Risk and risk reduction results for Surry, obtained in support of NUREG-1150
Conference
·
OSTI ID:7071920
The Severe Accident Risk Rebaselining/Risk Reduction Program has completed a rebaselining of the risks to the public from a particular pressurized water reactor with a subatmospheric containment (Surry, Unit 1). Emphasis was placed on determining the magnitude and character of the uncertainties, rather than focusing on a point estimate. The risk reduction potential of a set of proposed safety option backfits was also studied, and their costs and benefits were evaluated. It was found that the risks from internal events are generally lower than previously evaluated in the Reactor Safety Study (RSS). However, certain unresolved issues (such as direct containment heating) cause the top of the uncertainty band to appear at a level that is comparable with the RSS point estimate. None of the postulated safety options appears to be cost-effective for the Surry power plant.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); Safety and Reliability Optimization Services, Knoxville, TN (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7071920
- Report Number(s):
- SAND-86-2547C; CONF-8610135-20; ON: DE87002056
- Country of Publication:
- United States
- Language:
- English
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