Review of the Shoreham Nuclear Power Station Probabilistic Risk Assessment: internal events and core damage frequency
A review of the Probabilistic Risk Assessment of the Shoreham Nuclear Power Station was conducted with the broad objective of evaluating its risks in relation to those identified in the Reactor Safety Study (WASH-1400). The scope of the review was limited to the ''front end'' part, i.e., to the evaluation of the frequencies of states in which core damage may occur. Furthermore, the review considered only internally generated accidents, consistent with the scope of the PRA. The review included an assessment of the assumptions and methods used in the Shoreham study. It also encompassed a reevaluation of the main results within the scope and general methodological framework of the Shoreham PRA, including both qualitative and quantitative analyses of accident initiators, data bases, and accident sequences which result in initiation of core damage. Specific comparisons are given between the Shoreham study, the results of the present review, and the WASH-1400 BWR, for the core damage frequency. The effect of modeling uncertainties was considered by a limited sensitivity study so as to show how the results would change if other assumptions were made. This review provides an independently assessed point value estimate of core damage frequency and describes the major contributors, by frontline systems and by accident sequences. 17 figs., 81 tabs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6474240
- Report Number(s):
- NUREG/CR-4050; BNL-NUREG-51836; ON: TI86004259
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
REACTOR ACCIDENTS
RISK ASSESSMENT
SHOREHAM REACTOR
REACTOR SAFETY
NUCLEAR POWER PLANTS
PROBABILITY
SENSITIVITY ANALYSIS
ACCIDENTS
BWR TYPE REACTORS
ENRICHED URANIUM REACTORS
NUCLEAR FACILITIES
POWER PLANTS
POWER REACTORS
REACTORS
SAFETY
THERMAL POWER PLANTS
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety