单节热离子型月面堆电源堆芯方案研究  

Study on Lunar Reactor Core Scheme with Singe-Cell Thermionic Fuel Element

作　　者：王征 孙征[1] 侯丞 赵守智[1] WANG Zheng;SUN Zheng;HOU Cheng;ZHAO Shouzhi(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《深空探测学报（中英文）》2024年第5期435-443,共9页Journal Of Deep Space Exploration

基　　金：国家重点研发计划项目(2023YFB3506704)。

摘　　要：核反应堆电源是月球科研站电力供应最重要选项之一。根据月球科研站的用电需求,给出了净电功率为40kWe,寿命为10a的单节热离子型月面核反应堆电源堆芯方案。由于单节热离子燃料元件既可以在地面完成燃料装载也可较为方便地在月面进行燃料装载,提出两种不同燃料装载模式下的堆芯方案。通过燃料分区装载对堆芯方案进行了径向功率分布的优化,并对堆芯的功率分布、温度效应、转鼓与安全棒价值、燃耗及氢泄漏效应、反应性平衡以及特殊临界安全问题进行了计算分析。结果表明,两种堆芯方案均能满足中子学设计及特殊临界安全的要求且各有特点。研究成果可为月面堆电源堆芯方案的选择以及工作流程的制定提供参考。The nuclear reactor power is one of the most important power supply options for the lunar research station.To meet the electricity demand of the lunar research station,a single-cell thermionic lunar power reactor core scheme with a net power of 40kWe and a lifetime of 10 years was presented.As the single-cell thermionic fuel element’s fuel loading can be completed either on the earth or relatively conveniently on the lunar surface,two core schemes were given respectively.The radial power distribution of the reactor core was optimized by fuel partition loading,and the power distribution,temperature effect,worth of bowl and safety rod,burnup and hydrogen leakage effect,reactivity balance and special critical safety problem of the core were calculated and analyzed.The results show that both of the core schemes can meet the requirements of neutronics and special critical safety,and have their own characteristics.This research results can provide reference for the selection of lunar power reactor core scheme and the formulation of workflow.

关 键 词：月球科研站 月面堆电源 单节热离子燃料元件 氢化钇 堆芯方案 

分 类 号：TL413[核科学技术—核技术及应用]