Advertisement

Perlite for Cryogenic Insulation

  • R. H. Kropschot
  • R. W. Burgess
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 8)

Abstract

Perlite is a moisture-containing volcanic rock found in large deposits throughout the world. When the rock is crushed and expanded with heat (a process similar to the popping of com) it makes excellent insulation for many cryogenic applications, Perlite has a low thermal conductivity and is inexpensive. It is not as hygroscopic as other siliceous powders and therefore is easier to prepare for vacuum conditions. In the past, evacuated perlite has been used extensively to insulate transport vessels for cryogenic fluids. Perlite is mined primarily in the western United States. There are large perlite deposits located near Rosita and Antonito, Colorado, and Socorro and Magdalena, New Mexico. The chemical composition of perlite will vary slightly, depending upon the location in which it is mined.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. C. L. Bosworth, Heat Transfer Phenomena, John Wiley and Sons, New York (1952).Google Scholar
  2. 2.
    M. Jakob, Heat Transfer, Vol. 1, John Wiley and Sons, New York (1958).Google Scholar
  3. 3.
    R. J. Corruccini, CEL-NBS (unpublished data). This work compares several mathematical expressions with results obtained by the relaxation method Nickerson and Dusinberre, Trans. ASME Vol 70, 903 (1948).Google Scholar
  4. 4.
    R. Viskanta and R. J. Grosh, J. Heat Transfer Vol. 84, 64 (1962).CrossRefGoogle Scholar
  5. 5.
    M. M. Fulk, Progress in Cryogenics, Vol. 1, K. Mendelssohn (ed.), Heywood and Company, Ltd., London (1959), p. 65.Google Scholar
  6. 6.
    P. C. Carman, Flow of Gases Through Porous Media, Academic Press, Inc., New York (1956).Google Scholar
  7. 7.
    Beech Aircraft Corporation, unpublished data.Google Scholar
  8. 8.
    G. R. Kinzer, Jr., Johns Manville Research Center, Manville, New Jersey, unpublished data.Google Scholar
  9. 9.
    R. Holm, Electrical Contacts, Springer-Verlag, Berlin (1958), p. 198.Google Scholar
  10. 10.
    M. M. Fulk, et al., Advances in Cryogenic Engineering, Vol 2, K. D. Timmerhaus (ed.), Plenum Press, New York (1960), p. 163.CrossRefGoogle Scholar
  11. 11.
    D. Cline and R. H. Kropschot, Radiative Transfer from Solid Materials, H. H. Blau (ed.), The Macmillan Co., New York (1962).Google Scholar
  12. 12.
    R. L. Henry, J. Opt. Soc. Am., Vol. 38, 775 (1948).CrossRefGoogle Scholar
  13. 13.
    S. T. Stoy, Advances in Cryogenic Engineering, Vol. 5, K. D. Timmerhaus (ed.), Plenum Press, New York (1959), p. 216.Google Scholar
  14. 14.
    R. W. Arnett, K. A. Warren, and L. O. Mullen, Optimum Design of Liquid Oxygen Containers, WADC Technical Report 59–62 (August, 1961), p. 118.Google Scholar
  15. 15.
    V. R. Deitz, R. C. Little, and F. G. Carpenter, NBS, Washington, D. C. (to be published).Google Scholar

Copyright information

© Springer Science+Business Media New York 1963

Authors and Affiliations

  • R. H. Kropschot
    • 1
  • R. W. Burgess
    • 1
  1. 1.CEL National Bureau of StandardsBoulderUSA

Personalised recommendations