Thermal Optimization of the Helium-Cooled Power Leads for the SSC

  • J. A. Demko
  • W. E. Schiesser
  • R. Carcagno
  • M. McAshan
  • R. McConeghy

Abstract

The optimum thermal design of the power leads for the Superconducting Super Collider (SSC) will minimize the amount of Carnot work (which is a combination of refrigeration and liquefaction work) required. This optimization can be accomplished by the judicious selection of lead length and diameter. Even though an optimum set of dimensions is found, the final design must satisfy other physical constraints such as maximum allowable heat leak and helium vapor mass flow rate. A set of corresponding lengths and diameters has been determined that meets these requirements for the helium vapor-cooled, spiral-fin power lead design of the SSC.

Keywords

Titanium Convection Enthalpy Helium Liquefaction 

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References

  1. 1.
    R. McFee, “Optimum Input Leads for Cryogenic Apparatus,” The Review of Scientific Instruments, Vol. 30, No. 2, February 1959.Google Scholar
  2. 2.
    R. G. Mallon, “Optimum Electrical Leads of Aluminum and Sodium for Cryogenic Apparatus,” The Review of Scientific Instruments, Vol. 33, No. 4, April 1962.Google Scholar
  3. 3.
    K. R. Efferson, “Helium Vapor Cooled Current Leads,” The Review of Scientific Instruments, Vol. 38, No. 12, December 1967.Google Scholar
  4. 4.
    S. Deiness, “The Production and Optimization of High Current Leads,” Cryogenics, Vol. 5, October 1965.Google Scholar
  5. 5.
    Yu. L. Buyanov, “Current Leads for Use in Cryogenic Devices. Principle of Design and Formulae for Design Calculations,” Cryogenics, Vol. 25, February 1985.Google Scholar
  6. 6.
    M. Maehata, K. Ishibashi, M. Wake, A. Katase, and M. Kobayashi, “Optimization Method for Superconducting Magnet Current Leads,” Cryogenics, Vol. 28, November 1988.Google Scholar
  7. 7.
    W. E. Schiesser, “A Dynamic Model of the SSC Power Leads,” SSC Laboratory Informal Report, August 1990.Google Scholar
  8. 8.
    M. N. Wilson, Superconducting Magnets, Clarendon Press, Oxford, 1982.Google Scholar
  9. 9.
    W. M. Kays, Conveciive Heat and Mass Transfer, McGraw-Hill, 1966.Google Scholar
  10. 10.
    W. E. Schiesser, The Numerical Method of Lines Integration of Partial Differential Equations, Academic Press, San Diego, 1991.Google Scholar
  11. 11.
    S. V. Patankar, Numerical Heat Transfer and Fluid Flow, Hemisphere Publishing Corporation, 1980.Google Scholar
  12. 12.
    A. Devred, SSC Laboratory, Internal Communication.Google Scholar
  13. 13.
    E. W. Collings, Applied Superconductivity, Metallurgy, and Physics of Titanium Alloys, Plenum Press, 1986.Google Scholar
  14. 14.
    R. P. Reed, and A. F. Clark, Matertals at Low Temperatures, American Society for Metals, 1983.Google Scholar
  15. 15.
    J. R. Sanford, and D. M. Matthews, Site-Specific Conceptual Design of the Superconducting Super Collider, SSCL-SR-1056, July 1990.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • J. A. Demko
    • 1
  • W. E. Schiesser
    • 1
  • R. Carcagno
    • 1
  • M. McAshan
    • 1
  • R. McConeghy
    • 1
  1. 1.Superconducting Super Collider LaboratoryDallasUSA

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