Enhanced Component Performance Study: Turbine-Driven Pumps 1998–2018
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 2018 as reported in the Institute of Nuclear Power Operations (INPO) Consolidated Events Database (ICES). The TDP failure modes considered are failure to start (FTS), failure to run less than or equal to one hour (FTR≤1H), failure to run more than one hour (FTR>1H), and normally running systems FTS and failure to run (FTR). 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. A highly statistically significant decreasing trend was identified in the standby TDP unavailability estimates.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE; USNRC
- DOE Contract Number:
- AC07-05ID14517; NRC-HQ-60-14-D-0018
- OSTI ID:
- 1631736
- Report Number(s):
- INL/EXT-19-54613-Rev000; TRN: US2200772
- Country of Publication:
- United States
- Language:
- English
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