Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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KINETIC MODELING STUDY OF A VOLOXIDATION FOR THE PRODUCTION OF U3O8 POWDER FROM A UO2 PELLET

  • Published : 2009.10.31
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Abstract

A kinetic model for the oxidation of a $UO_2$ pellet to $U_3O_8$ powder has been suggested by considering the mass transfer and the diffusion of oxygen molecules. The kinetic parameters were estimated by a fitting of the experimental data. The activation energies for the chemical reaction and the product layer diffusion were calculated from the kinetic model. The oxidation conversion of a $UO_2$ pellet was simulated at various operating conditions. The suggested model explains the oxidation behavior of $UO_2$ well.

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References

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