Actinide Burning in a Standard Pressurized Water Reactor
نویسنده
چکیده
This study investigates actinide burning in a standard lattice PWR. It assumes that after the first loading of depleted uranium, plutonium and minor actinides, only the fission products are removed and only depleted uranium and the plutonium/minor actinide mixture are added. The relative concentrations of plutonium and minor actinide feed are always maintained the same as PWR discharge fuel after 33,000 MWD/MTU burnup. It is found that the minor actinides act as a burnable absorber. After seven reloading, a burnup of 64,000 MWD/MTU yields a reactivity change of less than 3% zik/k . This property of the minor actinides suggests that the minor actinides should not be separated from the plutonium. In equilibrium, one actinide burner would be required for every two standard PWRS.
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