Heat Transfer in a Disk MHD Generator under the Influence of Lorentz Force

Toshio Kinoshita, Kazumi Tsunoda, Kunio Yoshikawa

Research output: Contribution to journalArticle

Abstract

Heat fluxes from a supersonic high temperature inert gas flow to electrodes in a disk MHD generator are measured under the strong influence of Lorents force. When we compare heat fluxes from the inert gas flow to electrodes with and without magnetic field, it has been observed that strong MHD interaction significantly increase heat fluxes especially in the middle region of the disk generator. This increase of heat fluxes shows a strong correlation with rise of the static pressure induced by the MHD interaction. By raising the inlet temperature of the inert gas, the region with strong MHD interaction expands to upstream because of shortening of the ionization relaxation region. For the same static pressure rise, helium shows more significant increase of heat fluxes than argon, which may ascribed to an unstable fluctuated helium plasma.

Original languageEnglish
Pages (from-to)3617-3623
Number of pages7
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume59
Issue number567
DOIs
Publication statusPublished - 1993 Jan 1

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Keywords

  • Disk MHD Generator
  • Heat Transfer
  • Lorentz Force
  • MHD Interaction
  • MHD Power Generation
  • Magnetohydrodynamics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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