Investigation of in-reactor cesium chemical behavior in TEPCO’s Fukushima Daiichi Nuclear Power Station accident

Faoulat Miradji

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 403-1 Reactor Chemistry, Radiation Chemistry, Corrosion, Water Chemistry,Water Quality Control

[2M14-17] Accident Chemitry 2

Tue. Mar 27, 2018 3:50 PM - 4:55 PM Room M (M1-313 -M1 Building)

Chair: Shinya Mizokami (TEPCO HD)

3:50 PM - 4:05 PM

[2M14] Investigation of in-reactor cesium chemical behavior in TEPCO’s Fukushima Daiichi Nuclear Power Station accident

(4)Quantum modelling of Cs substances in the case of LWR severe accident

*Faoulat Miradji^2,1, Chikashi Suzuki¹, Kunihisa Nakajima^2,1, Masahiko Osaka^2,1 (1. JAEA, 2. IRID)

Keywords:Cesium , silicates, DFT, Thermodynamic

Theoretical calculations were conducted in order to provide the unknown thermochemical properties of Cs-Si-Fe-O systems for the establishment of Cs chemisorption model based on the mass transfer theory. The computational methodology was validated by calculating the thermal properties of Cs₂Si₄O₉ revealing a good agreement with the literature data.