双区氯盐快堆的增殖及嬗变性能分析

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英文篇名：Analysis of Breeding and Transmutation Performance for a Double-Zone Chloride Salt Fast Reactor 作者：彭一鹏 ; 奚坤 ; 潘登 ; 朱帆 英文作者：Peng Yipeng;Xi Kun;Pan Deng;Zhu Fan;Research Institute of Nuclear Power Operation;Shanghai Institute of Applied Physics, Chinese Academy of Sciences; 关键词：氯盐快堆 ; 钍铀燃料循环 ; 增殖 ; 嬗变 英文关键词：MCFR;;thorium uranium fuel cycle;;breeding;;transmutation 中文刊名：核安全 英文刊名：Nuclear Safety 机构：核动力运行研究所;中国科学院上海应用物理研究所; 出版日期：2019-04-30 出版单位：核安全 年：2019 期：02 语种：中文; 页：42-48+88 页数：8 CN：11-5145/TL ISSN：1672-5360 分类号：TL433

摘要

基于熔盐嬗变堆(Molten Salt Actinide Recycler and Transmuter,简称MOSART)堆芯结构对氯盐快堆(Molten Chloride Salt Fast Reactor,简称MCFR)进行了优化,分析了熔盐成分和后处理方式的影响,使其燃耗性能得到明显的提升,但是相比熔盐快堆(Molten Salt Fast Reactor,简称MSFR)的增殖及嬗变性能仍有一定差距。基于在线连续添料与后处理方式,采用SCALE6.1程序和熔盐堆在线添料和后处理程序(Molten Salt Reactor Reprocessing Sequence,简称MSR-RS)分析了堆芯结构、~(37)Cl富集度对增殖比(Breeding Ratio,简称BR)、核素吸收率、燃耗等方面的影响,提出了双区氯盐快堆的设计,进一步提升了增殖嬗变性能和钍基燃料的利用率,倍增时间缩短到20年左右,超铀核素(Transuranics,简称TRU)嬗变率达到68%左右。
        Based on the core structure of molten salt actinide recycler and transmuter(MOSART), molten chloride salt Fast reactor(MCFR)was optimized. With the assistance of the analysis of the molten salt composition and reprocessing method, the burnup performance of MCFR improves significantly, although a gap still exists compared with the breeding and transmutation performance of the molten salt fast reactor(MSFR).Based on online continuous reprocessing, this study analyzes the influence of the core structure,~(37)Cl enrichment to Breeding Ratio(BR), nuclide absorption rate, and burnup performance by using SCALE6.1 and Molten Salt Reactor Reprocessing Sequence(MSR-RS). Finally, this study proposes the design of the doublezone MCFR, which will further improve the breeding and transmutation performance and the thorium-based fuel utilization rate. The results show that it could shorten the doubling time to about 20 years, and increase the Transuranics(TRU)rate to approximately 68%.

引文

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