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The ASME PRA Standard and the HCPRA Update

机译:ASME PRA标准和HCPRA更新

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摘要

A major revision of the Hope Creek Generation Station (HCGS) Probabilistic Risk Assessment (PRA) has been performed to provide the following: (1) An update of the model consistent with the ASME PRA Standard Capability Category II (2) Incorporation of changes based on the NEI PRA Peer Review (3) Inclusion of the impact of a 20% Extended Power Uprate (EPU) (4) Modification of the fire and seismic PRA and integration of them with the internal events analysis (5) Performance of plant specific MAAP 4 thermal hydraulic analyses to support the updated success criteria, accident sequence timing, and radionuclide release magnitude. Each of these changes by itself would be a major undertaking that could significantly alter the risk profile of the plant. This paper provides a summary of the changes and their impact on the risk profile.
机译:对Hope Creek发电站(HCGS)概率风险评估(PRA)进行了重大修订,以提供以下内容:(1)与ASME PRA标准能力类别II相一致的模型更新(2)结合了基于变更的内容NEI PRA同行评审(3)包括20%扩展功率提升(EPU)的影响(4)修改火灾和地震PRA并将其与内部事件分析集成(5)特定于工厂的MAAP性能4次热力水力分析,以支持更新的成功标准,事故顺序计时和放射性核素释放量。这些变化本身都是一项重大任务,可能会大大改变工厂的风险状况。本文总结了这些变化及其对风险状况的影响。

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