Using probabilistic risk assessment to rank importance of aging on nuclear power plant components

Conference · Mon Jul 01 00:00:00 EDT 1985

OSTI ID:5336616

Leverenz, F L; Davis, T C; Pelto, P J

A method is developed and applied for determining the potential risk significance of aging effects on nuclear power plant components. The applications use average component unavailability equations currently employed in PRAs to calculate the risk aging sensitivity. The risk aging sensitivity measure addresses the risk change as of function of the rate of change of the components' failure rates with respect to time. The results identify the component types that exhibit the most potential for risk changes due to aging. This study provides guidance in selection of components for further study and prioritization of resources.

• Research Organization: Pacific Northwest Labs., Richland, WA (USA); Battelle Columbus Labs., OH (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5336616
• Report Number(s): PNL-SA-12892; CONF-850713-9; ON: TI85017920
• Resource Relation: Conference: International conference on nuclear power plant aging, availability factor and reliability analysis, San Diego, CA, USA, 7 Jul 1985
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
NUCLEAR POWER PLANTS
RISK ASSESSMENT
REACTOR COMPONENTS
AGING
PROBABILISTIC ESTIMATION
NUCLEAR FACILITIES
POWER PLANTS
THERMAL POWER PLANTS
220900* - Nuclear Reactor Technology- Reactor Safety