[2J09-13] Severe Accident 1

[2J09] Evaluation on Reactor Core Degradation and Relocation at Severe Accident

(1)MAAP5 analytical conditions of LOFT LP-FP-2 test

*Koji Nishida¹, Naoki Sano¹, Takayoshi Kusunoki¹, Michio Murase¹ (1. INSS)

Keywords:Severe Accident, Core Degradation, Relocation, MAAP5

MAAP5 analysis conditions for coolant leak flow from the reactor pressure vessel in the LOFT LP-FP-2 test were examined. We confirmed that the computed values of MAAP5 can trace the measured values of the primary system pressure and the amount of coolant retained. We confirmed that the analysis model of core degradation and relocation could be examined based on this MAAP5 analytical conditions.