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首页> 外文期刊>Transactions of the American nuclear society >Integrated Probabilistic Risk Assessment (I-PRA) Importance Ranking for Fire PRA of Nuclear Power Plants
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Integrated Probabilistic Risk Assessment (I-PRA) Importance Ranking for Fire PRA of Nuclear Power Plants

机译：核电厂火灾PRA的综合概率风险评估（I-PRA）重要性排名

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摘要

In the risk-informed, performance-based approach under the National Fire Protection Association (NFPA) 805 standard [1], Fire Probabilistic Risk Assessment (Fire PRA) is used to evaluate plant-specific fire-related risk and vulnerability. State-of-the-art methodologies, tools, and data for the current Fire PRA of Nuclear Power Plants (NPPs) are documented in NUREG/CR-6850 [2]. A main gap in this current Fire PRA methodology is the overestimation of risk due to the use of excessively conservative input parameters and assumptions [3]. Ensuring that Fire PRA is as realistic as possible allows proper fire-safety related decisions and better comparisons to be made between fire and other hazards with regard to their contributions to the overall plant risk. Fire risk is a considerable burden of concern to the nuclear utilities, contributing to between 35% to 98% of total plant Core Damage Frequency (CDF) [4].
机译：在美国国家消防协会（NFPA）805标准[1]的基于风险的基于绩效的方法中，使用火灾概率风险评估（Fire PRA）来评估特定于工厂的火灾相关风险和脆弱性。 NUREG / CR-6850 [2]中记录了当前核电站（NPPs）火灾PRA的最新方法，工具和数据。当前Fire PRA方法的一个主要缺陷是由于使用过分保守的输入参数和假设而导致的风险高估[3]。确保Fire PRA尽可能切合实际，可以做出与消防安全相关的适当决定，并就火灾和其他危害对工厂总体风险的贡献进行更好的比较。火灾隐患是核电公司的重大负担，占工厂核心损坏频率（CDF）的35％至98％[4]。

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  • 来源
    《Transactions of the American nuclear society》 |2019年第11期|997-1003|共7页
  • 作者

    Ha Bui; Tatsuya Sakurahara; Seyed Reihani; John Biersdorf; Zahra Mohaghegh;

  • 作者单位

    Socio-Technical Risk Analysis (SoTeRiA) Laboratory Department of Nuclear Plasma and Radiological Engineering University of Illinois Urbana-Champaign (UIUC) 104 S Wright St. Urbana IL 61801 USA UIUC SoTeRiA Industry Affiliates Program (SoTeRiA-IAP) Urbana IL USA;

    Idaho National Laboratory Idaho Falls ID 83415 USA;

    Socio-Technical Risk Analysis (SoTeRiA) Laboratory Department of Nuclear Plasma and Radiological Engineering University of Illinois Urbana-Champaign (UIUC) 104 S Wright St. Urbana IL 61801 USA UIUC SoTeRiA Industry Affiliates Program (SoTeRiA-IAP) Urbana IL USA UIUC Beckman Institute for Advanced Science and Technology Urbana IL USA;

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