液态熔盐热堆燃料管理方法研究与分析  

Study and Analysis on Fuel Management Method of Liquid Molten Salt Thermal Reactor

作　　者：贾国斌 戴叶[1,2] 伍建辉 陈金根[1,2,3] 顾国祥 蔡翔舟 JIA Guobin;DAI Ye;WU Jianhui;CHEN Jingen;GU Guoxiang;CAI Xiangzhou(Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;CAS Innovative Academies in TMSR Energy System,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院先进核能创新研究院,上海201800 [3]中国科学院大学,北京100049

出　　处：《原子能科学技术》2021年第3期464-473,共10页Atomic Energy Science and Technology

基　　金：中国科学院TMSR先导专项资助项目(XDA02010000);中国科学院前沿科学重点研究项目资助(QYZDY-SSW-JSC016);国家自然科学基金资助项目(11905285)。

摘　　要：为研究液态熔盐热堆的燃料管理性能,需解决复杂堆芯结构的均匀化、燃料的混合及在线后处理3个问题。本文基于确定论程序DRAGON5与DONJON5,开发了液态熔盐热堆的燃料管理程序LMSR,并进行了验证。使用LMSR对液态熔盐热堆进行计算与分析,结果显示使用235 U与238 U启堆,加入燃料为232 Th与233 U条件下,后处理提取重金属的效率至少需要90%。此外,为维持堆芯有效增殖因数在1.0~1.005之间,加入的燃料中233 U平均等效质量富集度在40%附近。In order to study the fuel management performance of liquid molten salt thermal reactor,there are three challenges needed to be solved that are homogenization of complex core structure,mixing of fuel salt and online fuel reprocessing.Based on DRAGON5 and DONJON5 codes,a liquid molten salt thermal reactor fuel management code LMSR was developed and verified.Liquid molten salt thermal reactor was calculated and analyzed by using LMSR.The results show that when 235 U and 238 U are used to start the reactor and 232 Th and 233 U are used as feeding fuel,the extraction efficiency of heavy metal is at least 90%.In addition,in order to maintain the core effective multiplication factor between 1.0-1.005,the average equivalent mass enrichment of 233 U in the feeding fuel is about 40%.

关 键 词：液态熔盐热堆 均匀化 LMSR程序 燃料管理 

分 类 号：TL426[核科学技术—核技术及应用]