Transient Heat Transfer of Supercritical Helium in High Centrifugal Acceleration Field

  • M. Furuse
  • O. Tsukamoto
  • T. Takao
  • S. Fuchino
  • I. Ishii
  • M. Okano
  • N. Tamada
Chapter
Part of the Advances in Cryogenic Engineering book series (ACRE)

Abstract

Transient heat transfer of supercritical helium in centrifugal acceleration field has been measured for studying the stability characteristics of superconducting rotor windings of a superconducting generator. A temperature resistive platinum-0.5% cobalt (Pt-Co) thin wire, having small heat mass, was used as a temperature sensor and heater to measure the heat transfer characteristics. It was observed that the steady state heat transfer of supercritical helium in 3600G (G; gravity acceleration) was established in 200μsec. In the paper, data of transient heat transfer of supercritical helium in centrifugal acceleration field are shown and their specific characteristics are studied comparing with those of liquid helium.

Keywords

Convection Cobalt Helium Boiling 

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References

  1. 1.
    O. Tsukamoto, M. Furuse, T. Takao, N. Tamada, S. Fuchino, I. Ishii and N. Higuchi, Transient Heat Transfer Characteristics of Liquid Helium in Centrifugal Acceleration Field, Advances in Cryogenic Engineering, Vol.43B, Plenum Press, New York(1998), pp.1489–1496.Google Scholar
  2. 2.
    R. Nakajima, K. Sato, K. Miyake, M. Kumagai and Y. Kobayashi, Liquid and Supercritical Helium Heat Transfer of Horizontal Upward Facing Surfaces under High Centrifugal Acceleration Fields, ASME HTD-Vol.229, Heat Transfer in Superconducting Equipment, Book No. G00721 (1992), pp.39–44.Google Scholar

Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • M. Furuse
    • 1
  • O. Tsukamoto
    • 1
  • T. Takao
    • 2
  • S. Fuchino
    • 3
  • I. Ishii
    • 3
  • M. Okano
    • 3
  • N. Tamada
    • 3
  1. 1.Yokohama National UniversityYokohama, KanagawaJapan
  2. 2.Sophia UniversityChiyoda, TokyoJapan
  3. 3.Electrotechnical LaboratoryTsukuba, IbarakiJapan

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