Thermal expansion of UO2+x nuclear fuel rods from a model coupling heat transfer and oxygen diffusion
Journal Article
·
· Journal of Nuclear Materials
OSTI ID:960472
- Los Alamos National Laboratory
- EXPONENT, INC.
We study the thermal expansion of UO{sub 2+x} nuclear fuel rod in the context of a model coupling heat transfer and oxygen diffusion discussed previously by J.C. Ramirez, M. Stan and P. Cristea [J. Nucl. Mat. 359 (2006) 174]. We report results of simulations performed for steady-state and time-dependent regimes in one-dimensional configurations. A variety of initial- and boundary-value scenarios are considered. We use material properties obtained from previously published correlations or from analysis of previously published data. All simulations were performed using the commercial code COMSOL Multiphysics{sup TM} and are readily extendable to include multidimensional effects.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 960472
- Report Number(s):
- LA-UR-08-04952; LA-UR-08-4952; JNUMAM; TRN: US1002048
- Journal Information:
- Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials; ISSN 0022-3115
- Country of Publication:
- United States
- Language:
- English
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