[3C06-09] Various Decommissioning Technology

[3C09] Review fuel debris collection method from technical requirements defined by NDF

Consider feasibility

*Yosuke Yamashiki¹, haruo Morishige², Makito Watakabe², Yasufumi Kitamura², Haruki Morishige² (1. Kyoto University, 2. Fukushima Nuclear Accident Countermeasures Review Group)

Keywords:Fukushima accident countermeasure, fuel debris collection, technical requirement, criticality, confinement, storage container

Reactor Damage and Decommissioning Facilities Organization (NDF) established technical requirements consisting of the following nine items in selecting "Fuel debris removal method" in 2015. (1) PCV · Ensure structural integrity of the building (2) Maintenance of criticality (3) Maintenance of cooling function (4) Construction of confinement function (5) Reduction of exposure during work (6) Development of equipment and equipment for removing fuel debris (7) Construction of access route to fuel debris (8) System equipment * 2, Construction of areas (9) Securing occupational safety. In this post, we studied this 9 items mainly on the fuel debris ice construction method proposed from us.