24 September 1986 Transparent Thermal Insulation With Infrared-Absorbing Gases
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Proceedings Volume 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V; (1986); doi: 10.1117/12.938311
Event: 1986 International Symposium/Innsbruck, 1986, Innsbruck, Austria
Abstract
We investigate the radiative heat transfer between blackbody-like surfaces confining an infrared-absorbing gas layer. Spectrophotometric measurements on selected gases lead us to optimized compositions with sulfur hexafluoride, propyne, and different freons. Theoretically, the gas is able to diminish the radiative heat flux across a 1 cm thick slab by a factor - 0.7 in comparison with the case of a non-absorbing medium. Infrared-absorbing gases seem to offer interesting possibilities for improved transparent thermal insulation of windows.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T S Eriksson, C G Granqvist, J Karlsson, "Transparent Thermal Insulation With Infrared-Absorbing Gases", Proc. SPIE 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V, (24 September 1986); doi: 10.1117/12.938311; https://doi.org/10.1117/12.938311
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KEYWORDS
Gases

Infrared radiation

Transmittance

Absorption

Thermography

Sulfur

Radiative energy transfer

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