Radiative Heat Transfer in Fibrous Insulations—Part II: Experimental Study

[+] Author and Article Information
T. W. Tong

Department of Mechanical Engineering, University of Kentucky, Lexington, Ky. 40506

Q. S. Yang, C. L. Tien

Department of Mechanical Engineering, University of California, Berkeley, Calif. 94720

J. Heat Transfer 105(1), 76-81 (Feb 01, 1983) (6 pages) doi:10.1115/1.3245562 History: Received February 05, 1982; Online October 20, 2009


Two experiments have been conducted to study radiative heat transfer in lightweight fibrous insulations (LWFI). The spectral extinction coefficients for a commercial LWFI have been measured via transmission measurements, and a guarded hot plate apparatus has been used to measure the radiant heat flux as well as the total heat flux in the insulation. The experimental results are compared with the theoretical values calculated according to the analytical models presented in Part I of this paper. The comparisons reveal that the analytical models are useful in giving representative values for the radiative properties of typical LWFI. However, only qualitative agreements have been obtained for the heat transfer results.

Copyright © 1983 by ASME
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