2017 Fall Meeting

Presentation information

Oral presentation

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

[2G14-18] Criticality Control Technique Development 1

Thu. Sep 14, 2017 3:50 PM - 5:10 PM Room G (C213 - C Block)

Chair:Kenya Suyama (JAEA)

4:05 PM - 4:20 PM

[2G15] Study on container capacity limitations of removed fuel debris in defueling Fukushima Daiichi nuclear power station

(2)Criticality effect of deposition angle of fuel debris leaked from a container during defueling work

*Toru Morikawa1, Kei Yoshioka1, Naoyuki Takaki1, Hiroki Takezawa1, Isamu Sato1 (1. Tokyo City University)

Keywords:Fukushima Daiichi Nuclear Power Station, Nuclear reactor physics, Fuel debris, Container capacity limitations, Criticality safety

回収作業中に燃料デブリが回収容器から落下して、すでにデブリが蓄積している原子炉圧力容器(RPV)下部等へ円錐状に堆積した場合を想定し、円錐の堆積角度と臨界性の関係を定量的に評価した。