Numerical study on performance of disk MHD generator using frozen inert gas plasma

Hiromichi Kobayashi, Yukimasa Satou, Yoshihiro Okuno

研究成果: Article査読

19 被引用数 (Scopus)

抄録

In an magnetohydrodynamic (MHD) generator using a frozen inert gas plasma (FIP), the availability of a frozen argon plasma, the influence of plasma uniformity at the generator inlet on the performance, and the feasibility of a large-scale generator are numerically examined by r-θ two-dimensional simulation. The FIP is produced by pre-ionizing inert gas without an alkali metal seed at the generator inlet, then the ionization degree of the plasma is kept almost constant in the whole of the channel because of considerable slow recombination of the inert gas just like frozen reaction plasma. It is found that not only helium, but also argon frozen plasma MHD generation is realized, although highly accurate control of inlet ionization degree is necessary for argon. It is important to reduce the nonuniformity of plasma properties at the generator inlet in order to raise the maximum enthalpy extraction ratio. Even for the large-scale generator with 1000-MW thermal input, the ionization degree is kept almost constant in the whole of the channel and the high performance is obtainable. This result is extremely attractive for the FIP MHD generator.

本文言語English
ページ(範囲)2152-2159
ページ数8
ジャーナルIEEE Transactions on Plasma Science
30
6
DOI
出版ステータスPublished - 2002 12月

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 凝縮系物理学

フィンガープリント

「Numerical study on performance of disk MHD generator using frozen inert gas plasma」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル