在非能动安全功能可靠性方法(RMPS)框架下,对某型核动力装置非能动余热排出系统原理性试验系统的热工水力可靠性(TH-R)进行评估,并对影响系统可靠性的不确定性参数进行敏感性分析。相关结论有助于从可靠性角度增强对该非能动余热排出系统热工水力过程不确定性的认识,可用于指导系统的设计优化及运行管理。 Under the framework of the passive safety functional reliability method (RMPS), the thermal hydraulic reliability (TH-R) of the principle test system of passive residual heat removal system of a nuclear power plant is evaluated, and the influence of the reliability of the system Uncertainty parameters for sensitivity analysis. The relevant conclusions help to enhance the understanding of the uncertainty of thermal-hydraulics processes for the passive residual heat removal system from the perspective of reliability and can be used to guide the design and operation optimization of the system.