Thermomechanical Analysis of Different First Wall Designs for the Helium Cooled Pebble Bed Canister Blanket for NET

摘要

A 2-D thermomechanical analysis of He-cooled first wall designs with radiatively cooled protection tiles was performed with the FE-code ABAQUS. These designs were suggested for the KfK-NET blanket concept with ceramic breeder material. The calculated temperature distributions for the tiles and for the underlying steel structure are reported. In addition the stress distributions for the steel structure are presented. All calculations were performed for steady state conditions. The results show that a helium cooled first wall for heat fluxes up to 40 W/cm/sup 2/ seems feasible. (ERA citation 13:025636)