非能动自然循环技术的发展与研究

非能动技术在核电工程领域越来越受重视，文章列举了非能动自然循环在核电系统中的应用，对其在运行过程中可能存在的问题进行了分析。介绍了非能动自然循环可靠性分析目前的数学研究方法，并简要总结了这些方法的优缺点。最后展望了非能动自然循环的发展方向。由于非能动自然循环存在失效的可能，在系统运行过程中应对非能动自然循环物理过程失效及其可靠性予以足够重视和积极研究；为了确保系统运行的安全性，系统运行过程中要能动与非能动相互结合，同时选择精确模型，完善非能动可靠性分析方法，准确实现理论计算与实验验证。

The Development and Study on Passive Natural Circulation

Passive natural circulation is getting more and more important in the field of nuclear power en- gineering. This article cited a passive natural circulation in the nuclear power system application, analyzed the potential problems during operation, described current mathematical research methods of the reliability of passive natural cycle analysis, briefly summarized the advantages and disadvantages of these methods, and finally got an outlook of the direction of passive natural circulation. Since the presence of passive natu- ral circulation may get failure, sufficient attention and active research should be paid in response to the physical process failure of the running passive natural circulation system and its reliability. To ensure sys- tem security during the operation, the operation process should combine active with non-dynamic; while selecting an accurate model, perfect passive reliability analysis methods to achieve accurate theoretical cal- culations and experimental verification.