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Title: A PROPOSED METHOD FOR ESTIMATING FAILURE RATES OF DEGRADED PASSIVE COMPONENTS IN THE NRC SIGNIFICANCE DETERMINATION PROCESS

Journal Article · · Transactions of the American Nuclear Society
OSTI ID:1130717

This paper outlines a methodology for estimation of the incremental core damage frequency associated with the degradation of passive components with a view to its application in the US Nuclear Regulatory Commission's significance determination process. The method involves use of simplified physics-based models of materials degradation and the probabilistic comparison of transient loads with deteriorating system capacities.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1130717
Report Number(s):
PNNL-SA-99179; 401001060
Journal Information:
Transactions of the American Nuclear Society, Vol. 109, Issue 1; ISSN 0003-018X
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English