Application of Direct Search Technique to Optimal Refueling Channel Selection for CANDU Reactors

Abstract

The direct search technique has been applied for the optimal refueling channel selection for CANDU 6 reactors. In the optimization problem, the refueling channels are determined so that the reference zone power distribution is maintained, while satisfying the operation limits of channel and bundle powers. The performance of the optimum refueling channel selection method has been demonstrated for CANDU 6 reactors, and the results are satisfactory. Also, for the advanced CANDU fuel core, the applicability of the method was demonstrated by refueling simulations.