[3I01-05] Fukushima Daiichi Accident 1

[3I01] Assessment of Core Status of TEPCO's Fukushima Daiichi Nuclear Power Plants

(107) Evaluation for Long Term Erosion of Containment Floor by Sensitivity Analyses for Debris Accumulation Condition

*Masataka Hidaka¹, Tadashi Fujii¹, Takeshi Sakai¹ (1. IRID/Hitachi-GE)

Keywords:Fukushima Daiichi Nuclear Power Plants, Severe Accident, SAMPSON, Molten Core Concrete Interaction, Sensitivity Analyses

Sensitivity analyses for long term erosion of containment floor and pedestal wall of the Fukushima Daiichi Nuclear Power Plant Unit 1 were performed to estimate the containment vessel damage and debris status using the debris spreading analysis module and the containment thermal hydraulics analysis module of the SAMPSON code.