Prediction of the coolant temperature field in a breeder reactor including interassembly heat transfer

A general procedure for investigating the effect of interassembly heat transfer on the temperature field of a breeder reactor is provided. This procedure utilizes a simple multi-assembly code SUPERENERGY and a set of normalized assembly maps derived from this code. This procedure has been applied to a typical liquid metal fast breeder reactor (LMFBR) to study the effect of various concentric rings of coupled assemblies on the temperature prediction of the central assembly. Insignificant perturbation was found from second ring assemblies, while important perturbation was found from first ring assemblies. (Auth.)