TOPAZ-Ⅱ空间核反应堆电源始发事件分析  

Analysis of the Initiating Event of TOPAZ-II Space Nuclear Reactor Power System

作　　者：杨佳林 丁宏春 贺芳 张昊春[1] 赵宇兰 Yang Jialin;Ding Hongchun;He Fang;Zhang Haochun;Zhao Yulan(School of Energy Science and Engineering,Harbin Institute of Technology,Harbin,150001,China;Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001 [2]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

出　　处：《核动力工程》2024年第6期192-196,共5页Nuclear Power Engineering

摘　　要：为综合评价空间核反应堆的安全性,为其设计、运行提供技术支持,本研究基于概率安全分析(PSA)方法,以TOPAZ-Ⅱ空间核反应堆电源为研究对象,对其始发事件(IE)展开研究。通过运行经验反馈、失效模式及影响分析(FMEA)2种途径得到了涵盖TOPAZ-Ⅱ核反应堆电源所有任务阶段的IE清单,共计15个。进一步依据系统响应过程,将IE归为6组。研究表明,因设计特征、运行环境及任务阶段的独特性,空间核反应堆电源的IE与地面核动力设施相比存在显著差异。本研究确定的TOPAZ-Ⅱ空间核反应堆电源IE清单及其分组方法为空间核反应堆的PSA奠定了初步研究基础。To comprehensively evaluate the safety of space nuclear reactors and provide technical support for their design and operation,based on probabilistic safety assessment(PSA)method,this study takes TOPAZ-Ⅱspace nuclear reactor power system as the research object,and a study on its initiating events(IEs)is carried out.A list of 15 IEs covering all mission phases of the TOPAZ-Ⅱis obtained through two means:operational experience feedback and Failure Mode and Effects Analysis(FMEA).These IEs are further classified into 6 groups according to their system response process.Research has shown that due to the uniqueness of design features,operating environment,and mission phases,there are significant differences in the IE of space nuclear reactor power system compared to ground nuclear power facilities.The IE list and its grouping method determined for TOPAZ-Ⅱspace nuclear reactor power system in this study have laid the preliminary research foundation for the PSA of space nuclear reactors.

关 键 词：空间核反应堆 TOPAZ-Ⅱ 概率安全分析 始发事件(IE)分析 失效模式及影响分析 

分 类 号：TL364.5[核科学技术—核技术及应用]