Supercollider 4 pp 993-1000 | Cite as

A Circuit Theory Approach to Quantifying Thermal Performance of Cryostat Designs for SSC Dipole Magnets

  • T. Kupiszewski


Design of cryogenic cooling systems for superconducting magnets requires a priori knowledge of the total heat transferred from ambient to the cold mass as well as to its surrounding thermal shields. To estimate this net parasitic heat leak through the cryostat of the Collider Dipole Magnet (CDM) an equivalent thermal circuit representation of the CDM cryostat is developed to numerically simulate the multimode, spatially-averaged heat flow occurring after thermal equilibrium is established. In this paper, the formulation of the proposed circuit model is summarized. The model was implemented in a computer program which was run to compute representative values for the net steady-state heat flow expected to occur within a CDM cryostat. A breakdown of this heat leak on a component basis is provided in tabular form. The effects of inner shield temperature and pressure are simulated and the results of these simulations are plotted.


Heat Flow Support Post Heat Leak Cold Mass Multi Layer Insulation 
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  1. 1.
    E.R.G. Eckert and R.M. Drake, jr., Analysis of Heat and Mass Transfer, McGraw-Hill, Inc. (1972)Google Scholar
  2. 2.
    W. Frost, Heat Transfer at Low Temperatures, Plenum Press, New York (1975)Google Scholar
  3. 3.
    T. Nicol, “Component and System Design - Suspension Design,” presented at the SSC Collider Dipole Magnet Technology Transfer Meeting, Cryostat Session, Dallas, (5/23/91)Google Scholar
  4. 4.
    J. P. Holman, Heat Transfer. 5th ed., McGraw-Hill Book Co., New York (1981)Google Scholar
  5. 5.
    R.F. Barron, Cryogenic Systems. 2nd ed., Oxford University Press, New York (1985)Google Scholar
  6. 6.
    W.N. Boroski, T.H. Nicol, and C.J. Schoo, “Design of the Multilayer Insulation System for the Superconducting Supercollider 50 mm Dipole Cryostat,” Proceedings of the 3rd IISSC Conference held March 13–15, 1991, in Atlanta, Plenum Press, New YorkGoogle Scholar
  7. 7.
    T.H. Nicol, “Design Development for the 50MM Superconducting Super Collider Dipole Cryostat,” Proceedings of the 3rd ISSC Conference held March 13–15, 1991, in Atlanta, Plenum Press, New YorkGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • T. Kupiszewski
    • 1
  1. 1.Science & Technology CenterWestinghouse Electric CorporationPittsburghUSA

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