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Radiant Heat Transfer in Reusable Surface InsulationDuring radiant testing of mullite panels, temperatures in the insulation and support structure exceeded those predicted on the basis of guarded hot plate thermal conductivity tests. Similar results were obtained during arc tunnel tests of mullite specimens. The differences between effective conductivity and guarded hot plate values suggested that radiant transfer through the mullite was occurring. To study the radiant transport, measurements were made of the infrared transmission through various insulating materials and fibers of interest to the shuttle program, using black body sources over the range of 780 to 2000 K. Experimental data were analyzed and scattering coefficients were derived for a variety of materials, fiber diameters, and source temperature.
Document ID
19730024735
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Hughes, T. A.
(McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Linford, R. M. F.
(McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Schmitt, R. J.
(McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Christensen, H. E.
(McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Date Acquired
August 7, 2013
Publication Date
September 1, 1973
Publication Information
Publication: NASA. Ames Res. Center Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 1
Subject Category
Thermodynamics And Combustion
Accession Number
73N33468
Funding Number(s)
CONTRACT_GRANT: NAS8-26115
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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