Development and application of degradation modeling to define maintenance practices
Technical Report
·
OSTI ID:10160170
- Brookhaven National Lab., Upton, NY (United States)
- Science Applications International Corp., Dublin, OH (United States)
This report presents the development and application of component degradation modeling to analyze degradation effects on reliability and to identify aspects of maintenance practices that mitigate degradation and aging effects. Using continuous time Markov approaches, a component degradation model is discussed that includes information about degradation and maintenance. The component model commonly used in probabilistic risk assessments is a simple case of this general model. The parameters used in the general model have engineering interpretations and can be estimated using data and engineering experience. The generation of equations for specific models, the solution of these equations, and a methodology for estimating the needed parameters are all discussed. Applications in this report show how these models can be used to quantitatively assess the benefits that are expected from maintaining a component, the effects of different maintenance efficiencies, the merits of different maintenance policies, and the interaction of surveillance test intervals with maintenance practices.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering; Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 10160170
- Report Number(s):
- NUREG/CR--5967; BNL-NUREG--52353; ON: TI94013791
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100
210200
AGING
BWR TYPE REACTORS
MARKOV PROCESS
MATHEMATICAL MODELS
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
BOILING WATER COOLED
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
NONBOILING WATER COOLED
PREDICTION EQUATIONS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR MAINTENANCE
RELIABILITY
210100
210200
AGING
BWR TYPE REACTORS
MARKOV PROCESS
MATHEMATICAL MODELS
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
BOILING WATER COOLED
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
NONBOILING WATER COOLED
PREDICTION EQUATIONS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR MAINTENANCE
RELIABILITY