空间核反应堆冷却剂热物性比较分析  

Comparative Analysis of Thermophysical Properties of Space Reactor Coolant

作　　者：刘祥[1] 郝祖龙[1] 牛风雷[1] LIU Xiang;HAO Zulong;NIU Fenglei(Beijing Key Laboratory of Passive Nuclear Safety Technology,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学非能动核能安全技术北京市重点实验室,北京102206

出　　处：《实验室研究与探索》2021年第5期41-44,242,共5页Research and Exploration In Laboratory

基　　金：国家重点研发计划资助项目(2018YFB1900602)。

摘　　要：冷却剂是空间核反应堆(空间堆)的重要材料,选择合理、高效的冷却剂对于空间核反应堆的安全运行有重要意义。通过对空间堆常用冷却剂工质钠、钾、锂、钠钾合金、氦气等进行对比分析,得出不同冷却剂工质在密度、比定压热容、热导率、黏度等热物性参数下的差异。结合反应堆特点及冷却剂性质给出应用不同冷却方式堆型的冷却剂推荐,对于空间核反应堆的设计尤其是堆冷却剂的选取有一定参考价值。Coolant is an important material of space nuclear reactor.It is of great significance to select reasonable and efficient coolant for the safe operation of space nuclear reactor.Through the centralized comparison and analysis of common space reactor coolant,such as sodium,potassium,lithium,sodium and potassium alloy,helium,etc.,we can know the differences of their thermal physical properties,which contain density,specific capacity,thermal conductivity,viscosity,etc.Besides,there are advices of the selection of coolant under different situation based on the characteristics of the reactor and the properties of the coolant.This paper isof value of reference for the design of space nuclear reactors,especially for the selection of coolant.

关 键 词：空间堆 冷却剂 热物性 

分 类 号：TL343[核科学技术—核技术及应用]