2017 Annual Meeting

Presentation information

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)

2:45 PM - 3:00 PM

[1K05] Evaluation of Fission Products Released during the NPP Severe Accident

(17)Improvement of Cs deposition model in the SAMPSON code

*Ayumi Itoh1, Karasawa Hidetoshi1, Marco Pellegrini1, Okada Hidetoshi1, Naitoh Masanori1 (1. The Institute of Applied Energy)

Keywords: SAMPSON, cesium , chemisorption, Fukushima NPP accident, Fission products

Evaluation of cesium distribution released during the severe accident is important for decommissioning because of its large contribution to the gamma radioactivity. In this presentation, the chemisorption model of cesium hydroxide to form insoluble compounds on the structure surface will be reported with the new findings obtained after the Fukushima Nuclear Power Plant accident.