Power Density and Electrical Efficiency in Closed Cycle MHD Generator with Fully Ionized Seed

Hiroyuki YAMASAKI; Susumu SHIODA

doi:10.3327/jnst.15.313

著者情報

キーワード: MHD generators, reduced seed concentration, power density, electrical efficiency, loading factor, Faraday and Hall generators, ionization instability, Hall effect, electrical conductivity, performance

ジャーナルフリー

1978 年 15 巻 5 号 p. 313-322

DOI https://doi.org/10.3327/jnst.15.313

詳細

抄録

Effects of a reduced seed concentration on performances of a nonequilibrium MHD generator are investigated by calculating power densities and electrical efficiencies for both Faraday and Hall generators.
It is shown that high electrical efficiencies and high power densities are obtained simultaneously by suppressing the ionization instability with reduced seed fractions (10^-4 10^-5) when values of the effective electrical conductivity and the effective Hall param-eter recover to above 50% of their ideal ones. Results also indicate that argon is more suitable for a working fluid than helium in the case of a reduced seed concentration.

責任著者(Corresponding author)

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