2016 Fall Meeting

Presentation information

Oral Presentation

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

[2H14-18] Criticality Management 1

Thu. Sep 8, 2016 3:50 PM - 5:10 PM Room H (Kumume City Plaza - Studio 3)

Chair: Jun Nishiyama (Tokyo Tech)

3:50 PM - 4:05 PM

[2H14] Criticality control technique development for Fukushima Daiichi fuel debris

(19)policy of critilcality control

*Makoto Nakano1,2, Yasuhiro Harada1,2, Yamato Hayashi1,3, Hiromi Maruyama1,4 (1.International Research Institute for Nuclear Decommissioning, 2.Mitsubishi Heavy Industries, LTD., 3.Toshiba Corporation Energy Systems & Solutions Company, 4.Hitachi-GE Nuclear Energy,Ltd.)

Keywords:Fukushima NPP SA, molten nuclear fuel, fuel debris, criticality safety, neutron absorber

We summarized the criticality risk considering fuel debris retrieval method at Fukushima NPP. We suggest the reasonable criticality control method using MS(Preventing System) and MS(Mitigation System) system while the nuclear fuel debris retrieval work at Fukushima NOO.