MCCI Simulation Comparison Between MELCOR and CORQUENCH
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
C6-2 Experimental Debris Bed Cooling

Kevin Robb (University of Wisconsin)
Michael Corradini (University of Wisconsin)


This paper presents a comparison between the MELCOR and CORQUENCH codes in modeling the progression of a reactor scale ex-vessel core melt. This study investigates the impact of advanced modeling options on the progression of molten corium-concrete interactions (MCCI). Two cooling phenomena, water ingression and melt eruptions, and the crust anchoring phenomenon were shown to largely impact the accident progression. Recommendations are made concerning updating CONRCON-Mod3 within MELCOR and future research activities

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