Considering for the blanket structure scheme of HCCB DEMO

Abstract

ABSTRACT: For the solid blanket concept of helium cooled ceramic breeder (HCCB) demonstration fusion power plant (DEMO), a feasible blanket structure with configuration 2×X is proposed as considering relatively low temperature limit of neutron multiplier beryllium pebbles. Based on that, preliminary design for the typical blanket module of HCCB DEMO has been carried out and verified by thermal-hydraulic analysis and structural analysis. Furthermore, the specific relationship of maximum temperature depended on the surface heating of blanket key part first wall (FW) is also analyzed. Keywords: Helium cooled ceramic breeder (HCCB), Demonstration fusion power plant, (DEMO), Blanket structure scheme, Preliminary design and analysis