2019 Annual Meeting

Presentation information

Oral presentation

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

[2I01-05] Fukushima Daiichi

Thu. Mar 21, 2019 9:30 AM - 10:45 AM Room I (Common Education Bildg. 2 3F No.30)

Chair:Koji Nishida(INSS)

9:30 AM - 9:45 AM

[2I01] Evaluation of Fission Products Released during the NPP Severe Accident

25. FP Behavior Analysis in the PCV of the Unit 1-3 with SAMPSON Code

*Hidetoshi Karasawa1, Shunsuke Uchida1, Chiaki Kino1, Marco Pellegrini1, Masanori Naito1 (1. IAE)

Keywords:nuclear power plant, severe accident, source term, fission product

FP behavior in the PCV and WW of the Unit 3 was analyzed for about 500 hours after the shutdown with the SAMPSON code. The deposited amounts for each chemical form of FPs were calculated. The differences of the deposited amounts among three units were discussed based on the accident scenarios. The validity of thermal equilibrium calculations to determine the chemical form of FPs was discussed.