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Title: System Study: Isolation Condenser 1998–2013

This report presents an unreliability evaluation of the isolation condenser (ISO) system at four U.S. boiling water reactors. 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 ISO results.
Authors:
 [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States). Risk Assessment and Management Services Dept.
Publication Date:
OSTI Identifier:
1261718
Report Number(s):
INL/EXT--15-34437
TRN: US1601592
DOE Contract Number:
AC07-05ID14517; NRC-HQ-14-D-0018
Resource Type:
Technical Report
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE; US Nuclear Regulatory Commission (NRC)
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ISOLATION CONDENSERS; BWR TYPE REACTORS; DEMAND; EVALUATION; FAILURES; RELIABILITY boiling water reactor; isolation condenser; operating experience; unreliability