【摘要】 采用生命周期评价分析方法对水力发电系统的温室气体排放系数进行研究,建立温室气体排放的生命周期清单,并与燃煤发电系统进行比较.对水电站从材料和能源消耗、大坝建设、运输、电厂运行等过程的输入和排放进行分析的结果表明,每生产1kWh的电量,水力发电生命周期的温室气体总排放为19.24g CO2当量,而燃煤发电1kWh的排放量在1 000g CO2当量左右,说明水力发电在温室气体减排方面的优势十分显著.更多还原

【Abstract】 This study presents the result of a life cycle analysis(LCA) of greenhouse gas emissions from the hydropower plants.The life-cycle inventory analysis encompasses the material and energy consumptions,transport,dam construction,as well as dam operation.Life cycle greenhouse gas emission per kWh of hydropower generation is found to be 19.24g CO2 equivalent;compared with the greenhouse gas emission of coal-fired power generation is about 1000 g CO2 equivalent per kWh.The results show that hydropower has very significant advantages in the greenhouse gas emission reduction.更多还原