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)

11:05 AM - 11:20 AM

[2F07] Criticality safety analysis in falling down of fuel debris in water

*Takeshi Muramoto1, Jun Nishiyama2, Toru Obara2 (1. School of Environment and Society Transdisciplinary Science and Engineering Nuclear engineering Tokyo Institute of Technology, 2. Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology)

Keywords:Fukushima Diichi Nuclear Power Plant, Decommissioning, Fuel debris, Moving Particle Semi-Implicit Method, Criticality safety

In this study, criticality safety analysis reflecting the accumulation process of fuel debris in water was carried out by combining the Moving Particle Semi-implisit (MPS) method which is one of the computional fluid dynamics and criliticality safety calculation.