2017 Annual Meeting

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Oral presentation

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

[1K05-08] Source term and Filtered Vent

Mon. Mar 27, 2017 2:45 PM - 3:50 PM Room K (16-306 Building No.16)

Chair: Tetsuaki Takeda (Univ. of Yamanashi)

3:00 PM - 3:15 PM

[1K06] Evaluation of Fission Product Released during the NPP Sevier Accident

(18)Evaluation of Cs deposition behavior by Phebus FPT1 test analysis

*Hidetoshi Karasawa1, Ayumi Ito1, Marco Pellegrini1, Hidetoshi Okada1, Masanori Naito1 (1. Institute of Applied Energy)

Keywords:SAMPSON code, Phebus FPT1 test, Cs chemical forms, deposition mechanism

Cs deposition mechanism was evaluated by analesis of the Phebus FPT1 test using the SAMPSON code. Chemical forms of Cs species are Cs2MoO4 and CsOH/CsI, which have been considered to be main Cs chemical forms. Main deposition mechanisms were condensation and thermophoresis.