[1E08-12] Severe Accident of Fukushima Daiichi 1

[1E08] Assessment of Core Status of TEPCO's Fukushima Daiichi Nuclear Power Plants

(90)Sensitivity analysis of Fukushima Daiichi unit 1 ex-vessel scenario by the SAMPSON code

*Davide Concu¹, Marco Pellegrini¹, Masao Chaki¹, Masanori Naitoh¹ (1. IAE)

Keywords:SAMPSON, MCCI, Fukushima Daiichi accident

A sensitivity analysis of the severe accident of Fukushima Daiichi Unit 1 is performed by means of CVPA and DSA-1 modules of SAMPSON code. The study intends to evaluate a final relocation of the fuel debris and estimate the concrete ablation in the pedestal and drywell environments of the Pressure Containment Vessel.