Energy plant cultivation test on peat production areas and the suitability of the bioenergy for different purposes; Energiakasvien viljelykokeilu turvesuoalueilla ja saatavan bioenergian soveltuvuus eri kaeyttoekohteisiin

Energy Technology Data Exchange (ETDEWEB)

Puuronen, M.; Mikkonen, T. [Vapo Oy, Oulu (Finland)

1996-12-31

Reed canary grass plantations have been grown on 39 ha in 1995 as planned. The growths were at the Hirvineva mire in Liminka and the Ahmaneva mire in Vihanti. At the Hirvineva mire the cultivation of reed canary grass will be carried out on the area withdrawn from peat production. The Ahmaneva mire is almost totally peatland dried but not yet prepared for peat production. Utilization of e.g. municipal waste water sludges for fertilizing of the plantations, and steel plant slag and wood waste boiler ashes will be used as liming substances. The first reed canary grass harvest will be harvested in spring 1997, then it is possible to find out the effect of ashes and slag on growth, as well as the effect of different fertilizing levels on harvest at the mires. Ruukki research center has made reed canary grass plantations at the Hirvineva mire in Liminka, there the fertilization levels will be studied. Field biomasses are a newcomer on the Finnish bioenergy markets so the procurement chains will also be developed for Finnish conditions. Procurement chains have first to be designed for prevailing field biomasses such as straw and reed grass. It is naturally reasonable to utilize in the first place the prevailing biomasses. E.g. in Denmark the utilization of field biomass is very common. The experiences gained in other countries have to be applied for Finnish conditions. The effective procurement chain of peat production has to be utilized, and procurement chains will be developed in the project in order to produce biomasses profitably on peat production fields. Possible field biomasses in Finland are straw, reed grass and reed canary grass

Energy plant cultivation test on peat production areas and the suitability of the bioenergy for different purposes; Energiakasvien esim. ruokohelpin viljelykokeilu turvesuoalueilla ja saatavan bioenergian soveltuvuus eri kaeyttoekohteisiin

Energy Technology Data Exchange (ETDEWEB)

Puuronen, M.; Mikkonen, T. [Vapo Oy, Oulu (Finland)

1997-12-01

New reed canary grass plantations have been made at the Hirvineva in Liminka on 39 ha in 1996 as planned. At Hirvineva the plantation of reed canary grass was carried out on the area withdrawn from peat production. The peat layer depth was 0 - 20 cm. Municipal waste water sludges were used for fertilising the plantations in order to reduce the fertilising costs. The Kemper cutting machine was tested at the natural common reed area in the Liminka gulf in the spring 1996. Compared to the reed canary grass plantations the common reed is more difficult to harvest. The reed canary grass is also more productive to harvest. The first reed canary grass harvest will be harvested in spring 1997, then it is possible to find out the effect of ashes and slag on growth, as well as the effect of different fertilising levels on harvest at the mires. Ruukki research center has made reed canary grass test plantations at the Hirvineva in Liminka where the fertilisation levels will be studied. (orig.)

Kenkätelineen suunnittelu Loviisan Aitalle

OpenAIRE

Mattila, Tommi

2015-01-01

Tässä opinnäytetyössä kuvataan ja havainnollistetaan prosessia, jonka tavoitteena oli tiedonhankinnan, tutkimuksen ja ideoinnin kautta saatavan tiedon avulla suunnitella toimiva kenkäteline. Suunniteltavan kenkätelineen tuli vastata toimeksiantajan sekä asiakkaiden toiveita ja rajoituksia, unohtamatta kuitenkaan suunnittelijan omaa kädenjälkeä. Toimeksiantajana opinnäytetyössä toimii Loviisan Aitta, joka valmistaa, myy ja maahantuo lahja- sekä käyttötavaroita. Tutkimuksen tavoitteena oli...

Bioenergy research programme. Yearbook 1996. Utilization of bioenergy and biomass conversion; Bioenergian tutkimusohjelma. Vuosikirja 1996. Bioenergian kaeyttoe ja biomassan jalostus

Energy Technology Data Exchange (ETDEWEB)

Nikku, P [ed.

1997-12-01

The aim of the programme is to increase the use of economically profitable and environmentally sound bioenergy by improving the competitiveness of present peat and wood fuels. Research and development projects will also develop new economically competitive biofuels, new equipment and methods for production, handling and utilisation of biofuels. The total funding for 1996 was 27.3 million FIM and the number of projects 63. The number of projects concerning bioenergy use was 10 and biomass conversion 6. Results of the projects carried out in 1996 are presented in this publication. The aim of the bioenergy use is to develop and demonstrate at least 3-4 new equipment or methods for handling and use of biofuels. The equipment and/or methods should provide economically competitive and environmentally sound energy production. The second aim is to demonstrate 2-3 large-scale biofuel end-use technologies. Each of these should have a potential of 0.2- 0.3 million toe/a till the year 2000. The aims have been achieved in the field of fuel handling technologies and small-scale combustion concepts, but large-scale demonstration projects before the year 2000 seems to be a very challenging aim. The aim of the biomass conversion is to produce basic information on biomass conversion, to evaluate the quality of products, their usability, environmental effects of use as well as the total economy of the production. The objective of biomass conversion is to develop 2-3 new methods, which could be demonstrated, for the production and utilisation of liquefied, gasified and other converted biofuels. The production target is 0.2-0.3 million toe/a by the year 2000 at a competitive price level. The studies focused on the development of flash pyrolysis technology for biomass, and on the study of storage stability of imported wood oils and of their suitability for use in oil-fired boilers and diesel power plants

Bioenergy Research Programme, Yearbook 1995. Utilization of bioenergy and biomass conversion; Bioenergian tutkimusohjelma, vuosikirja 1995. Bioenergian kaeyttoe ja biomassan jalostus

Energy Technology Data Exchange (ETDEWEB)

Alakangas, E. [ed.

1996-12-31

Bioenergy Research Programme is one of the energy technology research programmes of the Technology Development Centre TEKES. The aim of the bioenergy Research Programme is to increase, by using technical research and development, the economically profitable and environmentally sound utilisation of bioenergy, to improve the competitiveness of present peat and wood fuels, and to develop new competitive fuels and equipment related to bioenergy. The funding for 1995 was nearly 52 million FIM and the number of projects 66. The research area of biomass conversion consisted of 8 projects in 1995, and the research area of bioenergy utilization of 14 projects. The results of these projects carried out in 1995 are presented in this publication. The aim of the biomass conversion is to produce more bio-oils and electric power as well as wood processing industry as at power plants than it is possible at present appliances. The conversion research was pointed at refining of the waste liquors of pulping industry and the extracts of them into fuel-oil and liquid engine fuels, on production of wood oil via flash pyrolysis, and on combustion tests. Other conversion studies dealt with production of fuel-grade ethanol. For utilization of agrobiomass in various forms of energy, a system study is introduced where special attention is how to use rapeseed oil unprocessed in heating boilers and diesel engines. The main aim of the research in bioenergy utilization is to create the technological potential for increasing the bioenergy use. The aim is further defined as to get into commercial phase 3-4 new techniques or methods and to start several demonstrations, which will have 0.2-0.3 million toe bioenergy utilization potential

Sapere–menetelmän soveltuvuus toimintaterapian terapiamenetelmänä

OpenAIRE

Leino, Kaisa

2012-01-01

Ravitsemuksen ja ruokailemisen pulmat ovat kasvava haaste lasten keskuudessa. Ruokaileminen on yksi ihmisen tärkeimmistä päivittäisistä toiminnoista ja se on myös lapsen kasvun ja kehityksen ehdoton edellytys. Sapere–menetelmä on lasten ruoka- ja ravitsemuskasvatusmenetelmä, jonka avulla lapsi oppii uusia asioita ruoasta ja ruokailemisesta kaikkien aistikanaviensa välityksellä. Sapere–menetelmän avulla lapsi oppii toimimaan tarkoituksenmukaisemmin arjen askareissa. Opinnäytetyön tarkoituk...

Kirjanpito-ohjelmistojen soveltuvuus ja kartoitus tilitoimistotyöhön

OpenAIRE

Kesseli, Dmitri

2013-01-01

Smart Office Oy on vuonna 1995 perustettu Helsingissä toimiva pienikokoinen tilitoimisto. 2000-luvun lopussa yrityksen toimitusjohtaja havaitsi kasvavan tarpeen modernisoida yrityksensä kirjanpitoa. Päätös osoittautui hankalaksi, minkä vuoksi sitä lykättiin myöhemmäksi. Yrityksen kasvutavoitteet sekä kehittyvä markkinatilanne kuitenkin pakottivat muutostarvetta. Lopuksi vuonna 2012 tehtävän päätti ottaa vastaan työharjoitteluun palkattu taloushallinnon opiskelija. Tämän opinnäytetyön tark...

Research on use of bioenergy; Bioenergian kaeyttoe - tutkimusalueen katsaus

Energy Technology Data Exchange (ETDEWEB)

Helynen, S.

1995-12-31

Drying of biomass with hot gases and steam has been modelled in fixed and solid beds based on experimental results by VTT Energy. The pilot plant of bed mixing dryer at Kuusamo district heating power plant has tested successfully with peat, bark and saw dust by IVO. The dryer increases the overall thermal efficiency of the plant 10 - 15 %. An effective and dust free receiving station was designed for wood and peat fired power plants. Surplus time for unloading and sampling was decreased and fine dust control was improved. Development work of a system for receiving, crushing and screening recycled fuel material was also launched. Suppression control of fires and explosions in storages were studied by means of experimental tests with international partners. Two concepts on pressurized piston feeder, needed for pressurized combustion and gasification concepts, have been designed by Foster Wheeler and IVO. Concepts were tested with different types of biomass. Feeders are ready for full-scale demonstration plants. Competitiveness of new small scale power plant concepts were compared to a conventional steam boiler and turbine concept. New concepts include atmospheric gasification with diesel engines, combustion of pulverized wood in a gas turbine and diesel engine using flash pyrolysis oil. New concepts have technical uncertaintities, but their possibilities to become competitive compared to conventional technology are promising

Research on use of bioenergy; Bioenergian kaeyttoe - tutkimusalueen katsaus

Energy Technology Data Exchange (ETDEWEB)

Helynen, S

1996-12-31

Drying of biomass with hot gases and steam has been modelled in fixed and solid beds based on experimental results by VTT Energy. The pilot plant of bed mixing dryer at Kuusamo district heating power plant has tested successfully with peat, bark and saw dust by IVO. The dryer increases the overall thermal efficiency of the plant 10 - 15 %. An effective and dust free receiving station was designed for wood and peat fired power plants. Surplus time for unloading and sampling was decreased and fine dust control was improved. Development work of a system for receiving, crushing and screening recycled fuel material was also launched. Suppression control of fires and explosions in storages were studied by means of experimental tests with international partners. Two concepts on pressurized piston feeder, needed for pressurized combustion and gasification concepts, have been designed by Foster Wheeler and IVO. Concepts were tested with different types of biomass. Feeders are ready for full-scale demonstration plants. Competitiveness of new small scale power plant concepts were compared to a conventional steam boiler and turbine concept. New concepts include atmospheric gasification with diesel engines, combustion of pulverized wood in a gas turbine and diesel engine using flash pyrolysis oil. New concepts have technical uncertaintities, but their possibilities to become competitive compared to conventional technology are promising

Research on use of bioenergy; Bioenergian kaeyttoe. Tutkimusalueen katsaus

Energy Technology Data Exchange (ETDEWEB)

Helynen, S [VTT Energy, Jyvaeskylae (Finland)

1997-12-01

The aims of Bioenergy Research Programme have been achieved in the field of fuel handling technologies and small scale combustion concepts but 3 - 4 large scale demonstration projects (0,2 - 0,3 million toe/year per utilization concept) before the year 2000 seems to be a very challenging aim. Ignition and explosion properties of wood and agro biomasses and biomass-coal mixtures are determined in atmospheric and pressurized conditions by VTT Energy with Spanish, French, Dutch and German partners in JOULE-project. Explosion suppression systems have also been tested successfully in pressurized conditions up to 10 bar with British partners. Feasibility of reed canary grass for chemical pulp and fuel is evaluated in a large FAIR project. VTT Energy is responsible for pelletising of fuel fraction, combustion of pellets, gasification and combustion of pulverized fuel fraction. Development of a system for receiving, crushing and screening recycled fuel material was concentrated on a heavy-duty two-rotor crusher and a crushing screen by BMH Wood Technology. Primary and secondary crushing are needed for optimum particle size distribution. The system will be demonstrated in Sweden. Dry gas-cleaning methods for gasification-diesel power plants and for other atmospheric-pressure applications of biomass gasification are developed by VTT Energy. Catalytic gas-cleaning methods are tested for engine applications in PDU-scale. Removal of trace metals, chlorine and other harmful contaminants of CFB gasification is studied with regard to co-combustion of the product gas in PC boilers

OpenOffice.org -toimisto-ohjelmiston soveltuvuus Sastamalan Tukipalvelu Oy:lle : selvitys

OpenAIRE

Ojanen, Olli-Veikko

2009-01-01

Tässä opinnäytetyössä selvitettiin OpenOffice.org toimisto-ohjelmiston soveltuvuutta Sastamalan Tukipalvelu Oy:lle, joka huolehtii osakkaittensa tieto-, talous- ja henkilöstöhallinnon palveluista. Sastamalan Tukipalvelu Oy:n osakkaina ovat Kiikoisten, Lavian ja Punkalaitumen kunnat, Sastamalan kaupunki, Sastamalan perusturvakuntayhtymä sekä Sastamalan koulutuskuntayhtymä. Selvityksen tavoitteena oli tuoda esille OpenOffice.org -toimisto-ohjelmistoon siirtymisen hyötyjä, joi...

LoRa IoT -radion soveltuvuus käytettyjen työkoneiden tiedonsiirtoon

OpenAIRE

Hasu, Lassi

2017-01-01

Opinnäytetyön tarkoituksena oli tutkia LoRa-radiotekniikan soveltuvuutta lastinkäsittelylaitteiden tuottaman datan tiedonsiirtoon. LoRa on teollisen internetin sovelluksia varten kehitetty pitkän kantaman radiotekniikka. Tavoitteena oli löytää käyttötapauksia, joihin LoRa-tekniikka soveltuu etsittäessä kustannustehokasta radiotekniikkaa erityisesti käytettyihin lastinkäsittelylaitteisiin. Työn toimeksiantaja oli Cargotec Finland Oy:n Kalmar-liiketoimintayksikkö. Työn tutkimusmenetelmänä käyte...

Tekla Structures -ohjelmiston soveltuvuus tietomallipohjaiseen rakenne- ja elementtisuunnitteluun Venäjällä

OpenAIRE

Rantala, Lauri

2011-01-01

Tämän insinöörityön tavoitteena oli tutkia suomalaisen ja venäläisen normiston mukaista tietomallipohjaista rakenne- ja elementtisuunnitteluprosessia sekä Tekla Structures –ohjelmiston soveltuvuutta venäläiseen elementtisuunnitteluun. Insinöörityössä tutkittiin, miten mallinnustyö onnistuu ja onko mallintaminen taloudellisesti kannattavaa. Lisäksi Tekla Structures –ohjelmistoa kehitettiin Rakennesuunnittelutoimisto Sormunen & Timonen Oy:n tarpeiden mukaiseksi. Aluksi työssä per...

Work safety of farmers and heating entrepreneurs in 2008; Tyoeturvallisuus bioenergian tuotannossa maatiloilla

Energy Technology Data Exchange (ETDEWEB)

Lauhanen, R.; Suojaranta, J.; Raety, H.; Petaeinen, J.

2009-07-01

There were at least 327 heating entrepreneurs responsible for fuel procurement and heating production in Finland at the end of 2007 according to TTS Research. Recently, the expansion of bio energy business has become a large one. This new business, however, may contain many risks, too. There have been discussions on the well-being and work safety of heating entrepreneurs and farmers in the South Ostrobothnia. In order to avoid the occupational risks and accidents of farmers and heating entrepreneurs, this study aimed at finding out the occupational risks and work safety of this target group. The study was funded by the Work safety funds of the Finnish Mela organization (http://www.mela.fi) and by Seinaejoki University of Applied Sciences /http://seamk.fi). A questionnaire for 328 farmers and heating entrepreneurs was carried out in the spring 2008. In addition, study visits to ten sampled heating plants in South Ostrobothnia were carried out. The farmers and heating entrepreneurs were interviewed and the work conditions were measured and determined on the heating plants with the maximal effectiveness of 1 MW. Domestic renewable forest energy is a possibility in the rural areas of Finland. The heating entrepreneurs and farmers used to be in a hurry according to questionnaires. The weak profitability and the changing bio energy policies were problems in the heating entrepreneurship. The occupational accidents had occured, especially, in energy-wood logging operations and when fuel wood was prepared mechanically. Occupational accidents had also occured in the repairing of forest machines, chippers and trucks, and in the repairing of the heating plant facilities. The passageways of the heating plants should be planned more carefully according to the interviews. The loud of 64-81 dB, the mean temperature of 28,3 Celsius degrees and mean air humidity of 26% were measured in the investigated heating plants. Especially, advice and training in safe energy wood logging will be needed by the heating entrepreneurs and farms. In addition, the target group is in the need of advice in the fire safety of heating plants. (orig.)

Bioenergy research programme. Yearbook 1996. Production of wood fuels; Bioenergian tutkimusohjelma. Vuosikirja 1996. Puupolttoaineiden tuotantotekniikka

Energy Technology Data Exchange (ETDEWEB)

Nikku, P [ed.

1997-12-01

The aim of the programme is to increase the use of economically profitable and environmentally sound bioenergy by improving the competitiveness of present peat and wood fuels. Research and development projects will also develop new economically competitive biofuels, new equipment and methods for production, handling and utilisation of biofuels. The total funding for 1996 was 27.3 million FIM and the number of projects 63. The number of projects concerning wood fuels production was 36. The main goals of the research are to develop new production methods for wood fuels in order to decrease the production costs to the level of imported fuels (100 km distance). The second goal is to decrease the small scale production costs by 20 % as compared with the 1992 technology level. Also, new harvesting technology and new work methods will be developed for forest owners and small-entrepreneurs in the course of the programme. Results of the projects carried out in 1996 in this programme are presented in this publication. The integrated harvesting methods, which supply both raw material to wood products industry and wood fuel for energy production, have been chosen the main research areas because they seem to be most promising. Most of the projects are focused in the wood fuel production from first thinnings and from final fellings. The projects broadly covered the research area focusing from material flows, productivity studies, basic wood properties to several case studies. The follow up project of Evaluation-drum chipper was completed with good fuel quality and productivity results. Also the large Forest Energy Project of Central Finland was completed. The project was a significant technology transfer and information dissemination project. (orig.)

Large-scale production of bioenergy by the side of fuel-peat; Bioenergian suurtuotanto polttoturpeen rinnalla

Energy Technology Data Exchange (ETDEWEB)

Heikkilae, K. [Vapo Oy, Jyvaeskylae (Finland)

1996-12-31

The objective of the project was to clarify the large-scale production possibilities and the construction of the costs for bioenergy, and to develop the operational manners so that smaller volumes of biomasses are integrated to prevailing peat production and delivered so that peat ensures the quality of the fuel supply, as well as the prices and the reliability of deliveries. Hence it is possible to utilize the same organisation, machinery and volumes. The operation will be designed to be all-year-round so that the profitability can be improved. Another aim is to get the non-utilizeable wood-wastes into use, which would serve also the silvicultural purposes. The utilizeable municipal and other wastes and sludges could be used within biomass, and to make, using proper mixing ratios, biofuels precisely suitable for the purposes of the customer. At the grain growing areas it is possible to utilize the straw and at the seaside the reed grass

Bioenergy Research Programme, Yearbook 1995. Production of wood fuels; Bioenergian tutkimusohjelma, vuosikirja 1995. Puupolttoaineen tuotantotekniikka

Energy Technology Data Exchange (ETDEWEB)

Alakangas, E [ed.

1997-12-31

Bioenergy Research Programme is one of the energy technology research programmes of the Technology Development Center TEKES. The aim of the Bioenergy Research Programme is to increase, by using technical research and development, the economically profitable and environmentally sound utilisation of bioenergy, to improve the competitiveness of present peat and wood fuels, and to develop new competitive fuels and equipment related to bioenergy. The funding for 1995 was nearly 52 million FIM and the number of projects 66. The main goal of the wood fuels research area is to develop new production methods in order to decrease the production costs to the level of imported fuels. The total potential of the wood fuel use should be at least 1.0 million toe/a (5.5 million m{sup 3}). During the year 1995 There were over 30 projects concerning the production of wood derived fuels going on. Nearly half of them focused on integrated production of pulp wood and wood fuel. About ten projects was carried out to promote the wood fuel production from logging residues. Other topics were firewood production, production logistics and wood fuel resources. For production of fuel chips from logging residues, a new chipper truck, MOHA-SISU, was introduced. The new machine gives a new logistic solution resulting in high productivity and reasonable operating costs. In Mikkeli region three years of active work promoted the usage of wood fuel in a district power plant to the level of over 110 000 m{sup 3} of fuel chips. The production costs tend to be a little high in average, and the production chain still needs to be improved

Bioenergy Research Programme, Yearbook 1995. Production of wood fuels; Bioenergian tutkimusohjelma, vuosikirja 1995. Puupolttoaineen tuotantotekniikka

Energy Technology Data Exchange (ETDEWEB)

Alakangas, E. [ed.

1996-12-31

Bioenergy Research Programme is one of the energy technology research programmes of the Technology Development Center TEKES. The aim of the Bioenergy Research Programme is to increase, by using technical research and development, the economically profitable and environmentally sound utilisation of bioenergy, to improve the competitiveness of present peat and wood fuels, and to develop new competitive fuels and equipment related to bioenergy. The funding for 1995 was nearly 52 million FIM and the number of projects 66. The main goal of the wood fuels research area is to develop new production methods in order to decrease the production costs to the level of imported fuels. The total potential of the wood fuel use should be at least 1.0 million toe/a (5.5 million m{sup 3}). During the year 1995 There were over 30 projects concerning the production of wood derived fuels going on. Nearly half of them focused on integrated production of pulp wood and wood fuel. About ten projects was carried out to promote the wood fuel production from logging residues. Other topics were firewood production, production logistics and wood fuel resources. For production of fuel chips from logging residues, a new chipper truck, MOHA-SISU, was introduced. The new machine gives a new logistic solution resulting in high productivity and reasonable operating costs. In Mikkeli region three years of active work promoted the usage of wood fuel in a district power plant to the level of over 110 000 m{sup 3} of fuel chips. The production costs tend to be a little high in average, and the production chain still needs to be improved

Bioenergy research programme. Yearbook 1996. Peat and field biomass; Bioenergian tutkimusohjelma. Vuosikirja 1996. Turpeen ja peltobiomassojen tuotantotekniikka

Energy Technology Data Exchange (ETDEWEB)

Nikku, P [ed.

1997-12-01

The aim of the programme is to increase the use of economically profitable and environmentally sound bioenergy by improving the competitiveness of present peat and wood fuels. Research and development projects will also develop new economically competitive biofuels, new equipment and methods for production, handling and utilisation of biofuels. The total funding for 1996 was 27.3 million FIM and the number of projects 63. The number of projects concerning peat production was 7 and that of field biomass projects 4. Results of the projects carried out in 1996 are presented in this publication. The development target in the research area of peat production is to improve the competitiveness of peat by reducing the production costs by 20 % (by 5-6 FIM/MWh) from the level of 1992, and to reduce the environmental impacts. The target of the research area of peat production is possible to achieve if the sub-targets are achieved. The production costs are reduced by 5 % if the width of the production field is increased from 20 m to 60 m, by 8 % if the degree of utilisation of solar energy is increased from 30 % to 40 %, by 6.5 % if the value of peat remaining on the cutover field is reduced from 3 000 MWh to 1 500 MWh, by 3 % if light and fireproof machines are developed, and by 3 % if combined peat and wood harvesting is applied. The production costs will be reduced by 24 % if the different sub-targets are achieved. In this programme no common target for the field biomass projects was set. Field biomass projects are mainly funded by the Finnish Ministry of Agriculture and Forestry. Most of the research projects were completed in 1996. (orig.)

Suitability of Haestholmen Loviisa for final disposal of spent fuel. Preliminary study; Loviisan Haestholmenin soveltuvuus kaeytetyn polttoaineen loppusijoitukseen. Esiselvitys

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-12-01

Based on the amendment of the Nuclear Energy Act the spent nuclear fuel of Imatran Voima Oy (IVO) will be disposed of in Finland instead of returning it to Russia. After Teollisuuden Voima Oy (TVO) and IVO had founded a joint company Posiva Oy the work IVO started in 1995 was brought together with the ongoing research programme for final disposal of spent fuel and extended to a feasibility study. The feasibility study was launched in the beginning of 1996. The geological evaluation was mainly based on the previous investigations at the island. For this study the complementary geological mapping has been carried out at the Haestholmen and on the surrounding area with a radius of 20 km. (49 refs.).