Effects of Magnetohydrodynamic Fluctuation on Performance of a Disk-type MHD Generator

Abstract

The fluctuating output power has been observed for a disk-type MHD generator in the FUJI-1 exper-imental facility for closed cycle MHD power generation. The fluctuation increases under the high loading conditions achieved with high seed fraction or high load resistance. In coincident with a big fluctuation of power output, the static pressure at the nozzle oscillates with frequency of about 500Hz. The electron temperature of the plasma fluctuates in wide electron temperature range between the partially ionized seed and the fully ionized seed.