System Study: High-Pressure Core Spray 1998-2014

Technical Report · Tue Dec 01 00:00:00 EST 2015

DOI:https://doi.org/10.2172/1261235· OSTI ID:1261235

Schroeder, John Alton ^[1]

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1. Idaho National Lab. (INL), Idaho Falls, ID (United States). Risk Assessment and Management Services Dept.

This report presents an unreliability evaluation of the high-pressure core spray (HPCS) at eight U.S. commercial boiling water reactors. Demand, run hours, and failure data from fiscal year 1998 through 2014 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 HPCS results.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE; US Nuclear Regulatory Commission (NRC)
• DOE Contract Number: AC07-05ID14517; NRC-HQ-14-D-0018
• OSTI ID: 1261235
• Report Number(s): INL/EXT-16-37929; TRN: US1601579
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
PRESSURE RANGE MEGA PA 01-10
BWR TYPE REACTORS
CORE SPRAY SYSTEMS
DEMAND
EVALUATION
FAILURES
RELIABILITY
REGRESSION ANALYSIS