2018 Annual Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 301-1 Reactor Physics, Utilization of Nuclear Data, Criticality Safety

[2F06-09] Criticality Safety

Tue. Mar 27, 2018 10:50 AM - 11:55 AM Room F (U2-211 -U2 Building)

Chair: Yasushi Nauchi (CRIEPI)

11:35 AM - 11:50 AM

[2F09] Radiation Dose by Super Critical Condition of Fuel Debris in Water

*Kodai Fukuda1, Tuya Delgeraikhan2, Toru Obara2, Jun Nishiyama2 (1. Graduate major in Nuclear Engineering, Tokyo Institute of Technology, 2. Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology)

Keywords:Criticality Safety, Criticality Accident, Fuel Debris, Fukushima Daiichi NPS Decommissioning

In this work, the characteristics of super critical behavior in coupled fuel debris system are obtained by using multi-region integral kinetic code MIK and radiation transport code PHITS. Concretely, kinetic characteristics, released energy and radiation dose as the result of criticality accident are obtained in the air-water coupled fuel debris system.