[1O13-14] Estimation of Fukushima Daiichi Accident

[1O13] Estimation of the 1F3 Core Energy at the Time of the Major Core Slumping with Focuses on the D/W Pressure History

*Milly Yamasaki¹, Akifumi Yamaji¹ (1. Waseda Univ.)

Keywords:fukushiima daiichi unit3(1F3) , debris, thermal energy

For decommissioning the Fukushima Daiichi Unit 3, it is necessary to estimate the thermal energy of core until the time of the core collapse. It is conceivable that there were RPV leak to reproduse the increase of D/W pressure at the time of core slumping. The aim for this study is to estimate the thermal energy forcasing on the D/W pressure history, by using the sever accident progress estimation code (MELCOR-2.2).