Development of assessment method to evaluate the material relocation behavior in the core disruptive accident of FBR, 4; Discussion on the distance for fragmentation of molten core in sodium based on the results of a fundamental experiment using a molten alloy and water

Matsuba, Kenichi  ; Isozaki, Mikio; Kamiyama, Kenji  ; Tobita, Yoshiharu

In order to develop an evaluation method of the distance for fragmentation (debris formation) of molten core material discharged into the lower sodium plenum during core disruptive accidents in sodium-cooled fast reactors, the dependency of the distance for fragmentation on the discharge conditions was discussed based on the results of a fundamental experiment using a molten alloy and water.