核燃料循环“一次通过”情景分析研究

Preliminary Study on Once-through Fuel Cycle Scenario

在我国大力发展核电和建立先进闭式燃料循环体系的前提下,为了核燃料循环各环节相互匹配,有机协调地发展核电,需对核燃料循环各环节的规模、布局等开展模拟分析研究。为了综合比较闭式燃料循环在铀资源利用率、环境友好型等方面的优势,还需对核燃料循环的“一次通过”方式进行分析研究。根据我国核电目前和中长期发展规划,假设2050年中国核电装机容量分别达到100 GW、200 GW和300 GW,核电站全部采用压水堆,核燃料循环采用“一次通过”方式,利用简化模型,计算分析了近100年内累计需要的天然铀、每年需要的天然铀、每年需要的分离功、累计产生的乏燃料和需要离堆暂存的乏燃料量等关键数据。

China is developing nuclear power rapidly,and it has been announced that China will take the technical route of closed fuel cycle.So it is necessary to carry out scenario analysis of nuclear fuel cycle to give information on uranium demands,development scale of different process of nuclear fuel cycle.It’s necessary to analyze“once-through cycle”for comparison of the advantages between‘closed nuclear fuel cycle’and“oncethrough cycle”in terms of the availability of uranium resources and environmental friendship.According to development of nuclear power in China now and the near-and medium-term development plan,given the fact that nuclear power will reach 100 GW,200 GW and 300 GW respectively in 2050,all nuclear power plants adopt PWRs,and the once-through technical routine is adopted,the demand of accumulated uranium and separate work are calculated with simplified model.The amount of spent fuel and spent fuel storage are also analyzed.