Approximate model for calculating overall heat transfer between overlying immiscible liquid layers with bubble-induced liquid entrainment
In the event a commercial power reactor is subjected to a Class 9 accident resulting in gross core melting and reactor pressure vessel penetration, it has been shown that the containment integrity may subsequently be threatened by steam overpressurization, combustible gas reactions, and basemat penetration. A major contributor to these events would be the interaction of molten core debris with the structural concrete. Modeling of core-concrete interactions involves many poorly understood and complicated heat transfer phenomena for which there exists a sparse data base. One of these phenomena, which has been shown to have significant impact upon code calculations of core-concrete interactions, is the rate of heat transfer between overlying immiscible layers of core oxides and molten metals whose interface is agitated by transverse gas flow. A mathematical model is developed to analyze this heat transfer.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7100357
- Report Number(s):
- BNL-NUREG-31763; CONF-820717-2; ON: DE82022047
- Resource Relation:
- Conference: PAHR information exchange conference, Karlsruhe, F.R. Germany, 28 Jul 1982
- Country of Publication:
- United States
- Language:
- English
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