著者

村岡 洋文

出版者

一般社団法人日本エネルギー学会

雑誌

日本エネルギー学会誌 = Journal of the Japan Institute of Energy (ISSN:09168753)

巻号頁・発行日

vol.86, no.3, pp.153-160, 2007-03-20

参考文献数

23

被引用文献数

7

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Notwithstanding huge geothermal resource potentials in Japan and a variety of advantages of geothermal power such as the domestic, renewable, clean and stable characteristics, Japanese geothermal market has faced a crucial withering, since geothermal energy was excluded from the category of "new energy" in 1997. This Government's retreat might have partly been due to the obstacles of geothermal developments specified in Japan: the restriction in the National Parks, friction with pre-existing numerous hot spring spas, long lead time by legislation and regulation, and high initial cost of geothermal power integrating all of them. However, the present geothermal energy policy in Japan is an exceptional case in the world, where efforts of geothermal utilizations are spreading even over less-potential geothermal resource countries. Only recently, indications of reinforcing geothermal energy has appeared in Japan: the positive discussion for geothermal energy to be revived into "new energy", active international geothermal cooperation, spreading of direct geothermal use and initiation of low-temperature power generations using hot springs. These efforts will reactivate the Japanese geothermal market in the near future.

著者

久保田 篤

出版者

一般社団法人日本エネルギー学会

雑誌

日本エネルギー学会誌 = Journal of the Japan Institute of Energy (ISSN:09168753)

巻号頁・発行日

vol.85, no.5, pp.398-404, 2006-05-20

参考文献数

5

被引用文献数

1

著者

森泉 由恵 SUKSRI Piyawan 本藤 祐樹 和気 洋子

雑誌

日本エネルギー学会誌 = Journal of the Japan Institute of Energy (ISSN:09168753)

巻号頁・発行日

vol.92, no.5, 2013-05-20

著者

山崎 由大

出版者

一般社団法人日本エネルギー学会

雑誌

日本エネルギー学会誌 = Journal of the Japan Institute of Energy (ISSN:09168753)

巻号頁・発行日

vol.84, no.12, pp.1019-1025, 2005-12-20

被引用文献数

5

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This report introduces five biomass gasification power generation plants in Europe, three nations, Switzerland, Austria and Germany, where the author visited November 2004. PYROFORCE in Switzerland used fixed bed gasification system with 200kW GE-Jenbacher gas engine. This gasification system promotes very little tar even as a fixed bed gasifier because of optimization of shape of reactor and airflow. Gussing in Austria uses internally circulating fluidized-bed gasification system. Characteristic of this system are to promote medium calorific gas because of using steam and to use combustion heat efficiently for gasification. This plant is equipped with 2000kW GE-Jenbacher gas engine. Electricity is sold for homes and factories, heat is supplied to regional heating system in the city. Future Energy GmbH and CHOREN GmbH in Germany operate the entrained bed gasification system. In Future Energy, there are three type entrained bed gasification systems for fuel types. CHOREN has established Carbo-V system with entrained bed with the charcoal fire pit. All of plants use woody biomass. Thus, the author thinks it difficult to transfer European techniques to Japan without modifications because of different surroundings. It is also needed to develop not alone technology, but policy to adopt biomass generation in Japan.