Two- and Three-Dimensional Diffusion Theory Calculations for the Pool Critical Assembly Pressure Vessel Wall Benchmark Facility.

摘要

Several diffusion theory calculations for the Pool Critical Assembly Pressure Vessel Wall Benchmark Facility core were performed. Two-dimensional calculations were performed to study the effect of various multigroup cross-section libraries on the calculated power distribution and to study the effect of a small water gap between the core and an aluminum window simulator. Three-dimensional calculations were performed to study the effect of control rod modeling on the calculated power distribution. Calculated power distributions were compared with an experiment power distribution derived from miniature fission chamber measurements.