Korea Institute of Industrial Technology, 35-3, Hongcheon, Ipjang, Cheonan, Chungnam 330-825, South Korea.
Bioresour Technol. 2011 Oct;102(20):9550-7. doi: 10.1016/j.biortech.2011.07.041. Epub 2011 Jul 29.
An economic analysis of biomass power generation was conducted. Two key technologies--direct combustion with a steam turbine and gasification with a syngas engine--were mainly examined. In view of the present domestic biomass infrastructure of Korea, a small and distributed power generation system ranging from 0.5 to 5 MW(e) was considered. It was found that gasification with a syngas engine becomes more economically feasible as the plant size decreases. Changes in the economic feasibilities with and without RPS or heat sales were also investigated. A sensitivity analysis of each system was conducted for representative parameters. Regarding the cost of electricity generation, electrical efficiency and fuel cost significantly affect both direct combustion and gasification systems. Regarding the internal rate of return (IRR), the heat sales price becomes important for obtaining a higher IRR, followed by power generation capacity and electrical efficiency.
对生物质发电进行了经济分析。主要考察了两种关键技术——直接燃烧汽轮机和气化合成气发动机。鉴于韩国目前的生物质基础设施，考虑了 0.5 至 5MW(e)的小型分布式发电系统。研究发现，随着工厂规模的缩小，气化合成气发动机变得更具经济可行性。还研究了有无 RPS 或热销售时经济可行性的变化。针对代表参数对每个系统进行了敏感性分析。关于发电成本，电效率和燃料成本对直接燃烧和气化系统都有重大影响。关于内部收益率（IRR），热销售价格对于获得更高的 IRR 很重要，其次是发电能力和电效率。
