煤电改核电的经济性分析  

Economic analysis of coal-to-nuclear power conversion

作　　者：吴晓桐 许松 翁挺伟 张文佳[2] 张广旭 张尧立 WU Xiaotong;XU Song;WENG Tingwei;ZHANG Wenjia;ZHANG Guangxu;ZHANG Yaoli(College of Energy,Xiamen University,Xiamen 361102,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]厦门大学能源学院,福建厦门361102 [2]北京空间飞行器总体设计部,北京100094

出　　处：《厦门大学学报(自然科学版)》2025年第1期204-210,共7页Journal of Xiamen University:Natural Science

摘　　要：[目的]探究将燃煤电站改造成核电站的经济性.[方法]采用G4-ECONS工具,考虑了投资成本、燃料循环前端和后端成本、固定和可变运维成本及退役成本等多个因素,评估煤电改核电方案的净现值和平准化度电成本,并对建设期、折现率和运维成本等参数开展经济敏感性分析.[结果]煤电改核电能够有效降低平准化度电成本,提升净现值;提高核电厂运行负荷和延长反应堆使用寿命能够进一步增加煤电改核电的经济效益.[结论]该研究为煤电改核电提供了经济性评价模型和数据,为推动该方案的产业化提供有力的支持.[Objective]Climate change is one of the most pressing challenges facing the world today.In the energy sector,carbon dioxide emissions from coal-fired power plants are a major contributor to the current climate crisis.Nuclear power plants,with their similar power generation principles,offer a potential clean alternative.Various international proposals for coal-to-nuclear power conversion have been put forward,with the most feasible suggestion being the replacement of coal-fired boilers with nuclear reactors while retaining the entire steam supply and power generation systems.However,the economic viability of this proposal has not been thoroughly analyzed.[Methods]This study constructs a detailed economic model for the conversion of coal-fired power plants to nuclear power plants using the G4-ECONS tool.The model accounts for investment costs,operating costs,front-end and back-end fuel cycle costs,and fixed and variable operation and maintenance costs,among other factors,to evaluate the net present value and levelized cost of electricity for the coal-to-nuclear power conversion scheme.Sensitivity analyses are conducted on parameters such as construction period,discount rate,and operating costs.[Results]The findings indicate that converting coal-fired power plants to nuclear power plants can effectively reduce the levelized cost of electricity and increase the net present value.Sensitivity analysis shows that increasing the operating load of nuclear power plants and extending the lifespan of reactors can further enhance the economic benefits of coal-to-nuclear conversion.[Conclusion]Retrofitting a 1200 MW coal-fired power plant with high-temperature reactor-pebblebed modules(HTR-PM)resulted in a 14.8%savings in levelized cost of electricity for coal-to-nuclear plants(RNU)compared to newly built nuclear power plants(GNU).In addition,this conversion preserves local employment opportunities and economic activities in regions with existing coal-fired power plants,delivering significant economic and social benefits.The n

关 键 词：煤电改核电 经济性分析 G4-ECONS 

分 类 号：TK09[动力工程及工程热物理]