2021 Annual Meeting

Presentation information

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.)

3:15 PM - 3:30 PM

[2A11] The evaluation of the material distribution in the solidified metal after molten metal spreading

*Ryo Yokoyama1, Shunichi Suzuki1, Masahiro Kondo2, Masaru Harada3, Koji Okamoto1 (1. UTokyo, 2. AIST, 3. TEPCO)

Keywords:Severe accident, Corium spreading, Melting-Solidification, Stratification, Fuel debris

It is extremely important to know where U, Zr, SUS, etc. are distributed in the fuel debris when considering cutting jig selection, aerosol removal control during cutting, and recriticality control. In this study, a molten metal spreading experiment was carried out using two types of metals with different compositions to evaluate the distribution of the metal in the solidified metal.