[2B05-09] Fukushima Accident 2

[2B08] Assessment of Core Status of TEPCO's Fukushima Daiichi Nuclear Power Plants

(105)3D-MCCI analysis for 1F Unit-2&3 using SAMPSON code

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

Keywords:Fukushima Daiichi Nuclear Power Plant, MCCI, SAMPSON

A sensitivity study on the ex-vessel accident progression in the 1F2 and 1F3 based on the best available information at this time were performed. The work has been carried-out coupling the Debris Spreading Analysis (DSA1) and the Containment Vessel Phenomena Analysis (CVPA) modules of SAMPSON code. Different sets of boundary conditions have been selected for each test case, in order to perform the sensitivity analyses within a broader spectrum of possible scenarios.