Abstract
Reactivity space analysis of PWR core depletion is used to investigate solutions to the core burnup and fuel utilization maximization problems. Results of few-region analysis of the SEQUOYAH PWR with the EPRI nodal code simulate-e show that there is an order of magnitude difference in the effect of fuel arrangement and reactivity control in the optimal solutions. It is concluded that emphasis in the core reload design should be given to achieving the optimal fuel arrangement. Furthermore, it is shown that the constant power, Haling depletion strategy is an effective method of isolating the arrangement problem from reactivity control considerations during the core design process.
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