Long-term feasibility of timber and forest biomass resources at an intermediate and mountainous area (2) : Examining the optimum scale of an energy plant(<SPECIAL ISSUE>BIOMASS)
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- ARUGA Kazuhiro
- Fac. of Agric., Utsunomiya Univ.
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- TASAKA Toshiaki
- Fac. of Agric., Utsunomiya Univ.
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- YOSHIOKA Takuyuki
- Coll. of Biore. Sci., Nihon Univ.
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- SAKURAI Rin
- Grad. Sch. of Agric. and Life Sci., the Univ. of Tokyo
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- KOBAYASHI Hiroshi
- Grad. Sch. of Agric. and Life Sci., the Univ. of Tokyo
Bibliographic Information
- Other Title
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- 中山間地域における木材および森林バイオマス資源の長期的な利用可能性(2) : 最適エネルギープラント規模の検討(<特集>バイオマス)
- 中山間地域における木材および森林バイオマス資源の長期的な利用可能性(2)最適エネルギープラント規模の検討
- チュウサンカン チイキ ニ オケル モクザイ オヨビ シンリン バイオマス シゲン ノ チョウキテキ ナ リヨウ カノウセイ 2 サイテキ エネルギープラント キボ ノ ケントウ
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Abstract
In this study, the optimum scale of a power-generation plant was discussed for the model area using statistical data on a direct combustion power plant and a small-scale gasification power plant. With regard to the direct combustion power generation, the optimum scale of a power-generation plant was a generation capacity of more than 3 MW and an energy-conversion efficiency of more than 18%. Its fuel cost of electricity was 10.5 yen/kWh. On the other hand, the optimum scale of a small-scale gasification power plant was a generation capacity of 1 MW and an energy-conversion efficiency of 27%. Its fuel cost was 4.3 yen/kWh. In the distributed system, the optimum scale of six small-scale gasification power plants was a generation capacity of 0.1 MW and an energy-conversion efficiency of 20%. In order to limit fuel costs of direct combustion power generation up to 10.17 yen/kWh calculated by the average electricity price in Japan, 18.17 yen/kWh, minus the assumed fixed costs of the power-generation, 8 yen/kWh, it is necessary to improve energy-conversion efficiency or to construct forest roads. Forest road construction reduces fuel costs of electricity due to the reduction of skidding/yarding distances, as well as total cost including the cost of forest road construction. Therefore, it is important to reduce fuel costs remarkably by developing forest road networks. It is important to use small-scale gasification power-generation for energy utilization of forest biomass resources because of its higher energy-conversion efficiency.
Journal
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- Journal of The Japan Forest Engineering Society
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Journal of The Japan Forest Engineering Society 21 (3), 185-192, 2006
The Japan Forest Engineering Society
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Details 詳細情報について
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- CRID
- 1390282679440010112
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- NII Article ID
- 110008726687
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- NII Book ID
- AN10531146
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- ISSN
- 21896658
- 13423134
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- NDL BIB ID
- 8629796
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed