以美国10 MW熔盐实验堆(MSRE)为研究对象,设计空气冷却和水冷却2种非能动余热排出系统。通过建立相应的数学模型,采用C++语言编程,分别对系统的主要特性进行研究,并对2种系统的运行特性进行比较分析。结果表明,虽然空气冷却和水冷却均能满足系统的排热要求,并能形成稳定的自然循环,但从长期冷却性能方面看,空气冷却方案的综合性能更好。 Taking the US 10 MW molten salt reactor (MSRE) as the research object, two types of passive residual heat removal systems, air-cooled and water-cooled, were designed. Through the establishment of the corresponding mathematical model, the use of C + + language programming, the main characteristics of the system were studied, and the operating characteristics of two systems were compared. The results show that although both air cooling and water cooling can satisfy the heat rejection requirements of the system and form a stable natural circulation, the overall performance of the air cooling solution is better in terms of long-term cooling performance.