Abstract

A homogenization technique is developed to account for the interassembly neutron leakage effect on the homogenized parameters within generalized equivalence theory. To assess its accuracy, the method is implemented into a two-group nodal diffusion model. Both one and two dimensional Boiling Water Reactor benchmark problems are considered. Comparisons to fine-mesh results show an average of 30% accuracy improvement in the nodal power for the most heterogeneous case.

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