生物质直燃发电的生命周期环境评价和能效分析
文献类型：学位论文
| ; | |
| 作者 | 林琳 |
| 学位类别 | 硕士 |
| 答辩日期 | 2007-06-09 |
| 授予单位 | 中国科学院广州能源研究所 |
| 授予地点 | 广州能源研究所 |
| 导师 | 赵黛青 |
| 关键词 | 生物质发电 直燃发电 生命周期评价 能源效率 清洁利用 |
| 其他题名 | LCA and energy consumption analysis of biomass-fired power generation |
| 中文摘要 | Biomass resources is the fourth largest energy resource of the world ,which is only next to coal, oil, natural gas, accounting 14% of the world energy consumption, in the developing countries, biomass energy consumption is up to more than 38% . With the increasing demand for energy and coal, oil and other fossil energy consumption quickly, biomass will become the most important component for developing new energy and renewable energy strategy in the future. The biomass resources are abundant in China, biomass energy development and utilization of China's current energy supply, especially in rural areas occupied an important position, research and development and efficient technology of biomass use, suitable for China's national conditions at this stage to reduce fossil fuel pollution, create huge economic and environmental benefits. in recent years, The straw-fired combustion power generation system is an efficient use of biomass energy technology. Denmark, Holland etc. all own mature stalk-based power generation technology, and all have already had the successful case example. The method of Life cycle assessment is adopted in the study. On the base of the level in 2001 of industrial and agricultural production in China, the statistics of the life cycle environmental emission of more than ten industrial and agricultural products are collected. The life cycle system boundary of 25MW straw-fired power generation is established and discussed. Life cycle inventory and assessment include four phases: biomass collection, biomass transportation, equipment manufacture and biomass plant operation. After inventory, the environmental impact types are classified into Nonrenewable Resource Depletion, Renewable Resource Depletion, Global Warming, Ozone Depletion, Acidification, Photochemical Ozone Creation, Nutrification, Human Toxicity, Aquatic Ecotoxicity, Solid Waste and Dust. Then the potential of environmental impact are normalized and weighted, so the life cycle assessment result of biomass gasification power generation can be drawn. On the base of life cycle inventory of biomass gasification power generation, the environmental cost internalization consists of gas emission (including dust, SO2, CO, NOx, CH4, CO2 and so on). Meanwhile the straw biomass direct combustion power generation systems energy consumption from the perspective of the life cycle is analyzed. Their energy efficiency evaluations, the comprehensive utilization of biomass energy were discussed. Comparing coal, biomass burning straw straight power and biomass gasification power generation systems based on the data base. Through the life cycle environmental assessment of biomass, we can draw the conclusion that biomass direct combustion power generation system is friend-environmental power system, the influence of biomass transportation phase on the whole assessment system is small, but the plantation of energy crop should be brought to our attention. The efficiency is higher than the traditional family and slightly higher than biomass gasification power generation systems, But lower than the conventional thermal power efficiency. Improving technology to raise the utilization efficiency is the solution to the energy crisis. |
| 语种 | 中文 |
| 公开日期 | 2011-07-10 ; 2011-07-15 |
| 页码 | 82 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/4015]  |
| 专题 | 中国科学院广州能源研究所 |
| 推荐引用方式 GB/T 7714 | 林琳. 生物质直燃发电的生命周期环境评价和能效分析, LCA and energy consumption analysis of biomass-fired power generation[D]. 广州能源研究所. 中国科学院广州能源研究所. 2007. |
入库方式： OAI收割
来源：广州能源研究所
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