Electro-fluid analysis of a molten-salt electrorefiner with rotating cruciform anode baskets |
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Authors: | K R Kim S Y Choi D H Ahn S Paek H S Lee I S Hwang |
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Institution: | (1) Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Korea;(2) Seoul National Univ, San 56-1, Sillim-dong, Gwanak-gu, Seoul, 151-742, Korea |
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Abstract: | A computational fluid dynamics (CFD)-based multiphysics model of a molten-salt electrorefiner is presented for the computational
electro-fluid analysis. A target model of the electrorefining cell presented here has a structure arranged concentrically
with the cathode annulus surrounding a rotating cruciform anode inside it. This comprehensive approach of a multiphysics model
solves the convective and diffusive transport of ionic uranium and allows for a prediction of the concentration present in
the LiCl–KCl eutectic electrolyte between the electrodes at a current driven condition. The coupling of the local overpotential
distribution and uranium concentration gradient makes it possible to predict the local current density distribution at the
electrode surfaces. |
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