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U.S. Department of Energy
Office of Scientific and Technical Information

PRAAGE: An interactive IBM-PC code for unreliability/aging analysis

Conference ·
OSTI ID:6158080

The more redundant a system is, the faster its unavailability increases with aging. Normally a highly redundant system has a small unavailability contribution, but aging may make it significant. This is due to the fact that, as assumed in this study, aging degradation drives up the failure rate of all redundant trains and causes a rapid loss in the effectiveness of the redundancy in reducing the unavailability. Thus aging, if allowed to cross trains, can be a significant contributor to unavailability. This conclusion demonstrates the usefulness of PRAAGE for interactive systems analysis. 3 refs., 1 fig., 1 tab.

Research Organization:
Brookhaven National Lab., Upton, NY (USA); Nuclear Regulatory Commission, Washington, DC (USA)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
6158080
Report Number(s):
BNL-NUREG-39923; CONF-871101-51; ON: DE87012124
Resource Relation:
California State Air Resources Board, Los Angeles, CA, USA, 15 Nov 1987
Country of Publication:
United States
Language:
English