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Natural Convection in a Stable Multi Layer Melt Pool with Volumetric Heat Generation
KTH, Superseded Departments, Energy Technology. (Kärnkraftssäkerhet)
2004 (English)In: Proceeding of the 2004 international congress on advances in nuclear power plants, ICAPP'04, American Nuclear Society, 2004, 906-916 p.Conference paper (Refereed)
Abstract [en]

This paper describes the results obtained from several sets of experiments, performed over several years in the SIMECO facility a the NPS Division, KTH on natural convection in multi-layered liquid pools with volumetric heat generation in one or more layers. The safety issue, to which these experiments are directed, is that of the thermal loading on the reactor pressure vessel (RPV) wall due to corium melt pool convection in the lower head. Multi layer pools are considered due to the observations made in the RASPLAV (Asmolov et al., 1998) and the MASCA (Asmolov et al.,2003) experimental programs on convection of prototypic material (UO{sub 2}+ZrO{sub 2}+ZR+Fe) melt pools. The SIMECO is a slice facility of 1/8. scale and the corium melt simulants employed have been water, salt water, paraffin and molten salt. Cerrobend was employed as simulant for the metal layer. The implications of the experimental results on the accident management strategy of in-vessel retention, practiced for the Loviisa VVER-440, the Westinghouse's AP-600, AP- 1000, the Framatome's BWR-1000 and KEPCO's Advanced PWR-1400 reactors are discussed.

Place, publisher, year, edition, pages
American Nuclear Society, 2004. 906-916 p.
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-53585ScopusID: 2-s2.0-14844323747ISBN: 0-89448-680-2OAI: diva2:470381
the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04. Pittsburgh, PA. 13 June 2004 - 17 June 2004
QC 20120103Available from: 2011-12-28 Created: 2011-12-28 Last updated: 2012-01-03Bibliographically approved

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