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Accession Number DE14-1129942
Title Enhanced Component Performance Study: Turbine-Driven Pumps, 1998-2012.
Publication Date Oct 2013
Media Count 53p
Personal Author T. E. Wierman
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 fiscal year 1998 through 2012 for the component reliability as reported in the Equipment Performance and Information Exchange (EPIX). The TDP failure modes considered are failure to start, failure to run less than or equal to 1 hour, failure to run more than 1 hour, and (for normally running systems) failure to run. 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 active period. No statistically significant increasing trends were identified in the TDP results. Statistically significant decreasing trends were identified for TDP run hours per reactor critical year and start demands.
Keywords Control equipment
Nuclear power plants
Performance evaluation
Reactor components
Turbine driven pumps(TDPs)
Turbine pumps

Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77H - Reactor Engineering & Nuclear Power Plants
Corporate Author Idaho National Laboratory, Idaho Falls, ID. Risk Assessment and Management Services Department.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1422
Contract Number N/A

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