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R&D of High Reliable Refrigeration System for Superconducting Generators

  • Y. Ikeda
  • T. Umeda
  • T. Ichikawa
  • H. Yanagi
  • H. Asakura
  • K. Sano
  • H. Sugawara
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

Super-GM has been promoting R&D on 70MW class superconducting generators (called Model Machines) in addition to their refrigeration system. The helium refrigeration system for the SCGs must meet a stringent requirement of reliability higher than that of conventional systems. So far, its nominal performance has been successfully confirmed through a factory testing program. Subsequently, its system has been shifted to the verification site and a series of commissioning runs were made to verify the specifications. These runs include a performance of low temperature adsorber housed in a cold box, which is an influential factor for its continuous operation. For developing an advanced refrigeration system, an oil free turbine-drive turbo compressor have been tested and clarified the performance.

The present paper will report the test results of adsorber capacity measurements, cooling-down/warming-up the Model Machine and the recent progress in development of turbine-drive turbo compressors applied for the advanced refrigeration system using the helium Brayton cycle.

Keywords

Liquid Helium Suction Side Model Machine Centrifugal Compressor Refrigeration System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    T. Hosoya, H. Yanagi. And et al., R&D of High Reliable Refrigeration System for Superconducting Generators, Proc. of CEC/ICMC’95 conference, Columbus, Ohio, USA (1995)Google Scholar
  2. 2.
    H. Yanagi, M. Ikeuchi, A. Machida and Y. Ikeda, Development of Helium Refrigeration Systems for 70MW Class Superconducting Generators, Ploc. of ICEC16, P.159 (1997)Google Scholar
  3. 3.
    H. Asakura, N. Saji and et al., Performance Analysis of Multistage 80K Centrifugal Compressors for Helium Refrigerator, Proc. of ICEC16, P203 (1997)Google Scholar
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    H. Yanagi and et al., The Planning of A Low Temperature Purifier for Super-GM helium Refrigeration, “Advances in Cryogenic Engineering,” VOL.37 (1992), p771Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Y. Ikeda
    • 1
  • T. Umeda
    • 1
  • T. Ichikawa
    • 1
  • H. Yanagi
    • 2
  • H. Asakura
    • 3
  • K. Sano
    • 4
  • H. Sugawara
    • 5
  1. 1.Super-GMKita-ku, Osaka 530Japan
  2. 2.Advanced Technology Lab.Mayekawa Mfg. Co., Ltd.Moriya-Machi, Kitasooma-Gun, Ibaraki-Pref.Japan
  3. 3.General Machinery Div.Ishikawajima-Harima Heavy Industries Co., Ltd.Koto-ku, Tokyo 135Japan
  4. 4.Energy Conversion & Storage Dept.NEDOToshima-ku, Tokyo 170Japan
  5. 5.AISTChiyoda, Tokyo 100Japan

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