2021 Annual Meeting

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Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2A09-11] Severe Accident 2

Thu. Mar 18, 2021 2:45 PM - 3:40 PM Room A (Zoom room 1)

Chair: Yasunori Yamamoto (Hokkaido Univ.)

3:00 PM - 3:15 PM

[2A10] Heat Transfer and Thermal hydraulics Characteristics of Molten Fuel Pools in the Lower Head

*Akira Mikami1, Marco Pellegrini1, Ryo Yokoyama1, Koji Okamoto1 (1. UTokyo)

Keywords:Severe Accident, Lower head of RPV, Molten corium, CFD

It is important to analyze the thermal hydraulics of the molten fuel pool for the analysis of lower head failure in severe accidents. In this study, the temperature and velocity distributions in the molten fuel pool and the heat flux on the wall of the RPV were investigated by simulating the BALI Experiment.