A two-dimensional, finite-difference model of the oxidation of a uranium carbide fuel pellet | Zendy

James Shepherd | Zendy; Michael Fairweather | Zendy; Bruce C. Hanson | Zendy; Peter J. Heggs | Zendy

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A two-dimensional, finite-difference model of the oxidation of a uranium carbide fuel pellet

Author(s) -

James Shepherd,

Michael Fairweather,

Bruce C. Hanson,

Peter J. Heggs

Publication year - 2015

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4938974

Subject(s) - uranium , exothermic reaction , pellet , heat transfer , mass transfer , carbide , nuclear engineering , materials science , nuclear fuel , fuel cycle , spent nuclear fuel , chemical engineering , chemistry , nuclear chemistry , metallurgy , thermodynamics , physics , composite material , engineering

The oxidation of spent uranium carbide fuel, a candidate fuel for Generation IV nuclear reactors, is an important process in its potential reprocessing cycle. However, the oxidation of uranium carbide in air is highly exothermic. A model has therefore been developed to predict the temperature rise, as well as other useful information such as reaction completion times, under different reaction conditions in order to help in deriving safe oxidation conditions. Finite difference-methods are used to model the heat and mass transfer processes occurring during the reaction in two dimensions and are coupled to kinetics found in the literature.

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