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首页> 外文期刊>Journal of Infrastructure Systems >Life-Cycle Inventory of Energy Use and Greenhouse Gas Emissions for Two Hydropower Projects in China
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Life-Cycle Inventory of Energy Use and Greenhouse Gas Emissions for Two Hydropower Projects in China

机译：中国两个水电项目的能源使用和温室气体排放的生命周期清单

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Two different sized hydropower projects in China, one with a capacity of 44 MW and the other of 3,600 MW, were examined through life-cycle assessment (LCA) from the perspective of both sustainability and environmental impact and the influence of project scale. Using the economic input-output based LCA approach, energy use and greenhouse gas (GHG) emissions were quantified. The resulting energy payback ratios were found to be 7 and 48, whereas the normalized GHG emissions were 44 and 6 g CO_2 equivalent per kW h of electricity production, both in favor of the larger project. Compared with published data on other renewable and nonrenewable options, temperate hydropower, particularly large hydropower, is indicated as an efficient electrical source with relatively low GHG emissions.
机译：从生命周期评估（LCA）的角度，从可持续性和环境影响以及项目规模的影响的角度，对中国的两个不同规模的水电项目进行了研究，一个容量为44兆瓦，另一个容量为3600兆瓦。使用基于经济投入产出的LCA方法，对能源使用和温室气体（GHG）排放进行了量化。结果表明，能源回报率为7和48，而标准化的GHG排放量为每千瓦时发电44和6 g CO_2当量，均支持较大的项目。与其他可再生能源和不可再生能源的已公布数据相比，温带水电，特别是大型水电，被认为是温室气体排放量相对较低的有效电源。

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