| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5475130 | Annals of Nuclear Energy | 2017 | 8 Pages |
Abstract
The effects of the fuel pin bowing are simulated in a 3Â ÃÂ 3 pin-cells lattice to assess the possible modeling biases on isotopic concentrations during depletion calculations. The central pin in the lattice is modeled with a deformation and as a function of burn-up, characterized by a displacement in the two-dimensional (2D) lattice and a C-shape bowing in the three-dimensional (3D) lattice. The relative deviations of isotopic concentrations induced by the bowing effect are quantitatively investigated for four specific isotopes: 235U, 239Pu, 244Cm and 148Nd with the SERPENT-2 Monte Carlo code. For qualitative estimations, azimuthal and longitudinal distributions are also illustrated in the 2D and 3D models.
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Authors
J. Li, D. Rochman, J. Herrero, A. Vasiliev, H. Ferroukhi, A. Pautz, M. Seidl, D. Janin,