2016 Fall Meeting

Presentation information

Oral Presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2K10-15] Fukushima Daiichi NPP Accident 1

Thu. Sep 8, 2016 2:45 PM - 4:20 PM Room K (Kumume City Plaza - Assembly Room 1)

Chair: Hiroyuki Yoshida (JAEA)

4:00 PM - 4:15 PM

[2K15] Assessment of Core Status of TEPCO's Fukushima Daiichi Nuclear Power Plants

(81)Ex-vessel phenomena analysis of the accident in the Fukushima Daiichi nuclear power station Unit 1 using DSA-CVPA modules of SAMPSON

*Mirco Di Giuli1, Hyrouchi Suzuki1, Marco Pellegrini1, Masaori Naitoh1 (1.IAE)

Keywords:Severe Accident, Ex-Vessel phenomena, Hydrogen, MCCI, Sensitivity Analysis

The aim of this work is to perform a detailed analysis on the impact of the molten corium spreading and concrete ablation after the RPV failure on the PCV pressurization in the Fukushima Daiichi unit 1. In order to carry out this studies different cases were simulated varying the corium mass discharged and the pouring time using DSA1 and CVPA modules of SAMPSON.