Preliminary analysis of MHD-brayton cycle applied to fusion reactor (CFAB)

A compact fusion advanced Rankine cycle (CFAR) has been proposed and analyzed for a radiation-enhanced open-quotes microwaveclose quotes tokamak reactor with non-equilibrium MHD. Then the authors would like to show now possibility of MHD-Brayton cycle using helium applied to future fusion reactors. A disk type will be selected as an MHD generator. The basic equations used for the gas dynamical part are one-dimensional Navier Stokes, equations, of which quantities vary only along the plasma flow direction. The basic equations for the electrodynamical part are the Maxwell equations and the generalized Ohm's law. Two kinds of electrical power system are proposed: (a) a pure MHD cycle which consists of MHD generator and compressor; (b) an MHD-gasturbine combined cycle which consists of MHD generator, gasturbine-synchronous generator and compressor. Thermal input into MHD generator is kept constant at 400 MW. It is assumed that five MHD generation systems are combined into one fusion reactor of which thermal output ranges from about 1050 MW to 1180 MW