The Thermal Transmission Properties of High Temperature Thermal Insulation Materials

  • R. P. Tye
  • A. O. Desjarlais
  • S. E. Smith


The increased need for energy conservation measures for furnace and other high temperature applications has focused attention on the thermal performance of available thermal insulation materials. Thermal transmission properties have been measured on a number of alumino-silicate, alumina, and fibrous yttria stabilized zirconia-blanket, felt and board products in accordance with ASTM C177-76, “Steady-State Thermal Transmission Properties by Means of the Guarded Hot Plate.” All measurements were made with the heat flow normal to the fiber direction.

Thermal transmission property data are presented for the temperature range 100 to 1000C. The results are analyzed and discussed with regard to the following considerations:
  • Comparisons with data in manufacturer’s literature;

  • Variability in recovered thickness and density when compared to nominal values;

  • Effect of temperature difference on the thermal performance at the same mean temperature;

  • Effects of density of a single manufactured product on the thermal performance;

  • Comparison of similar products from different manufacturers;

  • Relative performance of different fibers at a similar density of product;


Thermal Performance Thermal Insulation Material Fiber Insulation Nominal Density Energy Conservation Measure 
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Copyright information

© Purdue Research Foundation 1985

Authors and Affiliations

  • R. P. Tye
    • 1
  • A. O. Desjarlais
    • 1
  • S. E. Smith
    • 1
  1. 1.Dynatech R/D CompanyCambridgeUSA

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