Discussion on Economic and Energy Balances of Forest Biomass Utilization for Small-Scale Power Generation in Kanuma, Tochigi Prefecture, Japan
Discussion on Economic and Energy Balances of Forest Biomass Utilization for Small-Scale Power Generation in Kanuma, Tochigi Prefecture, Japan
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日本栃木县鹿沼市森林生物质利用小型发电的经济与能源平衡探讨
DOI：
--
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发表时间：
2011
影响因子：
3.2
通讯作者：
T. Yoshioka
中科院分区：
文献类型：
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作者：
K. Aruga;A. Murakami;C. Nakahata;R. Yamaguchi;T. Yoshioka
Nacrtak在这项研究中，森林生物质利用小规模发电的经济和能量平衡进行了讨论，考虑到森林生物质资源的空间分布，使用地理信息系统（GIS）在卡努马地区，日本。首先，讨论了两个发电厂的最佳规模。对于以5 MW发电能力的最佳规模运行的直接燃烧发电厂，电力成本将为23.7日元/kWh。对于以2.4MW发电容量的最佳规模运行的小型气化发电厂，电力成本将为12.8日元/kWh。由于日本的平均电价为22.2日元/kWh，因此小型气化发电厂的发电可能是经济的。采用生命周期清单（LCI）方法，分析了森林生物质资源的能量平衡和能量利用过程中的CO2排放。对于这两种类型的发电，能量输出与输入的比率计算为约20，这表明在这项研究中检查的系统可以作为一个能源生产系统是可行的。发电能力为5 MW的直燃发电的CO2排放量为754.9 tCO 2/年，而发电能力为2.4 MW的小型气化发电厂的CO2排放量为381.9 tCO 2/年。然而，替代化石燃料将导致的二氧化碳排放量减少分别为15，707吨二氧化碳/年和6，275吨二氧化碳/年。2011年6月27日1 = 114日元。
Nacrtak In this study, the economic and energy balances of forest biomass utilization for small-scale power generation are discussed, considering the spatial distribution of the forest biomass resources using the geographic information system (GIS) in the Kanuma area of Tochigi Prefecture, Japan. First, the optimum scales of two power-generation plants are discussed. For a direct combustion power-generation plant operating at an optimum scale of 5 MW generation capacity, the electricity cost would be 23.7 yen/kWh. For a small-scale gasification power plant operating at an optimal scale of 2.4 MW generation capacity, the electricity cost would be 12.8 yen/kWh. As the average electricity price in Japan is 22.2 yen/kWh, the electricity generated from the small-scale gasification power-generation plant could be economical. The energy balance and CO2 emissions from the energy utilization of forest biomass resources were analyzed using the life cycle inventory (LCI) method. For both types of power generation, the ratio of energy output to input was calculated to be about 20, indicating that the system examined in this study could be feasible as an energy production system. The CO2 emission from the direct combustion power generation with a generation capacity of 5 MW was 754.9 tCO2/year, while the CO2 emission of the small-scale gasification power plant with a generation capacity of 2.4 MW was 381.9 tCO2/year. However, the reductions in the amount of CO2 emission that would result from replacing fossil fuel were 15,707 tCO2/year and 6,275 tCO2/year, respectively. 1 = 114 yen on June 27, 2011.
考虑区域分布和技术特点的小型森林生物质气化经济分析
DOI：
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发表时间：
2007
期刊：
Journal of the Japan Institute of Energy 86 (2)
影响因子：
--
作者：
志賀大史;M. Hervault;卞 哲浩;三澤 毅;代谷誠治;H. Kasai;K. Yagi
通讯作者：
K. Yagi