Advanced helium cooled pebble bed blanket with SiC_f/SiC as structural material

摘要

The Helium Cooled Pebble Bed blanket concept developed in the frame of the EPB-programme is based on the use of low activeation ferritic/martensitic steel (EUROFER-97) as structural material. As the maximum, allowable temperature of this steel is 550deg.c, the coolant helium temperature can not exceed 450-500deg.c, resulting in a relatively low thermal efficiency of the power generation system.