强激光与粒子束2024，Vol.36Issue(3)：148-157,10.DOI:10.11884/HPLPB202436.230388
空间热离子反应堆燃料元件力学性能分析程序开发
Development of mechanical property analysis program for space thermionic fuel element
摘要
Abstract
To predict the safety performance of fuel elements during operation of a space thermionic reactor,this study developed a mechanical performance analysis program for fuel elements,and conducted high-precision simulation of stress,strain,and geometric deformation for the multi-layer cylindrical TOPAZ-Ⅱ thermionic fuel element.The program takes into account the irradiation swelling of nuclear fuel under high-temperature radiation environment,and analyzes the mechanical response of the fuel pellet-emitter after contact,thereby quickly and accurately solving the mechanical state of the fuel pellet and emitter,to provide accurate prediction of the performance during operation of the space thermionic reactor.The results indicate that in normal operating conditions,the fuel of a space thermionic reactor undergoes significant swelling effects,which causes deformation that can lead to potential safety hazards such as reduced thermal-electric conversion efficiency and component failure.关键词
空间堆/燃料元件/辐照肿胀/力学分析Key words
space reactor/fuel element/irradiation swelling/mechanical analysis分类
能源科技引用本文复制引用
杨文宇,柴翔,朱恩平,刘晓晶..空间热离子反应堆燃料元件力学性能分析程序开发[J].强激光与粒子束,2024,36(3):148-157,10.基金项目
国家重点研发计划项目(2020YFB1901900) （2020YFB1901900）
国家自然科学基金项目(12275175) （12275175）
上海市工业强基计划项目(GYQJ-2018-2-02) （GYQJ-2018-2-02）
上海市启明星计划项目(21QA1404200) （21QA1404200）
