Performance Characteristics of Commercial Scale Disk MHD Generator with Plasma Production Technique

§R-z two-dimensional numerical simulations have been carried out to explore the usefulness of the rf preionization and the influences of asymmetric configurations of anode electrode and rf coil on the generator performance for a commercial scale, large disk-shaped MHD generator with the thermal input of 1000 MW. The numerical results have clearly demonstrated that the rf preionization is useful for improving the plasma state and the generator performance, and also that the asymmetric configurations of anode electrode and rf coil have little negative influence on the generator performance.

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