Development of TS590MPa grade high tensile strength steel for automotive anti-collision parts; Shogeki kyushuyo 590MPa kyu kochoryoku koban no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Miura, K; Takagi, S; Furukimi, O; Hira, T; Obara, T [Kawasaki Steel Corp., Tokyo (Japan); Tanimura, S [University of Osaka Prefecture, Osaka (Japan)

1997-10-01

The effects of strain rate on the deformation behavior of steels were investigated to find the most appropriate micro-structure of steel for anti-crash parts of automobiles, such as front-side-members. The dual phase steel absorbed a higher amount of energy during dynamic deformation than other steels with the same static yield strength. The increase of volume fraction of the austenite phase in the dual phase steel deteriorates the dynamic deformation behavior. The FEM analysis for crash test of HAT-sectional sheet box also showed the superior performance of the dual phase steel. 4 refs., 7 figs., 1 tab.

Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1

Energy Technology Data Exchange (ETDEWEB)

Sonai, A; Murata, K [Toshiba Research and Development Center, Kawasaki (Japan)

1993-11-01

During a single-cell disassembly test of molten carbonate fuel cells having been operated for 90 hours to 5500 hours, correlativity was discovered between decrease in the retained amount of electrolyte due to decrease in pore capacity of electrodes and electrolyte plates and the electrolyte loss. The electrolyte loss amount cannot be explained with the conventional mechanisms, thereby a new model was proposed. The cathode has shown very little change in the capacity change in pores with diameters smaller than 2 {mu}m per unit area. The anode has remained almost constant after 1000 hours, but the electrolyte plates have shown remarkable decrease. Therefore, it is possible to estimate that the electrolyte plates should have been the major cause for the electrolyte loss. The result of measuring the electrolyte loss amount agreed well with that estimated using pore capacity curves. This fact suggests that the electrolyte loss can be explained by a new mechanism that hypothesizes the existence of a largest size of retaining pores that can support carbonates and defines that the electrolyte loss is generated from decrease in the pore capacity. 7 refs., 8 figs., 1 tab.

Sintering behavior of porous electrolyte supporting matrix for molten carbonate fuel cells; Yoyu tansan`en nenryo denchi denkaishitsu hojiso no shoketsu kyodo

Energy Technology Data Exchange (ETDEWEB)

Sonai, A; Murata, K [Toshiba Research and Development Center, Kawasaki (Japan)

1993-11-01

Considerations were given on pore distribution in lithium aluminate that supports electrolyte in molten carbonate fuel cells under cell operating condition, and its sintering mechanism by measuring time-based change in the linear contraction. The following findings were obtained: Pore capacity in the lithium aluminate layer has decreased in 1000-hour operation, creating pores with diameters greater than 2 {mu}m in which no carbonates have been filled; the cross-leak in reaction gases and ion resistance in the electrolyte retaining layer have increased resulting in degraded cell performance; the lithium aluminate layer has generated initial quick densification as a result of melting of the carbonates, with the more the liquid phase, the larger the linear contraction; and pores with diameters greater than 2 {mu}m are thought to have been generated as the densification of the lithium aluminate due to dissolution and reprecipitation progresses. The densification can be explained well if this is regarded to consist of a slow densification process in association with sintering of lithium aluminate particles, and progress in a sintering mechanism where solid phase has solubility against liquid phase. 9 refs., 8 figs.

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.

Smelting reduction rate of fine Wustite particles in a CO gas-conveyed bed; CO gas yuso sonai Wustite biryushi no yoyu kangen sokudo

Energy Technology Data Exchange (ETDEWEB)

Hayashi, S; Iguchi, Y [Nagoya Institute of Technology, Nagoya (Japan)

1999-06-01

Using a laboratory scale fine particles-gas conveyed bed, the reduction rates of liquid wustite with CO gas were measured. CO-CO{sub 2} mixtures having various flow rates and compositions were flowed downward through a cylindrical reactor maintained at a constant temperature of 1,723 to 1,823K. A batch of pure spherical wustite particles (mean dia.: 48.5 {mu}m) was concurrently fed into the reactor at a small constant rate and reduced in a hot zone. The reduction process was found to proceed in such a manner that metallic iron particles were enclosed inside a wustite droplet. Rate analysis was made of one dimensional mass balance equations for particles and gas in a steady moving bed under an isothermal condition using the reaction rate for a single particle taking the shrinkage into consideration. Under relatively small reducing potentials, it was concluded that the major fraction of overall reaction resistance is attributable to chemical reaction. However, under higher reducing potentials, the reduction process was estimated to include some mass transfer resistances within the liquid oxide phase. From the temperature dependence of forward chemical reaction rate constants, the activation energy was evaluated to be 90.6 kJ/mol. (author)

Joint study on smelting reduction. ; Results of elementary study and future studies. Yoyu kangen kyodo kenkyu; Yoso kenkyu no seika to kongo no torikume

Energy Technology Data Exchange (ETDEWEB)

1991-03-01

The paper outlines results of elementary study on the coal direct-use iron-making process and how to tackle with it in future. In the process coal and iron ores are used directly without prior treatments like coking and briquetting. The process is composed of three elements: smelting reducing furnace, preliminary reduction fluidized bed, gas reforming furnace. Making mathematical models as a means of study of the process, material balance and heat balance are calculated. Operational unit requirements are estimated, changing them in the range of 20-60% of the post combustion based on three fundamental processes each of which is composed of one or a combination of the three elements. The total cost is also trially calculated, estimating fixed cost including installation cost, etc. With no big differences in the iron-melting cost excluding by-products in each process, the cost may be reduced by 5-10% of that in the blast furnace process. The elementary study has continued almost satisfactorily and attained the expected target, though there still remain some problems. In 1990 the study started of a pilot plant with a 500t/day capacity. 12 figs.

1998 Annual Study Report. Standardization of corrosion resistance testing/evaluation methods for coated steel sheets; 1998 nendo seika hokokusho. Hyomen shori koban no taishokusei shiken hyoka hoho no hyojunka

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In order to develop the evaluation methods for reappearing corrosion characteristics of coated steel sheets in a short time, acid rain composition and artificial acid rain composition for the accelerated test were studied, and the cyclic corrosion tests were conducted. The literature survey shows that the main ionic species present in acid rain are Ca{sup 2+}, Mg{sup 2+}, Na{sup +}, K{sup +}, NH{sub 4}{sup +}, SO{sub 4}{sup 2-}, NO{sub 3}{sup -}, and Cl{sup -}, of which the acid rain components are SO{sub 4}{sup 2-} and NO{sub 3}{sup -}, their equivalent ratio (NO{sub 3}{sup -}/ SO{sub 4}{sup 2-}) in the Far Eastern area being 0.2 to 0.3. Therefore, the solution specified by ASTM 1141 is diluted 30 times with water to prepare the base solution for the accelerated tests, where its acidity is adjusted with a mixed acid of NO{sub 3}{sup -}/ SO{sub 4}{sup 2-} = 0.2 to 0.3 (pH: 3.0 to 4.0). Two sets of preliminary cyclic corrosion tests were conducted, one involving acid rain spraying, drying and humidification in this order, and the other acid rain spraying, humidification and drying. Analysis of the test data indicates that difference between these test cycles in corrosion rate is within a deviation range caused by different testing tools. Therefore, the former condition is adopted as the basis for the accelerated tests, because of its smaller deviation caused by different testing tools. (NEDO)

Improvement of sensitizatiuon in weld metals of austenitic stainless steels by laser surface melting treatment. Report 3. Study on low temperature sensitization in weldments of austenitic stainless steels ans its improvement by laser surface melting treatment; Reza hyomen yoyu shori ni yoru sutenresu ko yosetsu kinzoku no enbinka kaizen. 3. Osutenaito kei sutenresu ko yosetsubu no teion enbinka to reza hyomen yoyu shori ni yoru sono kaizen

Energy Technology Data Exchange (ETDEWEB)

Nishimoto, K. [Osaka Univ., Osaka (Japan). Faculty of Engineering; Mori, H. [Osaka Univ., Osaka (Japan). Graduate School; Yamamura, T. [Mitsubishi Heavy Industries Ltd., Tokyo (Japan)

1997-05-05

Laser surface melting treatment used for the improvement of intergranular corrosion resistance of sensitized austenitic stainless steel weld metal was studied. As a result, it was revealed that as compared to untreated material, sensitization was improved widely and intergranular corrosion resistance was improved to a level of base metal when laser surface melting treatment of sensitized weld metal was carried out. Further, sensitization effect at a condition of laser traveling velocity of 0.00167m/s was slightly insufficient compared to that of laser traveling velocity above 0.00833m/s. This phenomena was caused due to the existence of {delta} ferrite that accelerates the precipitation of Cr carbides inside the laser treatment portion and together with this, the Cr carbides are precipitated in {delta}/{gamma} grain boundary due to the effect of laser heat cycle with insufficient cooling velocity and this has caused desensitization. 16 refs., 13 figs., 3 tabs.

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)

Electrolyte loss mechanism of molten carbonate fuel cells. 2.; Application to the cell with matrix electrolyte layer; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 2.; Matrix gata denkaishitsuso wo yusuru denchi eno oyo

Energy Technology Data Exchange (ETDEWEB)

Sonai, A; Murata, K [Toshiba Research and Development Center, Kawasaki (Japan)

1993-11-01

A single cell of molten carbonate fuel cell using a matrix electrolyte layer fabricated by using the doctor blade process has been operated for several thousand hours, measured of electrolyte loss amount, and analyzed by using a new electrolyte loss mechanism. The result may be summarized as follows: according to a result of measuring the matrix layer pore distribution, the average pore size has increased little by little; pores with diameters greater than 2 {mu}m at which no electrolyte retention becomes possible remain at nearly constant ratio up to 1800 hours, but increased after 2500 hours; the pore capacity in ports with the largest electrolyte retaining diameter of 2 {mu}m or less showed slight decrease with time in the anode, and an initial decrease followed by flatness, and then a sharp decrease after 1800 hours in the matrix layer; the electrolyte loss measurement values have remained nearly constant for 25 hours to 1800 hours, but increased sharply thereafter; and the electrolyte loss in this single cell due to pore capacity decrease in pores as power generating parts with diameters smaller than 2 {mu}m was explained quantitatively by a new electrolyte loss mechanism. 11 refs., 6 figs.

Effect of volume change of coal during plastic and resolidifying phase on the internal gas pressure in coke ovens; Sekitan nanka saikoka katei ni okeru taiseki henka ga cokes ro no nanka yoyu sonai gas atsu ni oyobosu eikyo

Energy Technology Data Exchange (ETDEWEB)

Nomura, S; Arima, T [Nippon Steel Corp., Tokyo (Japan)

2000-08-01

The coking pressure in coke oven, which is caused by the internal gas pressure in the coal plastic layer, is determined by the gas permeability of the layer. The gas permeability of the plastic layer depends on its density as well as the physical property of the plastic coal itself The plastic layer is between the coke layer and the coal layer and the effect of the volume change of these outer layers, i.e. contraction and compression, on the density and the internal gas pressure of the plastic layer was studied. Sandwich carbonization test, where different coals were charged in the test coke oven, showed that the internal gas pressure in the plastic layer depends not only on the one kind of coal in plastic phase but also on the other kind of coal in resolidifying phase near the oven walls. The relative volume of coke transformed from the unit volume of coal was measured using X-ray CT scanner and it varied greatly across the coke oven width depending on the kinds of coals. The volume change of coal during plastic and resolidifying phase affects the density and the internal gas pressure of the plastic layer The relative volume of semicoke and coke transformed from the unit volume of coal near the oven walls is higher for a high coking pressure coal than that for a low coking pressure coal. This leads to the high density of the plastic layer and the generation of dangerously high internal gas pressure in the oven centre. (author)

Mechanism of spark generation from Japanese toy firework (senko-hanabi). ; Structural-Oxidizing reaction of micro graphite crystals in molten K sub 2 Sn. Senko hanabi no jikkenteki kosatsu. ; Yoyu K sub 2 Sn chu no sekiboku bikessho no kozo teki sanka hanno

Energy Technology Data Exchange (ETDEWEB)

Ito, H. (The University, of Tokyo, Tokyo (Japan))

1991-12-20

Considerations were given on the spark generating mechanism of graphite particles in molten salt polysulfide through experiments on Japanese sparklers. The firework composition mixed consisted of two kinds: KNO{sub 3}, S, amorphous carbons, charcoal and lamp black, and K{sub 2}CO{sub 3}, S, charcoal and lamp black. The main constituent in fire balls is molten salt polysulfide. The O{sub 2} generated from combustion oxidizes C and S, whereas the generated K{sub 2}CO{sub 3} reacts with S to produce K{sub 2}Sn. In the KNO{sub 3} system, the calorific power reaches the maximum with lamp black contained at 10-15%. This is thought because the K{sup +} expands the space between the graphite crystal layers making the oxidation to take place more easily into their inner sides. On the one hand, the calorific power reduced with the lamp black at more than 16% would be because the lamp black clogging the crystalline spaces restricting the oxidation. It is thought that condensation and decomposition of micro graphite crystals occur simultaneously in the fire balls. It is also believed that the micro graphite crystals jumped out as a result of gas pressure from inside the crystals generated with the progress of oxidation break off at once because of the resistance of air together with the effect of the K{sup +} in the salt polysulfide (mutual separation of each layer). 9 refs., 6 figs., 1 tab.

Fiscal 1997 report on the results on the international standardization R and D. Development of chemical methods to analyze/evaluate metallic coatings of surface treated steel coating sheets; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Hyomen shori koban mekkiso no kagaku bunseki hyoka hoho no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-03-01

The paper studied the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. Chemical composition and coating thickness (g/m{sup 2}) of 14 kinds of specimens including alloy coatings and organic coating with zinc and aluminum as base were analyzed by the above-mentioned methods to examine the relation between the both. As the chemical analysis method, used was inductively coupled plasma atomic emission spectrometry. To study the relation between the methods, it was found to be necessary to recognize morphology at the boundary between the coating and base steel using, for example, scanning electron microscope (SEM) and electro-probe micro-analysis (EPMA). To measure traceability of the analysis method, with the chemical analysis method as a judgement method, it is necessary to make reference materials by coating materials, to use the calibration graph confirmed by the materials and to adopt the glow discharge optical emission spectrometry. On the basis of such way of thinking, drafts were worked out for the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. 7 refs., 117 figs., 33 tabs.

Fiscal 1999 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Development of environmentally friendly chromium-free plating technology and research on its practical application; 1999 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Kankyo ni yasashii kuromu daitai mekki gijutsu kaihatsu to sono jitsuyoka kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

In this research, the seeds provided by Technology Research Institute of Osaka Prefecture and Nomura Plating Co., Ltd., relative to their plating processes using ion exchange membranes and metal anodes are utilized. Efforts are made to prolong the bathing life of the Ni-W alloy plating solution, to put the plating bath in an enclosure, to develop a chromium-free plating technology wherewith bating life is longer, environmental impact is smaller, and resistance to corrosion is higher, and experiments and tests are conducted for industrialization and for the practical application of the developed technologies. At Technology Research Institute of Osaka Prefecture, electrolytic Ni-W alloy plating was taken up. An insoluble anode separated from the plating solution by a cation exchange membrane and plural metal anodes were brought into a new process and, into the same, novel technologies were further introduced, which were a metal ion supply method in which the distribution of current to 3 anodes was regulated and the employment of a sacrificial anode decomposition agent. The new process was investigated for its validity and difficulties. Furthermore, Ni-W-P alloy plating was studied and a mirror-like Ni-W-P alloy plate was developed in a phosphorous acid added bath without detriment to the non-waste solution plating process, and the plate exhibited high corrosion resistance in a CASS (copper-accelerated acetic acid salt spray) test. (NEDO)

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)

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)

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)

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)

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)

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)

FY 1998 report on the result of R and D projects by local consortiums. Rare metal recovery and resourcing of residual slags from metal plating wastes and aluminum dross by continuous thermit reaction (CTR) system; 1998 nendo CTR (Continuous Termit Reaction) System ni yoru aluminium dross to mekki surajji kara no energy less, rare metal kaisei process to sono slag no saishigenka seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

The R and D project has been implemented for treating metal plating wastes (sludge) and aluminum dross in a melting furnace operated in a reducing atmosphere, in order to make the wastes harmless and recover the rare metals by the thermit reactions. The theoretical analysis of the powder properties has produced the desired powder pretreatment conditions, such as drying/firing conditions, mixing ratio and composition, forming conditions, and characteristics of the formed articles. For recovering the useful metals, it is confirmed that the thermit reactions proceed efficiently in a high-temperature melting furnace operated in a reducing atmosphere, and the molten metals are easily separated from the molten slag. It is also confirmed that the formed article allows separation of the metals from the residual slag more easily than the mixed powder. For the design of the continuous thermit reaction (CTR) system, it is investigated whether the products and other discharged substances can be safely handled and effectively utilized, and the control/instrumentation systems and others are established after setting the conditions for, e.g., sludge drying/firing in air, powder mixing/crushing, briquette production, and flow of the thermit reactions in a reducing atmosphere. (NEDO)

PREFACE: The Eighth Liquid Matter Conference The Eighth Liquid Matter Conference

Science.gov (United States)

Dellago, Christoph; Kahl, Gerhard; Likos, Christos N.

2012-07-01

interface tension of flat and curved interfaces from Monte Carlo simulationsA Tröster and K Binder Phase diagrams of particles with dissimilar patches: X-junctions and Y-junctionsJ M Tavares and P I C Teixeira The unbearable heaviness of colloids: facts, surprises, and puzzles in sedimentationRoberto Piazza, Stefano Buzzaccaro and Eleonora Secchi Exploring water and other liquids at negative pressureFrédéric Caupin, Arnaud Arvengas, Kristina Davitt, Mouna El Mekki Azouzi, Kirill I Shmulovich, Claire Ramboz, David A Sessoms and Abraham D Stroock The configurational space of colloidal patchy polymers with heterogeneous sequencesIvan Coluzza and Christoph Dellago Repeated sorption of water in SBA-15 investigated by means of in situ small-angle x-ray scatteringM Erko, D Wallacher, G H Findenegg and O Paris Transition of the hydration state of a surfactant accompanying structural transitions of self-assembled aggregatesM Hishida and K Tanaka The effects of topology on the structural, dynamic and mechanical properties of network-forming materialsMark Wilson Surface tension of an electrolyte-air interface: a Monte Carlo studyAlexandre Diehl, Alexandre P dos Santos and Yan Levin Water and other tetrahedral liquids: order, anomalies and solvationB Shadrack Jabes, Divya Nayar, Debdas Dhabal, Valeria Molinero and Charusita Chakravarty Diffusion coefficient and shear viscosity of rigid water modelsSami Tazi, Alexandru Boţan, Mathieu Salanne, Virginie Marry, Pierre Turq and Benjamin Rotenberg Phase behaviour of colloidal assemblies on 2D corrugated substratesSamir El Shawish, Emmanuel Trizac and Jure Dobnikar Structural properties of dendrimer-colloid mixturesDominic A Lenz, Ronald Blaak and Christos N Likos Fluid-fluid demixing of off-critical colloid-polymer systems confined between parallel platesE A G Jamie, R P A Dullens and D G A L Aarts Simulations of nematic homopolymer melts using particle-based models with interactions expressed through collective variablesKostas Ch

FY 2001 report on the results of the survey of the environmentally friendly type energy community project. Feasibility survey of the commercialization of the gasification melting system use heat supply business using container packing waste plastic and other waste as raw materials; 2001 nendo kankyo chowa gata energy komyuniti jigyo. Gaska yoyu system wo mochiita yoki hoso kei hai purasuchikku oyobi sonota no haikibutsu wo genryo to suru netsu kyokyu jigyo no jigyoka F/S chosa chosa hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2002-03-01

As to gasification melting facilities (Eco-Ene center) using container packing waste plastic and other waste as raw materials in 'the Eco-town Kochi City - Business Project,' study/evaluation of environmental conservation and business profitability were conducted. In Eco-Ene Center, power generation (power supply to users: 1,295 kW) and heat supply (27 GJ/h at maximum) are conducted using the gas product obtained from the combustion of waste. The environmental effect of introduction of Eco-Ene Center is as follows: energy conservation: 51,350-113,594 GJ/y, environmental pollution gas reduction: 1,128-4,987 t-CO2, 1,441-6,691 kg-NOx, 2,965-6,447 kg-SOx, 27,309 {mu}g-TEQ/m{sup 3} dioxin. As a result of the study of economical efficiency, the following was found out: In securing the ending cash balance such as personnel expenses, land lease cost and transportation cost, the subject is the acceptance price of container packing plastic from which a half of the profit can get, and it is necessary to receive subsidy for 1/2 of the price and reduce operating expenses. (NEDO)