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.
Revised: May 9, 2016 |
Published: November 1, 2013
Citation
Unwin S.D., K.I. Johnson, W.J. Ivans, and P.P. Lowry. 2013.A PROPOSED METHOD FOR ESTIMATING FAILURE RATES OF DEGRADED PASSIVE COMPONENTS IN THE NRC SIGNIFICANCE DETERMINATION PROCESS.Transactions of the American Nuclear Society 109, no. 1:2049-2050.PNNL-SA-99179.