Session information

Oral presentation

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

[1A01-06] Fukushima Daiichi NPS Accident

Wed. Mar 17, 2021 10:15 AM - 12:00 PM Room A (Zoom room 1)

Chair: Hotta Akitoshi (NRA)

10:15 AM - 10:30 AM

[1A01] Estimation of the In-Depth Debris Status of Fukushima Unit-2 and Unit-3 with Multi-Physics Modeling

(6)Overview and Preliminary Criticality Evaluation of the Unit-3 Pedestal Debris

*Akifumi Yamaji¹, Kazuma Kishimoto¹, Xin Li¹, Masahiro Furuya¹, Ikken Sato³, Hiroshi Madokoro³, Yuji Ohishi² (1. Waseda Univ., 2. Osaka Univ., 3. JAEA)

10:30 AM - 10:45 AM

[1A02] Estimation of the In-Depth Debris Status of Fukushima Unit-2 and Unit-3 with Multi-Physics Modeling

(7)Preliminary evaluation of debris relocation and interaction with pedestal structures in Fukushima Unit-3 with MPS method

*Xin Li¹, Akifumi Yamaji¹, Ikken Sato², Masahiro Furuya¹, Hiroshi Madokoro², Hirofumi Fukai¹, Yuji Ohishi³ (1. Waseda Univ., 2. JAEA, 3. Osaka Univ.)

10:45 AM - 11:00 AM

[1A03] Estimation of the In-Depth Debris Status of Fukushima Unit-2 and Unit-3 with Multi-Physics Modeling

(8)Specific heat of Fe-B molten alloy

*Yuji Ohishi¹, Kiu Tanaka¹, Yifan Sun¹, Hiroaki Muta¹ (1. Osaka Univ.)

11:00 AM - 11:15 AM

[1A04] Investigation of Accident Scenario and Fission Products Behaviors in Fukushima Daiichi Nuclear Power Plant using SAMPSON code

(1)Summary of the Accident Scenario Investigation using SAMPSON code

*Kenichi Tezuka¹, Chiaki Kino¹, Nobuyoshi Tsuzuki¹ (1. IAE)

11:15 AM - 11:30 AM

[1A05] Investigation of Accident Scenario and Fission Products Behaviors in Fukushima Daiichi Nuclear Power Plant using SAMPSON code

Estimation of FP behaviors using SAMPSON code

*Chiaki Kino¹, Kenichi Tezuka¹, Nobuyoshi Tsuzuki¹ (1. IAE)

11:30 AM - 11:45 AM

[1A06] Temperature change due to radiative cooling under the fuel rod exposure in Fuku-Ichi No.1 Reactor

Recursive calculation of temperature using a simplified 3-D(2)

*Kiyoshi Yoneyama¹, Kazuo Watanabe² (1. H.O.Yoneyama, 2. WNR-Cx Watanabe Lab.)

Time reserved for Chair (11:45 AM - 12:00 PM)

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