核电站停堆火灾PRA研究

Volume 2: Plant Systems, Structures, Components, and Materials; Risk Assessments and Management Pub Date : 2018-07-22 DOI:10.1115/ICONE26-81272

Meiru Liu, Q. Zhao, Wei Deng, Jinyan Du, Lin Sun

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引用次数: 0

摘要

火灾概率风险评估(PRA)是核电厂火灾安全分析的主要方法之一。目前，火灾PRA在大功率工况下的研究已经得到了广泛的研究，而在低功率停机工况(LPSD)下的研究还很有限。因此，本文以中国东部沿海的第二代核电厂为研究对象，分析方法基于NUREG/CR-7114报告中最新的LPSD火灾PRA理论。本文结合LPSD的实际情况，对火灾PRA的启动事件和着火频率进行了研究，建立了LPSD火灾PRA模型，最终得到了火灾造成核心损害的定量风险结果。根据该LPSD火灾PRA的结果，找出了火灾风险显著源和火灾风险弱点，并提出了改进建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Study on Shutdown Fire PRA for Nuclear Power Plant

Fire Probabilistic Risk Assessment (PRA) is one of the main methods of fire safety analysis for nuclear power plants (NPPs). At present, the fire PRA under the at-power condition has been widely studied, while the research on the low power and shutdown condition (LPSD) is quite limited. Therefore, in this paper, a second generation NPP on the east coast of China is taken as the research target, and the analysis methods are based on the latest LPSD fire PRA theory in report NUREG/CR-7114. This paper studies the initiating events and ignition frequencies of fire PRA considering the real conditions in LPSD, and established LPSD Fire PRA model, finally obtained the quantitative risk result of the core damage caused by the fire According to the results of this LPSD fire PRA, the fire risk-significant sources and fire risk weakness are found out and the improvement suggestions have been promoted.

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来源期刊

Volume 2: Plant Systems, Structures, Components, and Materials; Risk Assessments and Management

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