Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1729907 | Annals of Nuclear Energy | 2008 | 20 Pages |
Abstract
This paper investigates the dynamics of a postulated criticality in a powder used as part of fuel processing. Numerical simulations are performed in 2D and 3D geometries in which layers of MOX, UO2 and zinc stearate (acting as a moderating lubricant) powders become supercritical. The system simulated here were initialised with a step reactivity insertion of 1$, 2$ and 5$. The coupled radiation and multiphase–multicomponent simulations showed complex dynamics with an increase of powder temperature and mixing of the moderator into the MOX.
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Authors
J.L.M.A. Gomes, C.C. Pain, M.D. Eaton, A.J.H. Goddard, M.D. Piggott, A.K. Ziver, C.R.E. de Oliveira, Y. Yamane,