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DOE OSTI · 3364334

Enhanced Component Performance Study: Turbine-Driven Pumps 1998-2024

Ma, Zhegang [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000229738557)·Zhang, Sai [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000236018873)
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Abstract

This report presents an enhanced performance evaluation of turbine driven pumps (TDPs) at U.S. commercial nuclear power plants. The data used in this study are based on the operating experience failure reports from calendar year 1998 through 2024 as reported in the Institute of Nuclear Power Operations (INPO) Industry Reporting and Information System (IRIS). The TDP failure modes considered for standby systems are fail to start (FTS), fail to run (FTR) for one hour of operation (FTR=1H), FTR after one hour of operation (FTR>1H), and for normally running systems FTS and FTR. An eight hour unreliability estimate is also calculated and trended. The component reliability estimates and the reliability data are trended for the most recent 10 year period while yearly estimates for reliability are provided for the entire study period. No increasing trends were identified for TDPs for the most recent 10 year period.

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22 GENERAL STUDIES OF NUCLEAR REACTORS42 ENGINEERING99 - GENERAL AND MISCELLANEOUSComponent PerformanceNuclear Power PlantTrending AnalysisTurbine-Driven Pumps

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Ma, Zhegang [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000229738557), Zhang, Sai [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000236018873). 2026-02-26. Enhanced Component Performance Study: Turbine-Driven Pumps 1998-2024. https://doi.org/10.2172/3364334

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