Abstract
The purpose of this study is to analyze the methodologies and applications of various techniques for performing a System Unavailability Monitoring Study. This study includes the development, analysis, and evaluation of some innovative techniques in establishing system unavailability target and trend indicators. The analysis was performed for the Emergency Feedwater System (EFS) of a nuclear power plant. System models, industry-average component unavailabilities, and plant-specific component unavailabilities were used to calculate both the target unavailability and the actual unavailability of the system. This provided information on the marginal risk, reliability, unavailability, and system performance indicators for a system unavailability monitoring program. Some important enhancements contributed by this study include the establishment of unavailability targets and trend indicators, results for evaluation of overall system performance, means for comparisons of various methods of analysis, and identification of areas where changes, if any, can be implemented and the associated marginal change in the system performance and plant risk can be determined.
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© 1989 Plenum Press, New York
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Sharirli, M. (1989). System Unavailability Monitoring Study. In: Bonin, J.J., Stevenson, D.E. (eds) Risk Assessment in Setting National Priorities. Advances in Risk Analysis, vol 7. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5682-0_40
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DOI: https://doi.org/10.1007/978-1-4684-5682-0_40
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-5684-4
Online ISBN: 978-1-4684-5682-0
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