Computational Analysis of Supercritical CO2 Brayton Cycle Power Conversion System for Fusion Reactor

The Optimized Supercritical Cycle Analysis (OSCA) code is being developed to optimize the design of a supercritical carbon dioxide (S-CO2) driven Brayton cycle for a fusion reactor as part of the Modular Optimal Balance Integral System (MOBIS). This system is based on a recompression Brayton cycle. S-CO2 is adopted as the working fluid for MOBIS because of its easy acquisition, high density and low chemical reactivity. The helium-cooled lithium lead model AB of DEMO fusion reactor is used as reference in this paper.