiment using mock exhaust gas, it was confirmed that the performance had been kept up for 3,000 hours or more. In the development of catalytic hydrogenation technology, the basic data for enlargement were accumulated. Moreover, the activity stabilized about 18,000 hours was confirmed, and the catalytic life was estimated at more than 3 years. In the development of large quantity hydrogen production/supply technology, assembly/operation of 7,500cm{sup 2} x 6 electrolytic cells were conducted, and it was confirmed that the hydrogen production capacity per cell was 3Nm{sup 3}/h. The final target for enlargement was achieved. In the study of the total system, the conceptual design was made for 'high concentration CO2 containing natural gas use CO2 recovery utilization system,' and 'biomass resource use methanol synthesis system.' (NEDO)

FY 1999 R and D project on the global environmental industry technology. Report on the results of the R and D on the catalytic hydrogenation use CO2 fixation/effective utilization technology; 1999 nendo sesshoku suisoka hanno riyo nisanka tanso seika hokokusho. Koteika yuko riyo gijutsu kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of reducing CO2 emitting together with the consumption of fossil fuels, study was conducted on the use of CO2 by converting it to chemical substances such as methanol, etc., and the FY 1999 results were outlined. In the development of the CO2 separation membrane technology, data were obtained on effects of scaling-up by module with a membrane area of 4.9m{sup 2} and on design conditions. Further, in the experiment using mock exhaust gas, it was confirmed that the performance had been kept up for 3,000 hours or more. In the development of catalytic hydrogenation technology, the basic data for enlargement were accumulated. Moreover, the activity stabilized about 18,000 hours was confirmed, and the catalytic life was estimated at more than 3 years. In the development of large quantity hydrogen production/supply technology, assembly/operation of 7,500cm{sup 2} x 6 electrolytic cells were conducted, and it was confirmed that the hydrogen production capacity per cell was 3Nm{sup 3}/h. The final target for enlargement was achieved. In the study of the total system, the conceptual design was made for 'high concentration CO2 containing natural gas use CO2 recovery utilization system,' and 'biomass resource use methanol synthesis system.' (NEDO)

Indices for planning wind power generation; Furyoku hatsuden no keikaku shihyo

Energy Technology Data Exchange (ETDEWEB)

Takeuchi, H

1997-11-25

Outlined herein are status of wind power generation development, indices for planning development, and actual development results. At present, wind power generates electric power of 6,781MW worldwide. USA has been rapidly developing wind power generation since enactment of the PURPA law, and accounted for 25% of the world output in the past. However, the county is recently unseated from the world top position by Germany, which has been extensively developing wind power generation since enactment of the EFL law to reach 1,799MW. In Japan, electric power companies, local governments and public institutions have been positively introducing wind mills since 1992, when Tohoku Electric Power Co. built Ryuhi Wind Park, now generating a total power of 15MW by 64 units located at 33 different points. According to the surveys by NEDO on wind conditions, there are a number of districts suited for wind mills in Hokkaido, Tohoku, Okinawa and sea areas in Honshu. The indices described herein for planning wind power generation include rotor diameter, tower height, speed of rotation, weight, power to be generated, utilization and service factors, noise level, and investment and running costs. In the present state of the development of wind power generation in Japan, development points are 33, generated ouptut 15,097kW and units 64. 14 figs.

Study of an optimization of regeneration for an absorbent used in the solar desiccant cooling system; Taiyonetsu riyo desiccant reibo ni mochiirareru kyushuzai saisei tokusei no saitekika ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Saito, Y [Osaka Institute of Technology, Osaka (Japan)

1997-11-25

A desiccant cooling system uses concentrated aqueous solution of an absorbent to reduce humidity, hence the resultant absorbent solution becomes dilute. Regeneration of the dilute solution uses solar heat, where the regeneration characteristics are affected by solution temperature, vapor pressure, water content, air-liquid flow rate, and other factors. Therefore, mutual relationship among these different factors were investigated, and an optimum operating condition was discussed. The regeneration characteristics of the absorbent is strongly affected by temperature of triethylene glycol (TEG). This is because vapor pressure, Ps, in the TEG aqueous solution increases as the TEG temperature rises. This means that preheating the solution is effective in regenerating the absorbent. As the regeneration progresses, the water content, Ww, decreases, and the regeneration rate decreases. This is because of reduction in the Ps in association with decrease in the Ww of the TEG. This suggests that it is important in the absorbent regeneration to reduce flow rate of the TEG aqueous solution as low as possible. Raised air temperature reduces difference in vapor partial pressure between the TEG and the air, resulting in reduced regeneration rate. 5 refs., 9 figs.

Research and development of photovoltaic power system. Study of carrier dynamics in a-Si from optical and optoelectronic properties; Taiyoko hatsuden system no kenky kaihatsu. Amorphous silicon no koden tokusei to sono carrier dynamics no kogakuteki kenkyu

Energy Technology Data Exchange (ETDEWEB)

Hamakawa, K [Osaka University, Osaka (Japan). Faculty of Engineering Science

1994-12-01

This paper reports the result obtained during fiscal 1994 on research on an optical study of optoelectronic properties of amorphous silicon and its carrier dynamics. Studies have been performed on elucidation of the optoelectronic conversion mechanism in an a-Si film p-i-n junction system and the relationship of the mechanism with the optoelectronic properties. In the studies, optically induced defect level distribution was evaluated by using the modulated optical current spectroscopy, and confirmation was made on model forecast and qualitative agreement, such as large increase in neutral defect levels in association with beam irradiation. In research on elucidation of a film forming mechanism for a-Si based alloys, and material property control, a high-sensitivity reflective infrared spectroscopy was used to observe mechanisms such as treatments and processes given in device fabrication. In research on optical and optoelectronic properties of an s-Si alloy thin film by using the modulated spectroscopy, a new evaluation technology dealing with amorphous semiconductors was developed. The technology separately evaluates carrier migration factors of electrons and holes by combining polarization angle dependence of electro-absorption signals with hole migration measurements. 4 figs.

Field tests of photovoltaic power generation at the Fukuroi Mitsukawa Hospital in Fukuroi City, Shizuoka Prefecture; Fukuroishi Mitsukawa byoin taiyoko hatsuden field test jigyo (Shizuokaken Fukuroishi)

Energy Technology Data Exchange (ETDEWEB)

Namikawa, K

1996-05-30

A 30 kW-scale photovoltaic power generation system has been installed on the roof of an existing hospital. Various data have been collected to prove the applicability and stability of the system. The system was designed so as to be suitable for installing on the roof with high-wind. Structures of the frame and base were decided by considering the load and high-wind. The selection of design and materials for this system on the roof with high-wind due to the topography is expected to be technically proven. This field test is the first for private hospitals. The power can be supplied to medical equipment during outage at disasters. The introduction of a system having the self-function is also the first case. Brochure illustrating the outline of this system and the mechanism of photovoltaic power generation system was made and distributed to the public offices, hospitals, and visitors inside and outside the prefecture. Effectiveness of the photovoltaic power generation system has been positively diffused. A display board showing various conditions is placed in the entrance lounge, to diffuse and promote the system. 12 figs., 1 tab.

Achievement report for fiscal 1997 on the development of technologies for utilizing biological resources such as complex biosystems. Development of technologies for producing substitute fuel for petroleum by utilizing organisms; 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

Technologies of producing useful substances using the substance decomposing/producing functions of complex biosystems and methods of their handling are developed. In the utilization of microbes in the digestive tracts of termites and longicorns, it is made clear that several kinds of termites cleave the {beta}-O-4 ether linkage. In relation to technologies for wood decomposing complex microbial system construction and complex vector system development, a screening system is constructed in which strains that exhibit complex actions are combined. Concerning the advanced utilization of tropical oil plants, conditions are determined for inducing callus out of oil palm tissues. Out of oil palm sarcocarp tissues, mRNA (messenger ribonucleic acid) is isolated for the construction of a cDNA (complementary deoxyribonucleic acid) library. For the purpose of isolating a powerful promoter, a partial base sequence is determined for ubiquitin that frequently expresses itself in cells. A pathogenic bacterium ailing the oil palm is sampled for identification, and it is inferred that the bacterium is a kind of Ganoderma boninense. (NEDO)

Research and development of photovoltaic power system. Research on surface passivation for high-efficiency silicon solar cells; Taiyoko hatsuden system no kenkyu kaihatsu. Hyomen passivation no kenkyu

Energy Technology Data Exchange (ETDEWEB)

Saito, T [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan). Faculty of Technology

1994-12-01

This paper reports the result obtained during fiscal 1994 on research on surface passivation of high-efficiency silicon solar cells. In research on carrier recombination on SiO2/doped silicon interface, measurements were carried out on minority carrier life with respect to p-type silicon substrates with which phosphorus with high and low concentrations are diffused uniformly on the surface and non-uniformly on the back and then oxidized. The measurements were performed for the purpose of evaluating the carrier recombination at p-n junctions. Effective life time of oxidized test samples increased longer than that of prior to the oxidization as a result of effect of surface passivation contributing remarkably. In research on reduction in carrier recombination on SiO2/Si interface by using H radical annealing, experiments were conducted by using a method that uses more active H-atoms. As a result, it was revealed that the reduction effect is recognized at as low temperature as 200{degree}C, and photo-bias effect is also noticeable. Other research activities included analytic research on minority carrier recombination on micro crystalline silicon/crystalline silicon interface, and experimental research on evaluation of minority carrier life of poly-crystalline silicon wafers. 6 figs.

Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC)

Energy Technology Data Exchange (ETDEWEB)

Konno, K [Center for Coal Utilization, Japan, Tokyo (Japan); Saito, Y [Mitsui Mining Co. Ltd., Tokyo (Japan); Nagaya, Y [Mitsui Construction Co. Ltd., Tokyo (Japan)

1996-09-01

In order to utilize more effectively coal ash whose generation amount is increasing year after year, studies have been made on a technology to manufacture and utilize a high-strength substance solidified under normal temperature by utilizing hydration reaction of pozzolan system (Poz-O-Tec). The study works have been done as a subsidy operation of the Agency of Natural Resources and Energy, and were completed in fiscal 1995. Poz-O-Tec is a wet powder made of coal ash and stack gas desulfurization sludge (gypsum) added and mixed with lime and an adequate amount of water, which solidifies by hydration as pozzolan does. The same method as used for ordinary sands may be used as the basic application method. Because this is the material whose strength increases after construction, thickness of construction may be reduced smaller than in constructions using soils and sands. Test constructions of about sixty cases have been carried out to date, typically represented in use as a road bed material, banking, and a base material for water-barrier gutters. High-strength solid material which is stable under normal temperature may be obtained by adjusting calcium content. As a result of its effectiveness in practical use having been verified, a certificate of technological judgment has been issued for the material by the Civil Engineering Research Center. 3 refs., 11 figs., 2 tabs.

Research program for environmentally-friendly coal utilization system. Follow-up project for simplified desulfurizers (Weifang Chemical Industry Works); Kankyo chowagata sekitan riyo system donyu shien jigyo. Kan`i datsuryu setsubi ni kakawaru follow up jigyo (Weifang kakosho)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

To suppress the emission of environmental pollutants from coal utilization in China and to contribute to stable security of Japan`s energy, demonstration of clean coal technology and consolidation of diffusion base to be introduced into China have been promoted. Demonstration program for diffusing simplified desulfurizers has been promoted. For accelerating the achievement, experts of desulfurizers were delegated to Weifang Chemical Industry Works, to support the program. Exhaust gas is introduced from boiler via water spray dust remover, suction fan and centralized stack into absorption tower of the simplified wet-type desulfurizer. In the ascending process, the exhaust gas contacts with absorbent, to remove SO2 and dust. The absorbent is blasted up through the spray nozzle. The absorbent is oxidized by the air into sulfate ion in the liquid chamber at the lower part of tower, and neutralized by hydrated lime to form gypsum. Through the continuous operation for two years, understandings were remarkably increased. However, good treatment of the tax system is required for further diffusion. Though there are no problems for ordinary start and stop, emergency operation is insufficient. There are some problems in the maintenance due to the delay of finding failures. 16 figs., 1 tab.

FY 1998 annual summary report on International Clean Energy Network Using Hydrogen Conversion (WE-NET) system technology. Subtask 9. Research and evaluation of innovative and leading technologies; 1998 nendo seika hokokusho. Suiso riyo kokusai clean energy system gijutsu (WE-NET) subtask 9 (kakushinteki, sendoteki gijutsu ni kansuru chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In order to make useful suggestions and proposals for the International Clean Energy Network Using Hydrogen Conversion (WE-NET) project and thereby to promote the research and development activities, the innovative and leading technologies have been studied, investigated and evaluated. In FY 1998, a total of 6 proposals were collected, and evaluated to prioritize for the conceptual studies. These are related to methanol-fueled power generation turbine system, conceptual design of high-efficiency production system for high-efficiency solar cell by the 10 GW/y scale production process, investigation of potential of wind power, CO2 recycling methanol fuel cell, investigation of catalysis materials for hydrogen combustion and catalytic combustion systems, development of reversible high-temperature steam electrolysis cell/solid oxide fuel cell by the synthesis from aqueous solutions, and mobile heat recovery hydrogen production system. Promising technologies to be reflected on the WE-NET project were examined, based on the new technologies acquired from the research and investigation so far. As a result, two candidates were selected; hydrogen liquefaction by magnetic refrigeration technology, and catalytic combustion gas turbine. (NEDO)

FY 1979 Annual report on Sunshine Project results. Fabrication designs for a solar thermal power pilot plant with curved-surface type light-collecting system (Part 2); 1979 nendo taiyonetsu hatsuden (kyokumen shuko hoshiki) seika hokokusho. 2. Pilot plant no seisaku sekkei

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

Part 1 of this report (JN0040511) describes basic and fabrication design specifications for operation and control of a solar thermal power pilot plant with curved-surface type light-collecting system, centered by computer for the plant control. Part 2 follows Part 1, which describes basic fabrication design specifications (Chapter I), system design specifications (Chapter II), hardware specifications (Chapter III) and attachments (Chapter IV), to contain the other attachments: daily processing specifications, computer-aided processing function specifications, operator request function specifications, summary data collection function specifications, basic structures of the software systems, basic specifications for computer inputting/outputting, failure display panel drawings, COD/channel base dimension drawings, console inputting/outputting dimension drawings, T/W disc dimension drawings, viewer external dimension drawings, cassette MT structure dimension drawings, operator console panel drawings, power source panel dimension drawings, program specifications GFC, 4 subroutine specifications GFC (R sub), table list, table structure drawings, and analysis of system characteristics (light- and heat-collection system simulation). (NEDO)

FY 1977 Annual report on Sunshine Project results. Research and development of photovoltaic power generation systems (Research and development of vertically drawn ribbon crystals of silicon); 1977 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Silicon tatehiki ribon kessho no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1978-03-31

This project is aimed at establishment of ribbon crystal production techniques and development of photovoltaic power generation systems incorporating the ribbon crystals, in order to greatly reduce cost of photovoltaic power generation systems. The research efforts in this fiscal year is focused on development of the techniques for continuously growing the ribbons, to attain the above goal by accelerating growth of the ribbon crystals in unit time and clarifying, in the early stage, the problems to be solved before commercializing the ribbon crystals for the future solar cells. The major research results are (1) development of the method for vertically drawing ribbon crystals of silicon, and (2) analysis of the vertically drawn ribbon crystals of silicon. For the item (1), the technological development efforts are focused on continuously drawing mechanisms and furnace for continuous drawing, with the structural studies as the center for the former and solution of heat-related problems for the latter, which eventually lead to development of a 800 mm long ribbon crystal passing over the roll. For the item (2), the crystal structure is analyzed by the electron channeling pattern method. The results suggest that use of a p-type substrate can improve average efficiency of the ribbon crystal type solar cell. (NEDO)

FY 1992 report on the results of the demonstration test on the methanol conversion at oil-fired power plant. Demonstration test on a methanol reformation type power generation total system; 1992 nendo sekiyu karyoku hatsudensho metanoru tenkan tou jissho shiken. Metanoru kaishitsu gata hatsuden total system jissho shiken

Energy Technology Data Exchange (ETDEWEB)

NONE

1993-03-01

For the promotion of introduction of methanol to oil-fired power plant, based on the results of the element study, operational study was conducted of a 1,000kW class total system plant for which each of the elements was combined, and the FY 1992 results were summarized. In the operational study, data on various kinds of operational study were sampled of each of the simple cycle/regeneration cycle of liquid methanol and simple cycle/regeneration cycle of gas methanol. As to the reformed gas/water injection/regeneration cycle, all functions as a total system plant worked normally, and it was confirmed that the reformed gas/water injection/regeneration cycle operation could be made possible. Besides, the following were conducted: confirmation test on the performance of the developmental catalyst used in the operational study by bench-scale test device, trial operation for adjustment of gas turbine and combustion study such as the performance test in each cycle, manufacture/study of catalyst for the total system, study for longevity of catalyst for the total system, etc. (NEDO)

Fiscal 1976 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on new type solar cell); 1976 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Shingatashiki taiyo denchi no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-05-30

This report describes the fiscal 1976 research result on new type solar cells for photovoltaic power systems. On junction formation, the solar cell fabricated by spray coating showed output characteristics equivalent to that by rotary coating or phase diffusion, and inexpensive coating liquid, 1/40 of commercially available liquid in price, showed a sufficient result, however, the conversion efficiency of P{sup +}/N elements was insufficient. Schottky barrier polycrystal Si thin film was suitable for large-area elements without any property degradation. Small grain boundary density of polycrystal layers was also necessary. Temperature characteristics of collector element structure with a comb electrode were calculated theoretically. Change in diffusion length of minority carriers due to temperature well agreed between measured and calculated ones. Optimization calculation was also carried out. The size, curve, weight and transmissivity of plastic and glass materials for solar cell packaging were evaluated by continuous outdoor exposure tests. Fluorinated ethylene-propylene, methyl methacrylate and polycarbonate plates and glass were the most promising materials because of less deformation. (NEDO)

Energy supply/demand structure development survey project / comprehensive survey on energy supply/demand development. FY1997 survey on techniques for pyroelectric power generation systems; Energy jukyu kozo kodoka chosa jigyo / energy jukyu kodoka sogo chosa. 1997 nendo shoden hatsuden system no gijutsu chosa seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-05-01

Pyroelectric conversion systems were surveyed as the techniques for effective utilization of low-temperature waste heat sources. Described herein are the principle of pyroelectric power generation, including pyroelectric phenomenon, origin of pyroelectricity in polymers, and pyroelectric polymers and copolymers; utilization of the pyroelectric phenomenon, including hysteresis of pyroelectric materials, general pyroelectric conversion principle, pyroelectric conversion cycle, analysis of power output by an Olsen cycle, comparison with a steam engine, and power outputting methods; pyroelectric conversion systems, including heat regeneration method, plate type pyroelectric conversion devices using the heat regeneration method, and voltage controlling methods; and pyroelectric conversion outputting, including calculations of power output and loss, conduction-caused loss, pumping loss, and pyroelectric converter efficiency. Other items described herein include conceptual designs of 1 and 100 kW pyroelectric converters for utilization of waste heat, and current status of pyroelectric converter development at CANMET Energy Technology Center. (NEDO)

FY 1974 report on the results of the Sunshine Project. Comprehensive study of hydrogen use subsystem and study on the periphery technology (Study on fuel cell system); 1974 nendo suiso riyo subsystem no sogoteki kento to shuhen gijutsu ni kansuru kenkyu seika hokokusho. Nenryo denchi system kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-03-01

In this paper, surveys were conducted on 'the developmental situation of the body of fuel cell' and 'the performance required for the inverter connecting fuel cell and electric power system and the peripheral device, and fuel cell.' However, the economical evaluation was to be made at an appropriate time, and the FY 1974 survey was limited to the technology. The results of the investigational study made based on the above-mentioned policy were described in and after Chapter 2. In Chapter 2, described were the prospects of fuel cell and the guide for this fiscal year. In Chapter 3, the relative evaluation of various kinds of fuel cells in terms of the following: electrode structure, catalyst, cell stack, auxiliary machine, dynamic characteristics of cell, efficiency, life, reliability, maintenance, safety, environmental safety, construction cost, maintenance/running cost, and material cost. In Chapter 4, the present technical situation of inverter and the peripheral device, and the situation of the future R and D in Japan and abroad. In Chapter 5, the positioning of the fuel cell system in the hydrogen energy system, and various kinds of performance required for structural elements. (NEDO)

Report `A field test project for the disaster prevention type photovoltaic power generation (Kobe city, Hyogo prefecture)`; `Bosaigata taiyoko hatsuden field test jigyo (Hyogoken Kobeshi)` hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-09-12

An experiment was conducted on the introduction of the disaster prevention type photovoltaic power system provided with storage batteries to public facilities, etc., considering not only the use of new energy from the environmental aspect, but the emergency use. In fiscal 1995, 5kW-output photovoltaic power systems were installed on the rooftop of Hiyodori and Takamaru regional welfare centers and a 30kW photovoltaic power system on the rooftop of the Hyogo Ward Office. Demonstrative tests of these systems started for collection of various data. Now that the systems were installed at the regional welfare center managed mostly by regional citizens and the ward office which is an administrative office familiar with regional residents, the understanding of and familiarity with the photovoltaic power system were obtained from regional residents, and also people were enlightened on the use of solar energy in such a point as economization of power rates using the interconnected power system. Further, for life supports, it was made possible to secure minimum electric power in emergency and to secure functions of disaster prevention spots. 3 figs.

Improvement of the efficiency characteristics on the photovoltaic generation system based on a generation control circuit. Part 3. Research on architectural systematization of energy conversion devices; Dosaten seigyo kairo wo mochiita taiyo denchi hatsuden koritsu no kaizen. 3. Energy henkan no kenchiku system ka ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Shimizu, T.; Ito, N.; Kimura, G.; Fukao, S.; Sunaga, N.; Tsunoda, M.; Muro, K. [Tokyo Metropolitan University, Tokyo (Japan)

1996-10-27

In introducing a photovoltaic power generation system to urban homes, the general practice is to install a large number of solar cell panels on the roof. However, as is often the case, a part of the solar cell panels is in the shadows (partial shadows) of neighboring homes, electric poles, cables and trees. Under the circumstances, studies were made on the numerous changes in the lowered generating capacity of individual solar cells by the partial shadows. Developed by the authors were the generation point control principle, in which the generation point was individually controlled on serially connected plural solar cell modules, and a practical circuit system based on that principle with the effects verified in a field test. In the test, the generated power of the system was 476W without partial shadows, and was 323W with partial shadows and without the operation of the generation point control circuit, increasing to 406W with partial shadows and with the operation of the circuit. As a result, compared with the case where no generation point control circuit was employed, the effectiveness of the proposed circuit was evident. 3 refs., 10 figs., 1 tab.

FY 1999 report on the results of the project on the industrial science technology R and D. Development of utilization technology of biological resources such as bioconsortium system (Development of the petroleum substituting fuel production technology using living organisms); 1999 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo. Fukugou seibutsukei tou seibutsu shigen riyo gijutsu kaihatsu (Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu) seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of establishing the high-grade utilization technology of unused seaweed/algae and production technology of useful substances using high-grade functions of bioconsortia, study was conducted, and the FY 1999 results were reported. In the analysis of the ocean environment adaptation mechanism, the R and D were made of a selection method of the marine microbial consortia using korormicin. In the study of the high-grade utilization technology of unused resources/substances such as marine-producing algae, several tens of the carrageenase producing microbial consortia were acquired from the surface of seaweed, and some carrageenase producing bacteria and non-producing bacteria were acquired by isolating as pure strains. In the study of the petroleum substituting useful resource production technology, developed was a monitoring system of the environmental stress using marine-product invertebrate/micro-algae symbiotic system. In the study of the high-grade utilization of large useful algae, elucidation of the related genes, fabrication of variants and analysis of genes were carried out for the bacterium BUP-7 which indicates activity of growth acceleration/shape formation of seaweed. (NEDO)

Report on the results of the FY 1999 R and D of polymer electrolyte fuel cells. Development of the power system technology (Development of high voltage several 10 kW class dispersed generation system); 1999 nendo kotai kobunshigata nenryo denchi no kenkyu kaihatsu seika hokokusho. Hatsuden system gijutsu no kaihatsu (koden'atsugata suju kW kyu bunsan dengen system no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The paper described the results of the FY 1999 development of polymer electrolyte fuel cell and several 10 kW class dispersed generation system. The humidification of the cell body is the internal humidification method in which water is directly supplied to cell, which makes the cell life long. The cooling using latent heat of vaporization of the water supplied makes the temperature distribution inside the cell face homogeneous. In the test for long life, the system was stably operated at voltage lowering speed of 11mV/1000h. The optimization of water supply structure in the stack increases the latent heat cooling amount and makes the temperature distribution inside the cell face homogeneous. The reduction of CO concentration in reformed gas is extremely important for improvement of cell performance and long-term stabilization of cell voltage. By the two-stage structure selective oxidation device, the CO concentration at inlet, 5,000 ppm, can be reduced to below 10 ppm at outlet. In the demonstrative experiment on the several 10 kW class dispersed generation system, efforts for reduction in size of structural equipment and package were made, and a possible size of 200*150*180cm was obtained. Based on the chart of 30kW class system flow, the heat material balance was analyzed, and the power generation efficiency of 40% at a.c. sending end and overall efficiency of 80% were confirmed. (NEDO)

Outline of fiscal 1970 achievements in research on MHD power generation; 1970 nendo MHD hatsuden kenkyu seika gaiyo

Energy Technology Data Exchange (ETDEWEB)

NONE

1970-07-01

Compiled are the results of studies conducted in fiscal 1970 on MHD (magnetohydrodynamic) power generation. In the operation test and modification of the 1000kW-class MHD power generator, modification is carried out involving the combustion system, seed collecting method, and power generation channel, and reviews through experiments are conducted about the analysis and control of the boundary layer structure. In the operation test of the MHD power generator designed for prolonged operation, a test operation for resistance to heat and seeds continues more than 100 hours using a cold wall type power generation channel constituted of water cooled ceramics, and the ceramics are analyzed for failure and loss. Studies are also conducted involving MHD power generator heat exchangers, seed collecting methods, electrode materials for MHD power generators, heat-resistant materials for MHD power generators, thermal performance rating for MHD power plants, etc. In the research and development of superconductive electromagnets, superconductive electromagnets are developed and tested for 1000kW-class MHD power generators, and studies are conducted on turbine type helium liquefiers, superinsulated superconductive electromagnetic field generators, etc. (NEDO)

Achievement report for fiscal 2000 on the phase II research and development for the hydrogen utilizing international clean energy system technology (WE-NET). Task 1. Investigations and researched on system assessment; 2000 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET) dai 2 ki kenkyu kaihatsu. Task 1. System hyoka ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This paper describes the achievements in fiscal 2000 from the WE-NET Phase II for Task-1. Technologies drawing attentions relate to fuel cell driven automobiles and hybrid automobiles in the field of utilizing hydrogen derived from reproducible energies and fossil energies, and fuel cell co-generation and micro gas turbine co-generation in the field of electric power generation. Hydrogen reformed from gasoline on board the automobile as the fuel for fuel cell driven automobiles, hydrogen as a by-product of coke furnace off-gas (COG), and reproducible energy hydrogen have the same fuel consumption performance as in the hybrid automobiles. Particularly the COG is low in cost, and has large supply potential. Liquefied hydrogen is as promising as compressed hydrogen in view of the cost for automotive hydrogen supply stations. What has high economic performance as the self-sustaining systems for islands are photovoltaic and wind power generation, and the system using hydrogen as the secondary energy. Since much of the reproducible energies is used for electric power demand in Japan, the by-product hydrogen and the reformed hydrogen in an amount of 9.3 billion Nm{sup 3}/year would take care of majority of the demand in view of the short time period. For a longer time span, hydrogen originated from the reproduced energies in the Pan-Pacific Region should be introduced. (NEDO)

Report on achievements in fiscal 1999. Development of technology to put photovoltaic power generation system into practical use by international cooperation project (Executive Committee meetings for treaty of executing IEA photovoltaic power generation system research cooperation program - IEA/PVPS); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kokusai kyoryoku jigyo (IEA taiyoko hatsuden system kenkyu kyoryoku program jisshi kyotei (shikko iinkai))

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The 13th and 14th Executive Committee meetings were held. The resolutions adopted at the 13th Executive Committee meeting (Lausanne, Switzerland, May 3 through 5, 1999) were the approval of the Task VIII as a new IEA/PVPS task, the feasibility study on large scale photovoltaic power generation utilizing unused land such as desert (the operating agent country being Japan headed by Mr. Kando, chief researcher at NEDO and Professor Kurokawa) and the Task IX, proliferation of photovoltaic power generation under coordination with developing countries (the operating agent country being England headed by Mr. Bernard McNelis (IT Power) and that the task I operating agent country is substituted jointly by the three countries of Australia, Holland and Switzerland for six months. The resolutions adopted at the 14th Executive Committee meeting (Oslo, Norway, October 18 through 20, 1999) were appointing Australia as the Task I operating agent country headed by Mr. G. Watt, setting a web site of IEA/PVPS, issuing the annual report for fiscal 1998 in early 2000, and holding the Executive Committee meetings for fiscal 2000 in Canada (Quebec, April 17 through 19, 2000), and Italy (October 16 through 18, 2000). (NEDO)

FY 1999 report on the potential survey of the environmentally friendly type coal utilization system. Potential survey of the environmentally friendly type coal utilization system in the Philippines; 1999 nendo chosa hokokusho. Kankyo chowa gata sekitan riyo system kanosei chosa (Firipin ni okeru kankyo chowa gata system kanosei chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of contributing to working out a master plan for the introduction of the environmentally friendly type coal utilization system in the Philippines, analysis was made of the state of coal use/the state of spread by industry mostly including the electric power industry, cement industry and residential/commercial use fuel sector. In the Philippines, the amount of coal use has rapidly been increasing since coal-fired power plants started operation. For the promotion of the use of domestic coals, it is important to reform low grade coal. Moreover, the technology is required which copes with the reinforced regulation against SOx emissions. In the cement industry, coal and coal ash have not yet been effectively used. Therefore, the following measures should be taken to increase the competitive force: energy conservation measures, reinforcement of environmental measures such as dust prevention, and effective use of the fly ash emitted from power plants. In general households and small-/medium-sized industries such as tobacco drying, they still use a large amount of charcoals and firewood, which is approximately 86% of the residential/commercial use energy. There is a growing tendency for the development/spread of coal briquette as substituting energy. (NEDO)

Report on the fiscal 1997 result of the Japan-China joint demonstration project of environment-friendly cost utilization systems. Low grade coal combustion system (Zhejiang Huba Co. Ltd.); 1997 nendo seika hokokusho kankyo chowagata sekitan riyo system kyodo jissho jigyo. Teihin`itan nensho system ni kakawaru jissho jigyo

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This demonstration project aims at reduction of pollutants derived from coal utilization in China by demonstration of CCT to be diffused in China and preparation of diffusion bases, and stable import of energy for Japan. A low-grade coal combustion system burns low-grade coal by use of an internal circulating fluidized bed boiler which burns coal by uniform mixing and circulation of coal and some particles such as limestone and ash. Main specifications of the boiler are as follows: evaporation rate of 35t/h, steam pressure of 3.82MPa (39.0kg/cm{sup 2}), steam temperature of 450degC, water supply temperature of 150degC, internal circulating fluidized bed combustion type, boiler efficiency of 75%, and desulfurization rate of 90% or more. Main properties of low-grade coal are as follows: calorific value of 1830kcal/kg, coal size of 10mm or less, total water content of 2.5%, total S content of 2.7%, ash content of 67.7%, limestone purity of 50% or more, and stone size of 3mm or less. The results in fiscal 1997 are as follows: field survey and arrangement, basic planning and design, design, production and procurement of equipment, training, and dispatch of field supervisor. 26 figs., 3 tabs.

Report on 1979 result of Sunshine Project. R and D on solar power generation system (R and D on particle non-accelerated growth type silicon thin film crystal); 1979 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Ryushi hikasoku seichogata silicon usumaku kessho no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

The R and D was intended to establish the manufacturing technology of a particle non-accelerated growth type silicon thin film crystal, for the purpose of developing a technology for enabling the production of a solar power generation system, whose price is practically 1/100 compared with that of building the system with the current technology, and the R and D was also intended to build the system using such silicon material. While a simple purification method was examined for a low purity metallurgical-grade silicon, a solar-grade silicon (SOG) was developed as the new material this year, with a solar cell experimentally manufactured having a structure directly joined to the substrate material and with evaluation carried out on the characteristic of such solar cell. The application of 'gettering' was tried which was for removing harmful impurities from the substrate obtained from such material, bringing an outlook of manufacturing a solar cell with a conversion efficiency of 10%. Concerning the SOG-Si, the efficiency of 13% or higher was attained through the improvement of the manufacturing process. This was the value comparable to the case of using a conventional high purity monocrystal wafer. Further, the application of an ion implantation method was studied for the purpose of getting a low cost. (NEDO)

Fiscal 1976 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on 2-6 group compound semiconductor solar cells); 1976 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. 2-6 zoku kagobutsu handotai taiyo denchi no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-31

This report describes the fiscal 1976 research result on 2-6 group compound semiconductor solar cells for photovoltaic power generation systems. The research aims at the system less than 1/100 in cost. Vapor deposition resulted in failure to obtain high-efficiency cells. Vapor-phase growth revealed Cd-Te single-crystal solar cell is promising, however, resulted in failure to obtain high-efficiency thin film elements. Both chemical deposition and sintering succeeded in mass production of prototype high-efficiency elements equal in performance. However, since chemically deposited CdS film is too thin having higher serial resistance, it requires In{sub 2}O{sub 3} auxiliary transmissive electrodes on glass substrates. Since CdTe film and CdS film also require completely different vapor deposition processes in hetero- junction, chemical deposition is more disadvantageous in cost than sintering. CdTe thin film fabricated by screen printing/sintering is most promising. Since Cd is harmful to human bodies, study was made on pollution preventive measures in its production or use stage, and accidents or fires, obtaining some results. (NEDO)

Fiscal 1974 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on Si thin film crystal by particle acceleration growth); 1974 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Ryushi kasoku seichogata silicon usumaku kessho no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-05-30

This research includes (1) basic study on formation technology of Si thin film crystals by particle acceleration growth, (2) basic study on junction formation technology for Si thin film crystals, and (3) basic study on GaAs compound semiconductors by pyrolysis method. In the 1st research, the thin film formation equipment was prepared for formation of charged Si particles from monosilane and solid Si in inert gas plasma by high-frequency excitation, and its expected characteristics were confirmed through its operation test. Basic data of Si thin films were also obtained by electron beam diffraction and Auger electron spectroscopy. In the 2nd research, study was made on junction formation systems for thin films, and the idea of a continuous thin film formation system was obtained for junction formation. In the 3rd research, development of p-type GaAs epitaxial technology was promoted, and it was confirmed that various p-type GaAs compound semiconductors of 10{sup 12}-10{sup 18}cm{sup -3} in impurity concentration are obtained by controlling a ratio of trimetylgallium gas to arsine gas. (NEDO)

Research and development of photovoltaic power system. Research on low temperature deposition of polycrystalline thin films; Taiyoko hatsuden system no kenkyu kaihatsu. Teion seimaku gijutsu no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Sato, K [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan). Faculty of Technology

1994-12-01

This paper reports the result obtained during fiscal 1994 on research on a technology of low temperature deposition of polycrystalline thin films for solar cells. This research used ITO coated glass substrates, on which CdS was accumulated to a thickness of about 100 nm by using the CBD process, and over this deposition a CuInSe2 film was formed at 300{degree}C by using the ion cluster beam (ICB) process. The manufactured solar cells with a glass/ITO/CdS/CuInSe2/Au structure had an efficiency of 2%. In manufacturing a CuGaSe2 thin film by using the ICB process, effects of acceleration voltage relative to cluster beams and ionization current were investigated. It was found that the film morphology, the result of analysis by using X-ray diffraction, and the electric conductivity are sensitive to the ionization current. From these findings, an optimum film forming condition was derived. A CuGaSe2 thin film was manufactured by using the ICB process over a Cds thin film deposited by using the CDB process. Both of the surface morphology and X-ray diffraction patterns of the film did not show a large change, indicating a possibility of manufacturing cells with a reverse structure. Effects of heat treatment on CuInSe2 monocrystals were evaluated by using ESR and FTIR. 6 figs., 1 tab.

1998 Annual Study Report. Research and development of solid polymer type fuel cells (Development of techniques for power generation systems and several tens kW class, distributed power source systems); 1998 nendo seika hokokusho. Kotai kobunshigata nenryo denchi no kenkyu kaihatsu (hatsuden system gijutsu no kaihatsu / koden'atsugata su 10kW kyu bunsan dengen system no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The cells are tested using a CO-containing synthetic reforming gas in 1998, to verify the long-term characteristics of the solid polymer type fuel cells. The cells, equipped with the anode catalyst developed therefor, are tested for extended periods, to confirm the performance and stability in the synthetic gas flow. For development of the catalyst, the optimum content of Ru in the Pt and Ru alloy composition is determined. For the cell tests, the single- and 3-cell units are tested for extended periods. For verification of commercial viability of the stacked cell systems, the cell-humidifying techniques are developed, which can uniformly humidify each cell in the stacked unit with a number of cells, after investigating the effects of temporal changes in water permeability, pretreatment conditions and film thickness. These techniques are used to develop and operate a 10kW, stacked cell unit, which successfully generates power of 10.6 kW at the rated current density, exceeding the target of 10 kW. For development of design bases for compact fuel treatment system, the techniques which allow reduction of CO concentration to 10 ppm or less at high repeatability are developed. (NEDO)

1998 Annual Study Report. Research and development of solid polymer type fuel cells (Development of techniques for power generation systems and several tens kW class, distributed power source systems); 1998 nendo seika hokokusho. Kotai kobunshigata nenryo denchi no kenkyu kaihatsu (hatsuden system gijutsu no kaihatsu / koden'atsugata su 10kW kyu bunsan dengen system no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The cells are tested using a CO-containing synthetic reforming gas in 1998, to verify the long-term characteristics of the solid polymer type fuel cells. The cells, equipped with the anode catalyst developed therefor, are tested for extended periods, to confirm the performance and stability in the synthetic gas flow. For development of the catalyst, the optimum content of Ru in the Pt and Ru alloy composition is determined. For the cell tests, the single- and 3-cell units are tested for extended periods. For verification of commercial viability of the stacked cell systems, the cell-humidifying techniques are developed, which can uniformly humidify each cell in the stacked unit with a number of cells, after investigating the effects of temporal changes in water permeability, pretreatment conditions and film thickness. These techniques are used to develop and operate a 10kW, stacked cell unit, which successfully generates power of 10.6 kW at the rated current density, exceeding the target of 10 kW. For development of design bases for compact fuel treatment system, the techniques which allow reduction of CO concentration to 10 ppm or less at high repeatability are developed. (NEDO)

Cement manufacture and sludge; Semento seizo to gesui odei. Semento kojo deno antei shori {center{underscore}dot} yuko riyo gijutsu

Energy Technology Data Exchange (ETDEWEB)

Hirota, Yoji; Yamazaki, Masayasu; Hashimoto, Koichi [Mitsubishi Materials Corp., Tokyo (Japan)

1998-11-10

There was the percussion of the sludge processing from the Kitakyushu City in 1995. Within various waste treatment technology cultivated to it, the technology (direct combustion system) of cement raw material by the direct injection of sludge dehydrated cake to cement baking furnace was adopted. It became dealing with in cement baking furnace of the Kurosaki factory in our company. Through the processing by the present, it is not completely finding even in cement quality of the product, environmental side and on the problem. It was confirmed to be the processing technology of sewage dewatered sludge in which this technology was safely stabilized. In addition, the superiority in much global environmental protection has also been confirmed. (NEDO)

FY 1993 report on the results of the technology development for the commercialization of the photovoltaic power system. Development of the solar cell use compound semiconductor production system - development of flight use testing machine; 1993 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyo denchiyo kagobutsu handotai seizo sochi kaihatsu (hikoyo shikenki no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1994-03-01

For a new breakthrough of the technology of the photovoltaic power generation, the paper aims at developing a combined heating furnace, a focal heating furnace and a single heating furnace which are necessary to produce crystals of the substrate of compound semiconductors for high quality solar cell under the microgravity environment obtained in the space, and also the systems related to the functions indispensable to the operation of the above-mentioned furnaces. This report is Vol. 2/3, and described the mission operation in Chapter 7, repair of PFM battery in Chapter 8, mechanical system ground support equipment and maintenance/inspection in Chapter 9, and electrical system ground support equipment and maintenance/repair in Chapter 10. In Chapter 7, described were the arrangement of operation of electrical furnace, operation manual of electrical furnace, procedures for operation, database, training, rehearsal plan, etc. In Chapter 8, of the battery repair plan, the paper carried out the repair design/repair work of battery, and described the state where a test to accept the test specifications is possible. In Chapter 9, indicated were the documents for application and reference of the maintenance/inspection of MGSE. In Chapter 10, the paper reported on the repairs for adaptation for the maintenance and lunching work of EGSE. (NEDO)

Generic supercritical water technology; Generic technology to shite no chorinkaisui riyo gijutsu

Energy Technology Data Exchange (ETDEWEB)

Arai, K; Ajiri, M; Inomata, H; Smith, R; Hakuta, Y [Tohoku University, Sendai (Japan). Faculty of Engineering; Yokoyama, C [Tohoku University, Sendai (Japan). The Institute forChemical Reaction Science; Chin, L [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

1997-02-01

This paper describes the measurement and analysis for clarifying solution structure of supercritical water and exhibition mechanism of solvent functions. It also describes the development of new processes using supercritical water as reaction solvent. The PVT measurements were conducted in the supercritical region using pure water and NaCl aqueous solution, to confirm the reduction of molar volume of the electrolyte solution. The hydration structure was examined in the supercritical aqueous solution by the molecular dynamic simulation. As a result, presence of hydrogen bond structure, where the contribution of two branching hydrogen bond can not be ignored, was suggested under the supercritical condition. Characteristics of supercritical aqueous solutions are analyzed through in-situ Raman and scattered X-ray spectral measurements. Moreover, this paper introduces developments of some processes in the supercritical water, such as decomposition of wasted polymers, recovery of chemical materials, reforming of heavy hydrocarbons by contact hydrogenation, and synthesis of fine powders of metal oxide by reaction crystallization.

Report of fiscal 1998 results. Feasibility study of overseas technological development (feasibility study for joint research on photovoltaic power generation in Myanmar); 1998 nendo kaigai gijutsu kaihatsu kanosei chosa hokokusho. Myanmar ni okeru taiyoko hatsuden system kyodo kenkyu kanosei chosa

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Feasibility was studied of a demonstrative research concerning effective operation of a hybrid system consisting of photovoltaic, wind and diesel power generations in Myanmar. Upon confirmation of Myanmar's request and assistance, Myanmar electric Power Enterprise was selected as the counterpart, with Kantangyi village determined as the candidate site from the viewpoint of the quantity of solar radiation, wind conditions, and convenience in transportation service. Meteorological observation instruments were installed at Nyaung U observatory, with the observation implemented. It was grasped that the demand spreading pattern and the demand for electric power was 40 kWh/month per household. It was also judged that the system structure should be constituted of photovoltaic power, wind power, and diesel generator/battery/adjustable load. The problems are stable supply technology, technology for effective use of renewable energy, technology for complementary effects of photovoltaic power generation and wind power generation, and demonstration of a 100 kW class wind power generation system. Particularly important is consistency between the capacity of power storage equipment and that of diesel power generation. The study results applicable to Japan is the verification of a small-sized independent system for remote islands or the like. The total research expenses were estimated to be 600 million yen. (NEDO)

FY 1998 Report on development of technologies for commercialization of photovoltaic power systems. International co-operative project (Information collected for IEA Solar Heating and Cooling Programme); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu kokusai kyoryoku jigyo. IEA taiyo reidanbo kyuto program ni kansuru joho shushu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The IEA/ Solar Heating and Cooling Programme (SHCP) committee members were dispatched to the IEA/SHCP Executive Committee and Expert Meetings, to collect information, present the reports and hold the discussions, among others. Described herein are the results. The third Expert Meeting of the IEA/SHCP Task 23 prepared the document covering the examples of solar energy use in large buildings and distributed them in Subtask A, and proposed and discussed the comprehensive performance evaluation methods and simulation-based design tools in Subtask C. The second workshop of the IEA/SHCP Task 25 discussed evaluation of the current technologies for solar assisted air conditioning, design of the solar assisted cooling systems, economic evaluation and market researches, investigations of cooling system hardware, and development of simulation programs and design tools. The examples of solar cooling are mostly found in Japan, and European countries are conducting experiments and field tests, because of lack of commercial grade freezers. (NEDO)

Fiscal 1974 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on Si ribbon crystal vertical pulling method); 1974 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Silicon tatehiki ribbon kessho no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-05-30

This research includes (1) basic study on Si ribbon crystal vertical pulling method, (2) basic design of continuous Si ribbon crystal vertical pulling mechanism, (3) basic study on vertically pulled Si ribbon crystal, (4) study on capillary materials for capillary crystal pulling method, and (5) basic study on AlAs-GaAs system compound semiconductors. In the 1st research, for Si ribbon crystal vertical pulling growth, the ribbon crystal pulling equipment was prepared and modified, and Si crystals were obtained by capillary and web methods. In the 2nd research, for development of Si ribbon crystal vertical pulling growth technology, study was made on the simple energy-saving resource-saving continuous automatic production process. In the 3rd research, measurement was made on various characteristics of ribbon crystals. In the 4th research, study was made on requirements of capillary materials from the viewpoint of capillary growth mechanism. In the 5th research, basic technology for solar cell production was established through growth experiments of AlAs-GaAs mixed crystals and multiple epitaxial crystal layers. (NEDO)

Fiscal 1976 Sunshine Project result report. R and D on photovoltaic power generation system (R and D on Si ribbon crystal vertical pulling method); 1976 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Silicon tatehiki ribbon kessho no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-03-31

This report describes the fiscal 1976 research result on Si ribbon crystal vertical pulling method for photovoltaic power generation systems. The equipment for simultaneous growth of 3 ribbon crystals was designed and prepared in consideration of capillary die arrangement, vertical pulling method and control method of temperature profiles on the die surface. The temperature profiles on the die surface were controlled by subheaters for 3 parts of each capillary die which were divided longitudinally. Ribbon crystals grew up to 5mm simultaneously through both end dies. By cooling a part of crystal, fast pulling is probably possible. Study was made on the correlation between various crystal defects of Si ribbon crystals and cell characteristics, and in particular, basic characteristics of SiC deposited particles by SEM observation to reduce their impacts. Possibility of simultaneous vertical pulling of crystals was verified by using a capillary carbon die for multi-pulling. Although crystals grew by eutectic reaction under saturated dissolution of carbon, crystals with no transition were obtained. An SiC-coated die was excellent rather than carbon one. (NEDO)

Fiscal 1999 research report. Revision of introduction guidebook for wind power generation; 1999 nendo furyoku hatsuden donyu guide book no kaitei gyomu chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Expectations are rapidly growing higher in Japan, whose energy supply structure is but fragile, that new energies upon introduction and diffusion will help settle emerging environmental problems such as global warming. For the acceleration of new energy introduction, it is necessary to supply autonomous entities etc. planning to adopt new energies with various materials such as basic knowledge of new energies, cases of successful introduction, and procedures to follow for their adoption. Wind power generation has come to attract attention as a environmentally-friendly clean method of energy supply, and there is a strong tendency towards its adoption. Under such circumstances, a guidebook has been prepared, in which study results are systematically written as to the items to consider before local autonomies etc. install their wind power generation systems. The main items in the guidebook are the outlines of wind power generation, wind characteristics, wind power generation system, precedents of wind power generation, how to conduct studies about wind power generation, construction and maintenance of wind power generation systems, procedures, laws, and regulations relating to wind power generation, and government subsidies for wind power development. (NEDO)

FY 1992 report on the results of the demonstration test on the methanol conversion at oil-fired power plant. Developmental study of a methanol engine system for power generation; 1992 nendo sekiyu karyoku hatsudensho metanoru tenkan tou jissho shiken. Hatsuden you metanoru enjin system no kaihatsu kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1993-03-01

For the purpose of establishing the methanol engine technology for promotion of methanol introduction to oil-fired power plant, an experimental study was made, and the FY 1992 results were summarized. In the study of technology development, the following were carried out: evaluation of durability of multi glow plug and development of high-durability glow plug, confirmation of potentiality of the laser ignition system by element evaluation test, evaluation/improvement of durability of the injection system and development of injection pump for the actual machine, trial manufacture of the 2-stage injection system and confirmation of characteristics, study of improvement in ignitability/combustion state by optimization of the temperature of glow plug, compression rate, etc., evaluation of durability of combustion chamber, etc. by the heat load measuring test and heat balance, etc. As a result of the engine test, the pump housing stayed favorable without damage in the use of about 20,000h, plunger assembly did in the use of about 4,500h, and valve assembly did in the use of about 20,000h. As to the manufacture of the actual machine, a prototype was designed/manufactured of a 500kW class direct injection 4 cycle supercharging 6 cylinder methanol engine. (NEDO)

FY 1979 Annual report on Sunshine Project results. Fabrication designs for a solar thermal power pilot plant with curved-surface type light-collecting system (Part 1); 1979 nendo taiyonetsu hatsuden (kyokumen shuko hoshiki) seika hokokusho. 1. Pilot plant no seisaku ksekkei

Energy Technology Data Exchange (ETDEWEB)

NONE

1980-03-01

This report describes basic and fabrication design specifications for operation and control of a solar thermal power pilot plant with curved-surface type light-collecting system, centered by computer for the plant control. Chapter I, basic fabrication design specifications, describes the general, design specifications and design scope. Chapter II, system design specifications, describes plant operating manuals, computer-aided plant control, computer-aided data processing for plant control, and analysis of system characteristics. Chapter III, hardware specifications, describes the specifications of central processing unit (CPU), fixed head disc device (M DISC), console inputting/outputting device, process inputting/outputting device, logging typewriter, process display (CRT), cassette magnetic tape device, operator console, relay cubicle, power source panel for computer, and hardware lists. Chapter IV, attachments, contains the following documents: plant operating manuals, operation procedure flow charts, control processing specifications, control function specifications, APS console function specifications, computer inputting/outputting point list, and data processing function instructions. The attachment documents are also contained in Part 2 of JN0040512. (NEDO)

Hydrogen utilization international clean energy system (WE-NET). Subtask 8. Development of hydrogen combustion turbines (development of combustion control technology); Suiso riyo kokusai clean energy system (WE-NET). Subtask 8. Suiso nensho turbine no kaihatsu nensho seigyo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The paper described the fiscal 1996 developmental results of hydrogen burning turbine combustion technology in the hydrogen utilization international clean energy system (WE-NET) project. A test was conducted on an annular type combustor where oxygen is mixed with steam (inert gas) at burner and fired with hydrogen. Appropriate flame shape and cooling/dilution vapor distribution were attempted, and various data on combustion were measured for improvement. Mixture and flame holding were improved by developing a can type combustor (1) where oxygen is diluted with steam after firing oxygen and hydrogen around burner and by strengthening circulation in the combustor. Improvement such as appropriate steam distribution, etc. is needed. A can type combustor (2) was tested in which the premixed oxygen and hydrogen is supplied from scoop and fired with hydrogen. By supplying part of oxygen from the primary scoop, the residual hydrogen and oxygen concentration around the stoichiometric ratio can be reduced. Concentration of the residual oxygen can be measured by the absorption light method, but it is difficult to adopt the non-contact measuring method to hydrogen. An outlook for the gas temperature measuring method was obtained. 12 refs., 121 figs., 27 tabs.

FY 1999 Report on results of development of high-efficiency energy system technologies for transportation and domestic use. R and D of polymer electrolyte fuel cells, power system technologies, and several kW class domestic power systems operating at normal pressure; 1999 nendo un'yu minseiyo kokoritsu energy system gijutsu kaihatsu, kotai kobunshigata nenryo denchi no kenkyu kaihatsu, hatsuden system gijutsu kaihatsu, joatsu sadogata su kW kyu kateiyo dengen system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

Described herein are the FY 1999 results of the research and development project aimed at development of fuel cell systems for power source systems suitable for domestic use. The programs for development of fuel cell body include improvement of the anode forming method for increasing its CO tolerance, enhancing cell performance at 0.5mg-metal/cm{sup 2} as the catalyst quantity to a level almost comparable to that obtainable at 0.9mg-metal/cm{sup 2}. The programs for development of the fuel supply system include studies on endurance of the elements, e.g., starting-up/shutting-down of the Ru/Al{sub 2}O{sub 3} catalyst, using a microreactor, confirming that it is serviceable for at least 1,000 hours. The natural gas reformer is developed and operated, on a trial basis, achieving stable supply of steam and fuel, and thermal efficiency of 82.7%. The operation researches include development and operation of a 1kW class module, achieving the performance surpassing the FY 1999 targets (average cell voltage: 0.70V, output: 1.27kW) with a simulated reformate gas at an air utilization rate of 20% and current density of 0.3A/cm{sup 2}. (NEDO)

Fiscal 1999 phase 2 R and D report of WE-NET (International Clean Energy Network Using Hydrogen Conversion). Task 5. Development of hydrogen vehicle system; 1999 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET) dainiki kenkyu kaihatsu. Task 5. Suiso jidosha system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This report summarizes the fiscal 1999 research result on the safety of hydrogen absorbing alloy tanks for hydrogen vehicle systems and the measuring method of a fuel consumption rate of hydrogen fuel cell powered vehicles. In the impact rupture test of (mini-scale) hydrogen absorbing alloy tanks, the impact 3-point bending test result by drop weight showed no ignition caused by impact and friction energy acting on hydrogen released by rupture of tanks, and the necessity for taking spontaneous ignition of alloys due to fuel leakage into account. The experiment result on deformation and rupture of alloy tanks caused by expansion and contraction of crystal lattices due to hydrogen absorption and desorption showed relatively large deformation due to grain fining only within earlier 10 cycles, and no cracks nor other defects even after 1000 cycles. In the measurement of a fuel consumption rate of hydrogen fuel cell powered vehicles, the study result on flow rate measurement method, full tank method, electric current method, hydrogen balance method and oxygen balance method showed that the electric current method is most simple, accurate and practical. (NEDO)

FY 1999 achievement report on the supporting project to form energy/environmental technology verification project - International joint verification research project. Research on the waste-fueled power system using gases emitted from the sanitary landfill in Samarkand city; 1999 nendo Samarkand shi ni okeru umetate gas wo riyoshita gomi hatsuden system no kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

In Samarkand city, Uzbekistan, solid waste materials are treated in the sanitary landfill. However, requests were made from the Minister of Communal Services for the construction of power system as a part of the effective waste utilization and the study of the integrated waste collection system enabling the construction of a power system. There is only one waste dumping site in Samarkand city. That started to be used in the beginning of the 1970s. That was planned to be closed in 2000, but is now planned to used till 2005. Therefore, it is urgent to reduce the volume of waste. The incineration of waste is the most suitable for it. In the study of a power system by using waste effectively, it is important to efficiently recover the methane gas emitted from the waste dumping site, to study the adoption of the repowering system using the combustion gas of methane gas for increasing the generated output of waste-fueled power generation facilities, and to heighten the low power generation efficiency. This study includes the survey of the waste discharge amount/composition/heating value, collection of the data on waste collection, and sampling/analysis of gases emitted from the dumping site. The paper reported on the proposals. (NEDO)

Data book on new energy technology in FY 1997. Wind power generation; Shin energy gijutsu kaihatsu kankei data shu sakusei chosa. Furyoku hatsuden

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

It is an urgent necessity for Japan to promote the technological development and accelerate the introduction and diffusion of new energy. In order to diffuse and enlighten the introduction of new energy technology efficiently, it is necessary to compile various information regarding new energy in a comprehensive and systematic way, and formulate a database. Aiming at the systematic formulation of data on new energy, this survey focuses on the field of wind power generation system (WPS) and provides a collection of the latest published data on WPS, particularly regarding the worldwide installed wind power capacity, support plan and government policies, current situations of WPS market, and major technical characteristics of typical wind turbines. This report consists of the significance of wind energy, world market of wind turbines, government policies, international wind energy development, subsidies for wind energy, procedures of wind turbine system installation, governmental measures for wind energy development, subsidiary companies and organizations, basis of wind energy, and Japan`s wind energy development in 1997

Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. International cooperation projects (Collection of information on IEA photovoltaic air conditioning and hot water supply program); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Kokusai kyoryoku jigyo (IEA taiyo reidanbo kyuto program ni kansuru joho shushu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

This paper reports activities of collecting items of information by dispatching experts mainly composed of members of the IEA photovoltaic air conditioning, and solar heating and cooling program (SHCP) committee to the SHCP Executive Committee and the Task expert conferences. This treaty is intended to assist creating the environmentally sustainable future by utilizing solar designs and technologies. It also aims at developing solar technologies including cost reduction as a result of the joint researches with business entities, structuring international markets, providing items of information, quantifying the effectiveness to the environment, performing the international standardization, and promoting utilization of solar technologies in developing countries. The tasks now in action include architectural lighting, methods for analyzing solar architectural energies, optimization of solar energy utilization in large buildings, procurement of active solar systems, air conditioning systems in buildings using the solar energy, solar heat composite systems, expansion of exterior component materials for solar buildings, sustainable buildings, agricultural solar drying, solar cities, a hybrid heat/PV solar system. (NEDO)

Fiscal 1997 R and D project under a consignment from NEDO. R and D of the femtosecond technology (R and D of the monitoring system using high-intensity X-ray pulse for power plants); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Femto byo technology no kenkyu kaihatsu (kokido X sen pulse riyo hatsuden shisetsu monitoring system no kenkyu kaihatsu) seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

This paper reports the result on R and D of the femtosecond technology in fiscal 1997. Ultrahigh-speed electronic technology is indispensable for industrial basic technologies supporting the advanced information society in the 21st century. Control technology of photonic and electronic states in a femtosecond region is essential. In R and D of metrological technology using ultra-short light-pulses, study was made on generating and controlling technology for ultra- short light/electron beam pulses. Ti-sapphire mode-locked laser was prepared, and it was found that time-fluctuation of mode-locked laser pulses is measurable up to 100 femtosecond level. As measures against an instability of gain-switching semiconductor laser, light injection from the outside was effective. The stable directivity of laser beam was obtained by regenerative amplifier, while less temperature variation of an optical switch was necessary to stabilize energy. To generate femtosecond high-intensity X-ray pulse by collision of laser and electron beams, it was confirmed that sub- picosecond synchronization is possible by RF and picosecond laser synchronization circuit. 48 refs., 89 figs., 11 tabs.

FY 1999 research report on the evaluation/analysis of the data collected in the field test project for the photovoltaic power system for public facility use; 1999 nendo kokyo shisetsu nadoyo taiyoko hatsuden field test jigyo ni okeru shushu data hyoka kaiseki kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

In this research, the photovoltaic power system is experimentally installed at various facilities (public facilities such as public hall, school and museum), and operated on a long term basis under the actual loads. Various kinds of data are collected/analyzed and used as the data useful for the full-scale introduction and spread. The photovoltaic power generation field test project for public facilities using the photovoltaic power system was started in FY 1992 by NEDO. Systems at 116 sites started operation by FY 1996, and in FY 1997 systems were installed at a total of 70 sites. The paper outlined the project and described the results of the collection/analyses of the operational data obtained at 145 sites where systems were installed from FY 1995 to FY 1997. The term of analysis in FY 1999 was made from April 1999 to December 1999, being different from usual, to avoid the Y2K problem on data collecting software, measuring use personal computer, etc. Further, since there are no sites where no systems were newly installed in and after FY 1998, there are no analyses of economical efficiency in and after FY 1999. The paper indicated a list of all the sites with system installation in FY 1995-1997 including the main items. (NEDO)

Survey for making a data book related to the development of new energy technology (the photovoltaic power generation); Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (taiyoko hatsuden)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

A data book related to the photovoltaic power generation was made as a part of the systematical preparation of new energy related data. The paper arranged the importance of introducing the photovoltaic power system and the CO2 reduction effect at levels such as the government, local government, industries and individuals which are users. Described were the production quantity by region/type/company, shipment by usage, production amount and prices of solar cells. Arranged was the situation of policies on the photovoltaic power generation in Japan and developed countries. Examples of the introduction in countries including Japan were examined to know the introduction quantity and target. The paper introduced the subsidy system, preferential tax system and loan system for the introduction of the photovoltaic power system in Japan. The flow was summed up from the planning of the system introduction to the installation. The status of handling with the system introduction of government related organs and local governments was stated. The paper showed a list of the companies related to the photovoltaic power system and the references of solar cell makers and solar system installation makers. The development is so quickly made that the renewal every year of the system and the quality enhancement are required. 32 figs., 112 tabs.

FY 1998 Report on development of large-scale wind power generation systems. Feasibility study on development of new technologies for wind power generation, and study on local wind resource prediction model; 1998 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. Furyoku hatsuden shingijutsu kaihatsu kanosei chosa (kyokusho fukyo yosoku shuho ni kansuru chosa)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Described herein are the FY 1998 results of the study on local wind resource prediction model. The local wind resource prediction models developed so far apply the solutions based on the existing linear models (WASP and AVENU) for relatively flat terrain. These models are studied for their applicability limits. The study covers wind direction and speed patterns of the surface wind and upper winds at 3 sites in Hokkaido, Fukushima Pref. and Shizuoka Pref. The surface winds are found to be correlated with the upper winds both for wind direction and wind speed in almost all cases. Next, wind resources simulations are carried out for each of the classified weather patterns using the existing models, and the prediction errors are studied. The results show that the prediction accuracy of the existing linear models is highly dependent on inputs of observed data, and that the accuracy tends to decrease for the situations where the upper and surface wind conditions greatly differ from each other, as in the case of a land and sea breeze of thermal origin. It is also confirmed that prediction accuracy is lower on complex terrain than on flat terrain. (NEDO)

Study on the creation of inorganic materials using micro-gravity environment; Bisho juryoku kankyo riyo muki zairyo no sosei kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

Creation of new functional inorganic materials using micro-gravity environment was studied. Observation of an electrode interface phenomenon under micro-gravity clarified that time variation in interference fringe is dependent on current density and electrode thickness in ground experiment, while it is dependent on not electrode thickness but current density under micro-gravity. In fabrication of glass fine particles under micro-gravity, true spherical glass fine particles of 4-7{mu}m in size were obtained corresponding to a charge of 40mg by evaporation and solidification of sodium tellurate glass as raw material under micro-gravity. In fabrication of non-harmonic Pb-Zn system alloy, the homogeneous alloy texture of 5{mu}m level was observed which has never been observed in previous metal phase diagrams by fusion of 80atom%Pb-20atom%Zn mixture under micro-gravity and quenching from 500degC. On the study on fabrication of spherical semiconductor crystals, 7 spherical Si single crystals of 300{mu}m in size were obtained. 12 refs., 48 figs., 2 tabs.

Survey research report by the hydrogen occluding alloy utilization development committee; Suiso kyuzo gokin riyo kaihatsu iinkai chosa kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1985-03-01

This report summarizes the FY 1984 survey research results, issued by the hydrogen occluding alloy utilization development committee. The basic property subcommittee is responsible for collecting published data related to the basic properties of metal halides as much as possible, and pigeonholing them to have the data which can contribute to development of the new alloys for basic researches and engineering applications of hydrogen occluding alloys. The subcommittee members have collected these data. The common theme subcommittee has planned to collect the P-C-T diagrams of the hydrogen occluding alloys and new alloys as much as possible, for the designs, development, production and system designs of the hydrogen occluding alloys. The P-C-T diagrams have been collected for a total of 340 types of alloys, which fall into the broad categories of Mg-based, TiFe-based, TiMn-based, other Ti-based, rare-earth-based, Zr-based, Ca-based and others. The analytical methods have been also investigated while collecting P-C-T diagrams. (NEDO)

Analysis and evaluation of data to accompany the development of geothermal water use power plant, etc. Analysis and evaluation of polymeric materials exposed to geothermal heat at depths; Nessui riyo hatsuden plant nado kaiahtsu ni tomonau data no kaiseki hyoka. Shinbu chinetsuyo kobunshi zairyo no kaiseki hyoka

Energy Technology Data Exchange (ETDEWEB)

Kenmochi, K.; Takahashi, J.; Takayanagi, H.; Tsuda, H.; Nagai, H.; Takeuchi, K. [Agency of Industrial Science and Technology, Tokyo (Japan); Nagasawa, C. [Kumamoto Prefectural Industrial Technology Center, Kumamoto (Japan); Hamada, T. [Science University of Tokyo, Tokyo (Japan). Faculty of Industrial Science and Technology

1998-11-20

Remaining life assessment technologies for polymeric materials for geothermal power generation and methods for improving their heat resistance are reviewed, and concepts of scale-free technologies for FRP (fiber-reinforced plastic)-sandwiched pipelines for hot water transportation are described. Materials based on PTFE (polytetrafluoroethylene) and NBR (acrylonitrile-butadiene rubber) are chosen for use as DHM (down-hole motor) sealing material and for application to the stator. With PTFE as the matrix, four candidates are prepared, which are additive-free PTFE, and GF/PTFE, GF/CF/PTFE, CF/PTFE, each containing 20w% GF (glass fiber) and/or 20w% CF (carbon fiber). With NBR serving as the matrix, two candidates are prepared, which are NBR-A containing 20w% aramid fiber and NBR-W which is a vulcanized NBR-A. External force, heat, light, and mud are named as the degradation factors, and each factor and some combinations of external force, heat, and light are repeatedly imposed on the materials. During the effort to develop an apparatus for simulating geothermal circumstances in which the factors will affect the materials in complicated ways, a life assessment technique is developed for such polymeric materials. A technology is developed for providing polymeric rubber elastomer with a heat resistant feature. A study is made to replace transportation pipelines for injection wells with FRP sandwiched pipelines. (NEDO)

Report on evaluation concerning R and D of magneto hydrodynamic (MHD) generation. Introduction; Denji ryutai (MHD) hatsuden no kenkyu kaihatsu ni kansuru hyoka hokokusho. Soron

Energy Technology Data Exchange (ETDEWEB)

NONE

1984-03-01

Evaluation was conducted concerning R and D on magneto hydrodynamic (MHD) generation, with proposals made for the future R and D. As a result of the experimental operation and studies of the Mark 7 machine for MHD generation, a cold wall type generation channel was found promising in the long-term durability under MHD generation conditions. In addition, R and D was conducted on the exhaust gas control system that fulfilled an environmental standard, seed recovery method, grasp of seed coagulation state, etc. The R and D on element technologies were carried out along with the R and D of the Mark 7 and played a role in the backup of its experiment. MHD generation presents a large number of attractive characteristics, with its development expected in the future. However, it seems too early to immediately move on to the next step. Examinations should be made on such matters as comparisons with various kinds of new power generation systems using coal, trends in foreign countries particularly the U-500 project of the Soviet Union, the ideal system for more efficient development, and possibility of international cooperation. (NEDO)

Photovoltaic power generation field test at Saigo Police Station (police station in a heavy-snow district); Saigo keisatsusho taiyoko hatsuden field test jigyo (sekisetsu chiku no keisatsusho)

Energy Technology Data Exchange (ETDEWEB)

Matsuo, S. [Shimane Prefectural Police Department, Shimane (Japan)

1997-05-30

Contents of a fiscal 1996 photovoltaic power generation field test at a police station in a heavy-snow district are reported. The system is on the rooftop of the garage of Saigo Police Station, Saigo-cho, Shimane Prefecture, and is used for lighting, airconditioning, etc., in the police station. It is 15kW in capacity and operates on high-voltage interconnection (with back flow). The array is a 9-series/17-parallel (polycrystalline modules) system, facing 15deg eastward from due south and inclined at an angle of elevation of 17deg. Dead space on the roof is used for solar cell installation, and the applicability and stability of the photovoltaic power generation system, as installed at a police station in a heavy-snow district, were verified and, at the same, operation data were collected. The data will serve as guidelines for construction in the future, and will enable understanding about how a distributed type power generation plant should be on an isolated island. The compilation of various data about its system interconnection (with back flow) with the commercial power source is meaningful because it will work effectively in popularizing the photovoltaic power generation system. Efforts to appeal to the local population are under way, which includes letting visitors into a terrace, distributing advertising pamphlets, etc., which are quite effective in enlightening people of the new energy producing technology

Research and development of peripheral technology for photovoltaic power systems. Research and development of redox flow battery for photovoltaic power generation; Shuhen gijutsu no kenkyu kaihatsu. Taiyoko hatsuden`yo redox denchi no kenkyu kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

1994-12-01

This paper reports the study results on R and D of redox flow battery for photovoltaic power generation in fiscal 1994. (1) On the production method of electrolyte, silica reduction treatment was attempted to use ammonium metavanadate recovered from boiler as electrolyte of redox flow battery. Silica removal rates more than 90% were achieved by crystallizing V as polyvanadate while keeping molten silica. It was ascertained in minicell experiment that trivalent and quadrivalent V electrolytes produced from recovered V are applicable to continuous charge/discharge operation for one week. (2) On development of battery systems, the relation between battery characteristics and physicochemical properties of carbon fiber electrodes was studied to improve carbon fiber electrodes. The efficiency of 80% was achieved at current density of 160mA/cm{sup 2} by use of layered electrodes, resulting in considerable cost reduction. Performance evaluation operation of the 2kW battery prepared in the last fiscal year was also carried out. 4 figs.

Report on the results of the FY 1998 hydrogen utilization international clean energy system technology (WE-NET). Subtask 1. Survey/research for the comprehensive evaluation and developmental plan; 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 1. Sogo hyoka to kaihatsu keikaku no tame no chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The paper described the results of the FY 1998 WE-NET project survey. WE-NET is composed of various element technologies such as hydrogen production, hydrogen transportation, storage technology, low-temperature materials, hydrogen utilization, and hydrogen combustion turbine technology. Therefore, considering the effectiveness as a total system, it is extremely important to traversally evaluate the situation of the R and D of each technology and developmental achievements and to work out developmental plans with integration, considering the effectiveness as a total system. From viewpoints of making effective promotion of the project and attempting optimization as a total system, it is necessary to make organic/comprehensive connection and adjustment among individual subtasks all the time. In this survey/research, in the case of proceeding with the above-mentioned studies, a committee having knowledgeable persons and learned persons as members was established. There, an investigational study was conducted over the whole WE-NET structural technology, and at the same time the following were attempted: the constant/mobile comprehensive adjustment of the whole project, evaluation of the developmental results, and optimization of the developmental plans. The results obtained in 6 years of Period I were evaluated traversally and comprehensively, and how to proceed with the development in Period II was proposed, which showed the developmental continuity. (NEDO)

Research report for fiscal 1998. Evaluation and analysis of the collected data for the field tests on photovoltaic power generation systems for public facilities; 1998 nendo kokyo shisetsu nado yo taiyoko hatsuden field test jigyo ni okeru shushu data hyoka kaiseki kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The field tests on photovoltaic power generation systems for public facilities have begun in fiscal 1992 by NEDO. The systems including those under construction are installed in 116 sites. Analyses were given on 75 sites which have been operated up to fiscal 1996. Analyses of the operation characteristics were performed by using performance parameters derived by developing the basic expressions into each configuration element. For the insolation on slanted surface, the range from 3.0 to 4.5 kWh/m{sup 2}/D accounts for 65% of the total insolation. For the equivalent array operation time, the range from 2.5 to 4.0 h/D accounted for 81%. For the equivalent system operation time, the range from 9.0 to 12.0 h/D accounted for 85%. The range for inverter active efficiency from 0.84 to 0.96 accounted for 79%. The inverter load rate was accounted for 88% by 0.20 to 0.35. The output coefficient was accounted for 82% by 0.7 to 1.0 in the array, and 87% by 0.6 to 0.9 in the system. The power generation cost has decreased to 200 yen per kwh in fiscal 1995 from 340 yen per kwh in fiscal 1992, largely contributed by reduced installation cost. (NEDO)

Fiscal 2000 project of inviting proposals for international joint research - invitation for international proposal (Power generation No.10). Achievement report on independent distributed type power generation technology of using now-unused gas pressure difference energy; 2000 nendo kokusai kyodo kenkyu teian kobo jigyo - kokusai teian kobo (hatsuden No.10). Miriyo gas atsuryokusa energy ni yoru dokuritsu bunsangata hatsuden gijutsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

Development is under way of a power generation system utilizing pressure difference during fuel gas transportation, independent from the outside and installable in the vicinity of the load. It is assumed that power is supplied to a decompression device in a fuel gas supply pipeline. Fuel gas placed under high pressure in the mainline is decompressed upon arriving at a consumer area. The intended technology of utilizing the now-unused pressure difference will be employed for power generation, and energy will be collected accordingly. Activities are conducted in the three fields of (1) the acquisition of heat sources for heating, (2) the development of technologies for compensating for seasonal and daily load variations on gas or power, and (3) the development of control technologies to cope with emergency. In field (1), a system is developed, independent from external heat sources, to operate on an indirect heating system based on a heating furnace. In domain (2), it is proved that high efficiency system operation will be available if the influence of gas pipeline transportation parameters on load variations is analyzed for the effective utilization of the pipeline operating system. (NEDO)

Hydrogen utilization international clean energy system technology (WE-NET). Subtask 8. Development of hydrogen combustion turbines (development of the main component devices such as turbine blades and rotors); Suiso riyo kokusai clean energy system gijutsu (WE-NET). Subtask 8. Suiso nensho turbine no kaihatsu (turbine yoku, rotor nado shuyo kosei kiki no kaihatsu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

The paper described the result of the fiscal 1996 development relating to hydrogen combustion turbines, as one of the hydrogen utilization technologies, which have excellent environmentality and are expected of remarkably high efficiency. In the film cooling system of first-stage moving/stationary blades, the smaller the pitch of film pore is, the higher the mean cooling efficiency becomes, indicating 0.7 at maximum. As compared with the conventional shower head type, the metal temperature can be reduced 30-40degC. In the recovery type inner (convection) cooling system, by reducing the blade number, the consumption amount of coolant can be reduced 6% in stationary blade and 13% in moving blade, as compared with the result of the preceding year. In the element test of the hybrid cooling system, film cooling efficiency was actually measured by the porous module test equipment, and the result well agreed with the calculation result. In the water cooling system, studied were water (stationary blade) and vapor (moving blade) of the closed cooling structure for realization of a cycle efficiency of 60%. In rotor/disk cooling, analyses were made of seal characteristic grasp tests and characteristics of the rotor. The effect of deflection in the mainstream was small. Besides, proper value of the seal overlapping amount could be obtained. 6 refs., 368 figs., 55 tabs.

Report on the FY 1999 results of the development of the wide area energy utilization network system - Eco/energy urban system. 2/2. Study of the systematization technology/evaluation technology out of the study of the energy system design technology (Study of the application method of element technology/system and trial calculation of the introduction effect); Koiki energy riyo network system kaihatsu (eco energy toshi system). 2/2. Energy system sekkei gijutsu no kenkyu no uchi system ka gijutsu hyoka gijutsu no kenkyu 1999 nendo seika hokokusho (zenkoku no netsu juyo no bunpu jokyo chosa kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of smoothly introducing the equipment technology and system technology being studied in the development of element technology in the eco/energy urban project, the paper conducted the study of conditions/application method in applying the technology to the actual energy supply system, analysis of the introduction effect, arrangement of the subjects on technical development, etc. In the study, for the methanol/hydrogen base technology, heat pump technology, heat recovery technology, heat transport technology and heat power generation technology, the quantitative analysis was made in terms of the lifecycle energy consumption amount, lifecycle CO2 emission amount and lifecycle expenses. As to the methanol base system, the subject is the reduction in auxiliary power. Concerning the heat pump technology, the subject is the enlargement of simple equipment. As regards the heat recovery technology, the subject is the development of system with long useful year. Relating to the heat transport technology, subjects are the completion of the menu of large-diameter piping in the vacuum thermal insulation heat transport piping system, and reduction in conveyance power of heat medium. About the heat power generation technology, subjects are the stability/durability of the system. (NEDO).

International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 3. Study on the global network; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 3. Global network kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

As a part of the WE-NET project, the introduction condition of hydrogen as substituting energy and CO2 reduction effect were analyzed using a global energy model. The WE-NET project aims at global-wide introduction of clean energy by converting abundant renewable clean energy into hydrogen transportable to distant consumers all over the world. The study result in fiscal 1996 is as follows. Undeveloped hydroelectric resources in the world are estimated to be 12 trillion kWh/y equivalent to the existing developed one in the world. Since the cost of the hydroelectric power generation projects over 1000MW in the planning stage is estimated to be 0.02-0.05$/kWh lower than that of other renewable energies, such projects are expected as energy source in the initial stage of the practical WE-NET project. The GREEN model was modified by adding a hydrogen analysis function, and extending an analysis period. The modified model allowed evaluation of the long-term important role of hydrogen energy, in particular, the capability of CO2 gas reduction all over the world. 28 refs., 92 figs., 56 tabs.