40 kW热离子月面堆电源堆芯方案研究

Research on the Scheme for the Power Core of the 40 kW Thermionic Lunar Reactor

针对月球科研站的用电需求,笔者开展了电功率为40 kW、寿期为10年,以氢化钇为慢化剂的热离子月面堆电源堆芯方案的研究。对该型反应堆的温度效应、燃耗效应、慢化剂氢泄漏效应以及临界安全特性进行了分析研究。经综合分析和权衡研究,给出了经过优化的堆芯布置方案。计算给出了堆芯的临界参数、各种反应性效应、反应性平衡、特殊临界安全特性以及堆芯热工特性。结果表明:堆芯方案设计满足物理、热工的要求。

In view of the power demand of the lunar research station,the authors carry out research on the scheme of the power core of the thermionic lunar reactor with an electric power of 40 kW and a life span of 10 years that takes yttrium hydride as moderator.They analyze and study the temperature effect,fuel consumption effect,moderator hydrogen leakage effect and critical safety characteristics of this type of reactor,give an optimized scheme for core layout after comprehensive analysis and trade-off study,and after calculation,give the critical parameters,various reactivity effects,reactivity balance,special critical safety characteristics and thermal characteristics of the core.The results show that the core scheme design meets physical and thermal requirements.