Lower head integrity under steam explosion loads
| Autor: | S. Angelini, T. Salmassi, T.G. Theofanous, Walter W. Yuen, X. Chen, James J. Sienicki, K. Freeman |
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| Rok vydání: | 1999 |
| Předmět: |
Nuclear and High Energy Physics
Engineering business.industry Mechanical Engineering Pressurized water reactor Accident analysis law.invention Fragility Nuclear Energy and Engineering Accident management law Dynamic loading Forensic engineering Head (vessel) General Materials Science Safety Risk Reliability and Quality business Waste Management and Disposal Reactor pressure vessel Steam explosion |
| Zdroj: | Nuclear Engineering and Design. 189:7-57 |
| ISSN: | 0029-5493 |
| DOI: | 10.1016/s0029-5493(99)00028-x |
| Popis: | Lower head integrity under steam explosion loads in an AP600-like reactor design is considered. The assessment is the second part of an evaluation of the in-vessel retention idea as a severe accident management concept, the first part (DOE:ID-10460) dealing with thermal loads. The assessment is conducted in terms of the risk oriented accident analysis methodology (ROAAM), and includes the comprehensive evaluation of all relevant severe accident scenarios, melt conditions and timing of release from the core region, fully three-dimensional mixing and explosion wave dynamics, and lower head fragility under local, dynamic loading. All of these factors are brought together in a ROAAM probabilistic framework to evaluate failure likelihood. The conclusion is that failure is 'physically unreasonable'. © 1999 Elsevier Science S.A. All rights reserved. |
| Databáze: | OpenAIRE |
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