Design and Analysis of a High-Purity Aluminum Inductor

  • C. R. Gibson
  • M. W. Dew
  • E. R. Johnson
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 35)


This paper reports on the design and the electromagnetic and thermal analysis of a hydrogen-cooled, high-purity aluminum inductor. The goal of the design is a light-weight coil which utilizes the available liquid hydrogen as coolant. Aluminum was chosen as the conductor material because of its low weight and high RRR at liquid hydrogen temperatures. The conductor consists of a composite aluminum cable which incorporates high-purity aluminum filaments. The cable is spirally wrapped around a 1.8 m diameter, 0.3 m high nonmetallic ring. This geometry was chosen to maximize the heat transfer from the conductor and to ensure an even current distribution. Cooling is provided by liquid hydrogen flowing through the coil. The coil’s field and forces have been analyzed using a three-dimensional electromagnetic model. A detailed thermal analysis of the coil has also been completed.


Surface Heat Flux Hoop Stress Liquid Hydrogen OFHC Copper Composite Wire 
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  1. 1.
    J.C. Ho, C.E. Oberly, H.L. Gegel, W.M. Griffith, J.T. Morgan, W.T. O’Hara, and Y.V.R.K. Prasad, “A New Aluminum-Base Alloy with Potential Cryogenic Applications,” Advances in Cryogenic Engineering-Material., Vol. 32, Plenum Press (1986), pg. 437.CrossRefGoogle Scholar
  2. 2.
    C.A. Thompson, A.J. Zink, and F.R. Fickett, “Magnetoresistance Studies of Metal/Metal Composite Conductors,” Paper DY-03, CEC/ICMC 1989.Google Scholar
  3. 3.
    K.T Hartwig and R.J. DeFrese, “Cryogenic Mechanical and Electrical Testing of Aluminum Cryoconductors,” Paper DY-04, CEC/ICMC 1989.Google Scholar
  4. 4.
    M.W. Dew, J.M. Strohmayer, and E.R. Johnson, “Heat Transfer in Pressurized Liquid Hydrogen at Low Values of Film s-T,” Paper FF-16, CEC/ICMC 1989.Google Scholar
  5. 5.
    W.J. Carr, “AC Loss in a Composite Hyperconductor,” Paper CY-06, CEC/ICMC 1989.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • C. R. Gibson
    • 1
  • M. W. Dew
    • 1
  • E. R. Johnson
    • 1
  1. 1.General AtomicsSan DiegoUSA

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