High-enthalpy extraction demonstration with closed-cycle disk MHD generators

N. Harada, T. Suekane, K. Tsunoda, H. Yamasaki, S. Shioda

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Recent results of high-enthalpy extraction experiments with closed-cycle MHD disk generators are described. Power generation experiments were carried out with two types of facility: the shock tube facility with the Disk-IV generator and the FUJI-1 blow-down facility. In the shock tube experiments, the effect of channel shape on generator performance was studied using helium seeded with cesium as working fluid. A more divergent channel shape was effective in sustaining a high Hall field throughout the channel and achieving high generator performance even under the strong MHD interaction. High-enthalpy extraction of 27.3 percent was achieved. Furthermore, these experimental results agree well with the results of one-dimensional calculations. In the FUJI-1 blow-down experiments, the effect of stagnation gas pressure on performance was studied with a working gas of seeded argon. The highest enthalpy extraction ratio of 15.7percent was achieved with the lower stagnation pressure of 0.46 MPa, whereas the largest output power of'516.7' kWand power density of 70 MW/m3 were extracted with the nominal stagnation pressure of 0.6 MPa. This suggested the possibility of a part-load operation without significant degradation of generator performance by reducing stagnation pressure.

本文言語English
ページ(範囲)15-21
ページ数7
ジャーナルJournal of Engineering for Gas Turbines and Power
118
1
DOI
出版ステータスPublished - 1996 1月
外部発表はい

ASJC Scopus subject areas

  • 原子力エネルギーおよび原子力工学
  • 燃料技術
  • 航空宇宙工学
  • エネルギー工学および電力技術
  • 機械工学

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