Aging Effects on Time-Dependent Nuclear Plant Unavailability with Changing Surveillance Interval
Plant availability may decrease due to the aging of unrepairable or hard to replace components. A methodology is described to investigate the feasibility of reducing the surveillance intervals of repairable components to offset such a reduction in plant availability. The methodology is illustrated using the 2-train residual heat removal system of a pressurized water reactor.
KeywordsNuclear Power Plant System Availability Pressurize Water Reactor Plant Availability Nuclear Regulatory Commission
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