Oxygen redistribution with a high-temperature gradient is an important fuel performance concern in fast-breeder reactor (FBR) and light-water reactor (LWR) fuel under irradiation, and affects fuels properties, power distribution, and fuel overall performance. This paper studies the burnup dependent oxygen and heat diffusion behavior in a fully coupled way within FBR and LWR fuels. The temperature change shows relatively larger impact on oxygen to metal (O/M) ratio redistribution rather than O/M ratio change on temperature, whereas O/M ratio redistributions show different trends for FBR and LWR fuels due to their different deviations from the stoichiometry of oxygen under high-temperature environments.
Fully Coupled Simulation of Oxygen and Heat Diffusion for Fuel in Both Fast-Breeder Reactor and Light-Water Reactor
Manuscript received February 22, 2015; final manuscript received June 26, 2015; published online September 3, 2015. Assoc. Editor: Jovica R. Riznic.
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Zhou, W., and Liu, R. (September 3, 2015). "Fully Coupled Simulation of Oxygen and Heat Diffusion for Fuel in Both Fast-Breeder Reactor and Light-Water Reactor." ASME. ASME J of Nuclear Rad Sci. October 2015; 1(4): 041007. https://doi.org/10.1115/1.4031033
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