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Insights from the FOREVER-Programme and the accompanying finite element calculations
KTH, Superseded Departments, Physics.
2004 (English)In: ATW. Internationale Zeitschrift für Kernenergie, ISSN 1431-5254, Vol. 49, no 5, 345-+ p.Article in journal (Refereed) Published
Abstract [en]

To obtain an improved understanding and knowledge of the melt pool convection thermal loads, the vessel creep, and vessel failure modes occurring during the late phase of a core melt down accident the FOREVER-experiments have been performed at the Royal Institute of Technology, Stockholm. These experiments simulated the behaviour of the lower head of the RPV under the thermal loads of a convecting melt pool with decay heating, and under the pressure loads that the vessel experiences in a depressurised vessel scenario. A Finite Element model was developed simulating melt pool convection and calculating the temperature field within the melt pool and within the vessel wall. After performing successful pre- and post-test calculations, a discussion about the lessons learned from the experiments and the analyses led to the idea of providing a vessel support and an external water-flooding device.

Place, publisher, year, edition, pages
2004. Vol. 49, no 5, 345-+ p.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-44964ISI: 000222281500012Scopus ID: 2-s2.0-2642587353OAI: oai:DiVA.org:kth-44964DiVA: diva2:453161
Note
QC 20111101Available from: 2011-11-01 Created: 2011-10-26 Last updated: 2017-12-08Bibliographically approved

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