NUREG-1150 risk assessment methodology and results
Conference
·
OSTI ID:6345510
NUREG-1150 constitutes a full-scope reassessment of the risks to the public from several light water reactor plants with various containment types. Emphasis has been placed on determining the magnitude and character of the uncertainties, rather than focusing upon a point estimate. The risk-reduction potential of proposed plant modifications (backfits and procedural changes) has also been studied, and their costs and benefits have been evaluated. It has been found that the risks from internal events are generally lower than previously evaluated in the Reactor Safety Study (RSS). However, certain unresolved phenomenological issues cause the tops of the uncertainty bands to appear at levels that are comparable to or higher than the RSS point estimates. The issues that are important vary from plant to plant. Most of the postulated plant modifications do not appear to be cost-effective, although a few procedural changes are possible exceptions. Several reviews of this work are in progress, and a second iteration is being performed to include external events, incorporate new technical information, and address comments.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); Safety and Reliability Optimization Services, Knoxville, TN (USA); Technadyne Engineering Consultants, Inc., Albuquerque, NM (USA); Nuclear Regulatory Commission, Washington, DC (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6345510
- Report Number(s):
- SAND-86-2838C; CONF-870820-6; ON: DE87012980
- Country of Publication:
- United States
- Language:
- English
Similar Records
Risk and risk reduction results for Surry, obtained in support of NUREG-1150
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NUREG-1150 risk assessment methodology
Conference
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:7071920
Evaluation of severe accident risks and the potential for risk reduction: Surry Power Station, Unit 1: Draft report for comment
Technical Report
·
Sat Jan 31 23:00:00 EST 1987
·
OSTI ID:6658846
NUREG-1150 risk assessment methodology
Conference
·
Wed Dec 31 23:00:00 EST 1986
· Trans. Am. Nucl. Soc.; (United States)
·
OSTI ID:5716611
Related Subjects
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