System Study: Auxiliary Feedwater 1998???2013

[摘要] This report presents an unreliability evaluation of the auxiliary feedwater (AFW) system at 69 U.S. commercial nuclear power plants. Demand, run hours, and failure data from fiscal year 1998 through 2013 for selected components were obtained from the Institute of Nuclear Power Operations (INPO) Consolidated Events Database (ICES). The unreliability results are trended for the most recent 10-year period, while yearly estimates for system unreliability are provided for the entire active period. No statistically significant increasing or decreasing trends were identified in the AFW results.

[发布日期] 2014-12-31

[关键词] FEEDWATER;NUCLEAR POWER PLANTS;DEMAND;EVALUATION;FAILURES;RELIABILITY;AUXILIARY WATER SYSTEMS auxiliary feedwater;operating experience;pressurized water reactor;unreliability