Numerical simulation on operation of closed-loop experimental facility with subsonic MHD generator

Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

Research output: Contribution to journalArticlepeer-review

Abstract

The operating characteristics and operation procedure of the closed-loop experimental facility under subsonic power generation have been investigated by means of time-dependent quasi-one-dimensional numerical simulations. Two ways of operation for subsonic power generation were found: (1) subsonic operation both under nonpower and power generation and (2) supersonic operation under nonpower generation and subsonic operation under power generation. For operation (1), Mach number at channel inlet decreases to -0.6, therefore it is required to generate plasma under this Mach number. On the other hand, if the plasma cannot be generated, operation (2) needs to be carried out. In this case, a shock wave appears in the generator channel, then the influence of a large pressure change and a vibration caused by a shock wave in the generator channel needs to be considered.

Original languageEnglish
Pages (from-to)25-33
Number of pages9
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume163
Issue number1
DOIs
Publication statusPublished - 2008 Apr 15
Externally publishedYes

Keywords

  • Closed-loop experimental facility
  • Continuous operation
  • Nonequilibrium MHD power generation
  • Subsonic operation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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