Power Generation Experiments with a High Temperature Inert Gas Plasma Faraday Type MHD Generator

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  • ファラデー形発電機を用いた高温希ガスプラズマMHD発電実験
  • ファラデーケイ ハツデンキ オ モチイタ コウオンキガスプラズマ MHD ハツデン ジッケン

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Abstract

MHD power generation experiments have been conducted by using a single-pulsed shock-tunnel facility, where the high temperature inert gas (pure argon) at a fixed total temperature of 9000K is introduced into a linear shaped Faraday type generator without any seeding. The fluctuations in the output power and the light emission from the plasma are found to be small, and the pure inert gas plasma seems to be rather stable free from the ionization instability. The output power is improved with increasing the magnetic flux density in almost quadric way and the enthalpy extraction ratio does not depend on the inlet total pressure (11.2%-12.9% for 0.063MPa-0.105MPa). The generator performance obtained here is surely competitive or superior to that of conventional seed plasma MHD generators in the past.

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