华龙一号核电厂非失水事故PIRT表研究

对热工水力现象的认识是研究核电厂在事故工况下响应的前提,也是程序适用性验证的基础。文章针对华龙一号的电厂设计,梳理非失水事故的现象,并对涉及的现象进行识别,以及按这些现象对性能指标的影响进行重要度的等级划分,建立非失水事故的现象识别和分级表(PIRT),为非失水瞬态计算程序的验证提供基础。

Understanding of the thermal hydraulic phenomenon is the prerequisite for studying the responses of nuclear power plants(NNPs)during accidents and the basic of code the verification and validation.For the design of the Hualong One nuclear power plant,the thermal hydraulic phenomenon of non-LOCA accidents are analyzed and recognition,and these phenomenon are ranked according to the importance of their influences on the related criteria,which results in establishing the phenomenon identification and ranking table(PIRT),building the foundation of the verification and validation of non-LOCA transient simulation code.