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Improvement in Performance of Non-equilibrium Disk MHD Generator by means of Radio-Frequency Plasma Control

Research Project

Project/Area Number 14550259
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionTokyo Institute of Technology

Principal Investigator

OKUNO Yoshihiro  Department of Energy Sciences, Interdisciplinary Graduate School of Science and Engineering, Professor, 大学院・総合理工学研究科, 教授 (10194507)

Co-Investigator(Kenkyū-buntansha) MURAKAMI Tomoyuki  Department of Energy Sciences, Interdisciplinary Graduate School of Science and Engineering, Associate Professor, 大学院・総合理工学研究科, 助手 (20323818)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2003: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2002: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsMHD Generator / Disk Generator / Non-equilibrium Plasma / Radio-Frequency Plasma / Pre-Ionization / Generator Performance
Research Abstract

In order to realize the high performance non-equilibrium disk MHD generator working under the wide range operating conditions, the plasma properties at the generator inlet should be controlled and optimized in response to the various operating conditions. From this viewpoint, the objectives of the present research are to improve the generator performance and expand the acceptable range of operating conditions by means of the radio-frequency plasma control (rf pre-ionization).
First of all, the power generation experiments with the rf pre-ionization temperatures, the output power was increased by the rf pre-ionization. Moreover, this increase exceeded the supplied rf power, and was more markedly observed for the low inlet stagnation temperature where no plasma was produced only by the Joule heating attributed to a self-excited electromotive force. Thus, it was verified that the acceptable range of the stagnation temperature was expanded by the rf pre-ionization.
Furthermore, the power generation experiments with He/Cs working fluid were conducted for the wide range of seed fractions and load resistances. It was confirmed that the output power was increased not only at the low seed fraction but also at the optimal or high seed fractions by the rf pre-ionization. The increase in the output power was verified for low load resistances leading less Joule heating. The plasma behavior and the generator performance under applying rf electromagnetic field were also examined with two-and three-numerical simulations.
As a result of the present research, "Improvement in Performance of Non-equilibrium Disk MHD Generator by means of Radio-Frequency Plasma Control" was successfully demonstrated, and the fruitful results obtained here surely contribute to the advancement in the research and development of the non-equilibrium plasma MHD electrical power generation.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] T.Fujino, T.Murakami, Y.Okuno, H.Yamasaki: "Experimental studies on Performance of a Non-equilibrium Disk MHD Generator with Radio-frequency Pre-ionization"IEEE Trans.Plasma Science. 31. 166-173 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Performance of Large Scale Non-equilibrium Plasma MHD Generator Coupled with Radio-Frequency Electromagnetic Field"IEEJ Transactions on Power and Energy. 123. 1587-1592 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 伊藤拓平, 村上朝之, 藤野貴康, 奥野喜裕, 山岬裕之: "高周波電磁界印加によるHe/Cs MHD発電機の性能向上実験"電気学会研究会資料. FTE-03. 25-30 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Three-dimensional Numerical Simulation on Performance of CCMHD Generator Coupled with Radio-Frequency Electromagnetic Field"The Papers of Technical Meeting on Frontier Technology and Engineering, IEE Japan. FTE-03. 59-64 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Fujino, T.Murakami, Y.Okuno, H.Yamasaki: "Experimental studies on Performance of a Non-equilibrium Disk MHD Generator with Radio-frequency Pre-ionization"IEEE Trans.Plasma Science. Vol.31, No.1. 166-173 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Performance of Large Scale Non-equilibrium Plasma MHD Generator Coupled with Radio-Frequency Electromagnetic Field"IEEJ Transactions on Power and Energy. Vol.123, No.12. 1587-1592 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ito, T.Murakami, T.Fujino, Y.Okuno, H.Yamasaki: "Improvement in Performance of He/Cs MHD Generator by Applying Radio-Frequency Electromagnetic Field"The Papers of Technical Meeting on Frontier Technology and Engineering, IEE Japan. FTE-03-42. 59-64 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Three-dimensional Numerical Simulation on Performance of CCMHD Generator Coupled with Radio-Frequency Electromagnetic Field"The Papers of Technical Meeting on Frontier Technology and Engineering, IEE Japan. FTE-03-42. 59-64 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Fujino, T.Murakami, Y.Okuno, H.Yamasaki: "Experimental studies on Performance of a Non-equilibrium Disk MHD Generator with Radio-frequency Pre-ionization"IEEE Trans.Plasma Science. Vol.31,No.1. 166-173 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] G.Lou.T.Fujino, Y.Okuno: "Performance of Large Scale Non-equilibrium Plasma MHD Generator Coupled with Radio-Frequency Electromagnetic Field"電気学会論文誌B. 123巻,12号. 1587-1592 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 伊藤拓平, 村上朝之, 藤野貴康, 奥野喜裕, 山岬裕之: "高周波電磁界印加によるHe/Cs MHD発電機の性能向上実験"電気学会研究会資料. FTE-03-36. 25-30 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Three-dimensional Numerical Simulation on Performance of CCMHD Generator Coupled with Radio-Frequency Electromagnetic Field"電気学会研究会資料. FTE-03-42. 59-64 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Fujino, J.Enogaki, T.Murakami, Y.Okuno, H.Yamasaki: "Experiments of Non-equilibrium MHD Generator with Radio-frequency Pre-ionization"Proceedings of the 14th International Conference on MHD Electrical Power Generation and Higy-Temperature Technologies. 413-418 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Fujino, T.Murakami, Y.Okuno, H.Yamashaki: "Experimental Studies on Performance of a Non-equilibrium MHD Generator with Radio-frequency Pre-ionization"IEEE Transactions on Plasma Science. Vol.31, No.1. (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] G.Lou, T.Fujino, Y.Okuno: "Large Scale Disk MHD Generator Coupled with Radio-frequency Electro magnetic Field"Proceeding of Symposium on Advanced Research of Energy Technology 2003. (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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