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Journal of Superconductivity and Novel Magnetism

, Volume 28, Issue 3, pp 1185–1188 | Cite as

Heat Transfer Characteristics of a Horizontal Wire in Pools of Liquid and Supercritical Hydrogen

  • Hideki Tatsumoto
  • Yasuyuki Shirai
  • Masahiro Shiotsu
  • Yoshihiro Naruo
  • Hiroaki Kobayashi
  • Yoshifumi Inatani
Original Paper

Abstract

Heat transfer from a horizontal wire immersed in both liquid and supercritical hydrogen was measured with a quasi-steady increase of the heat generation rate for a wide range of bath temperatures and pressures. The nucleate boiling heat transfer coefficient is higher for higher pressures. The critical heat flux (CHF) is highest in the vicinity of 0.4 MPa and is expressed by Kutateladze’s equation. The CHFs become higher for higher degrees of subcooling. The heat transfer under supercritical pressures is the same as natural convection heat transfer in liquid hydrogen, but it deteriorates for heated surface temperautres higher than the pseudocritical temperature. The heat transfer correlation was derived based on the experimental data.

Keywords

Heat transfer Pool boiling Liquid hydrogen Supercritical pressure 

Notes

Acknowledgments

This research was partly supported by JST, ALCA.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Hideki Tatsumoto
    • 1
  • Yasuyuki Shirai
    • 2
  • Masahiro Shiotsu
    • 2
  • Yoshihiro Naruo
    • 3
  • Hiroaki Kobayashi
    • 3
  • Yoshifumi Inatani
    • 3
  1. 1.J-PARC Center, Japan Atomic Energy AgencyTokaiJapan
  2. 2.Department of Energy Science & TechnologyKyoto UniversityKyotoJapan
  3. 3.Japan Aerospace Exploration AgencyInstitute of Space and Astronautical ScienceSagamiharaJapan

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