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

[1E10] Assessment of Core Status of TEPCO's Fukushima Daiichi Nuclear Power Plants

(92)Fukushima Daiichi Unit 2 plant analysis using SAMPSON/POOL3D

*Antonio Buccio¹, Marco Pellegrini¹, Masao Chaki¹, Masanori Naitoh¹ (1. The Institute of Applied Energy)

Keywords:SAMPSON, Several Accident, Suppression Chamber, Thermal stratification

The Fukushima Unit-2 accident behavior has been simulated using SAMPSON/POOL3D in order to investigate the debris distribution inside the RPV and to estimate the RPV failure time. Using a three dimensional description could help to understand the impact of the Suppression Pool on the RPV and PCV behavior during the accident.