熔盐反应堆辐射效应分析  

Analysis of Radioactive Effect in Molten Salt Reactor

作　　者：王丹[1] 王亚辉[2] 马宇 Wang Danl;Wang Yahui;Ma Yu(Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chcngdu, 610213, China;School of Encrgy Science and Engineering, Harbin Institute of Tcchnology, Harbin, 150001, China;Sino-Frcnch Institute of Nuclear Engineering and Technology, Sun Yat-scn University, Zhuhai, Guangdong, 519082, China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213 [2]哈尔滨工业大学,能源科学与工程学院,哈尔滨150001 [3]中山大学,中法核工程与技术学院,广东珠海519082

出　　处：《核动力工程》2018年第2期80-85,共6页Nuclear Power Engineering

基　　金：国家自然科学基金重点项目(51436009)

摘　　要：由于熔盐反应堆燃料熔盐的流动特性,堆芯内部物理过程呈现出强烈的耦合特性。基于有限元方法和离散坐标方法的耦合模拟,对熔盐反应堆内部的反应堆物理-热工水力-辐射传热过程进行了全耦合研究,着重分析了辐射效应对反应堆内部温度及流场的影响。数值模拟结果表明,虽然堆芯内部的辐射效应对于流动过程影响不大,但对反应堆内部的整体温度有明显的影响,尤其对堆芯出口位置影响明显。因此,在熔盐反应堆的设计及安全分析中,堆芯内部的辐射效应不能忽略。Due to the flow characteristics of molten salt in molten salt reactor （MSR）, the internal physical processes of this reactor show strongly coupling characteristic. This paper studied the coupled neutronics-thermo-hydrodynamic and radiative heat transfer processes in MSR by using finite element method and discrete-ordinate method. The influences of radiation effect on internal temperature and flow fields are analyzed particularly. Simulation results show that although the radiation process has little effect on the flow process, the influence of radiation process on overall temperature can be very obvious. Therefore, in the design and the safety analysis of MSR, the influence of radiation effect cannot be neglected.

关 键 词：熔盐堆 辐射传热 中子物理 热工水力 多物理场 

分 类 号：TL426[核科学技术—核技术及应用] TL32