Study of light water reactor containments under important severe accident conditions
The US Nuclear Regulatory Commission has sponsored studies to develop a ''LEAKAGE-BEFORE-FAILURE'' model for use in severe accident risk assessments to provide a means of accounting for significant containment leakage prior to reaching the containment threshold pressure. Six containment types have been studied (large dry, subatmospheric, ice condenser, Mark I, II, and III). Potential leak paths through major containment penetration assemblies were investigated and upper-bound estimates of leak areas established. These leak areas may result from increasing internal pressure and degradation of nonmetallic seal materials due to severe accident conditions. This paper describes the approach and summarizes the results and conclusions of this study.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA); Nuclear Regulatory Commission, Washington, DC (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5630475
- Report Number(s):
- BNL-NUREG-36339; CONF-850809-62; ON: TI85012505
- Resource Relation:
- Conference: 8. international conference on structural mechanics in reactor technology, Brussels, Belgium, 19 Aug 1985
- Country of Publication:
- United States
- Language:
- English
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