An Estimate of the Crust Thickness on the Surface of a Thermally Convecting Liquid-Metal Pool

A semiempirical correlation for an estimate of crust thickness in a molten pool is presented and validated against published experimental data. The proposed correlation between the dimensionless crust thickness and the Biot and the Prandtl numbers has been developed as δ̅ * = 14.49Bi·Pr -0.074 . A s...

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Bibliographic Details
Published inNuclear technology Vol. 138; no. 1; pp. 90 - 92
Main Authors Gubaidullin, Askar A., Sehgal, Bal Raj
Format Journal Article
LanguageEnglish
Published La Grange Park, IL Taylor & Francis 01.04.2002
American Nuclear Society
Subjects
Applied sciences
CORIUM
Correlation methods
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Heat convection
Heat resistance
Installations for energy generation and conversion: thermal and electrical energy
Light water reactors
LIQUID METALS
PONDS
Prandtl number
REACTOR ACCIDENTS
SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
SURFACES
THICKNESS
WATER COOLED REACTORS
WATER MODERATED REACTORS
Thickness
Core meltdown
Crust
Liquid metal
Accident
Thermal resistance
Cooling system
Reactor core
Nuclear reactor
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Summary:A semiempirical correlation for an estimate of crust thickness in a molten pool is presented and validated against published experimental data. The proposed correlation between the dimensionless crust thickness and the Biot and the Prandtl numbers has been developed as δ̅ * = 14.49Bi·Pr -0.074 . A scaling methodology is discussed to analyze the thermal resistance of the crust. The results are of interest for the corium melt coolability in a postulated severe accident scenario in a light water reactor.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0029-5450
1943-7471
DOI:10.13182/NT02-A3280