Radiative cooling of TiO2 white paint

Titanium oxide white paint has been found effective in cooling the radiating surface of solar collectors up to 15 C below ambient temperature. Experiments conducted in Calgary, Alberta are described to test TiO2 paint under varying conditions, e.g., clear sky/direct sunlight, intermittent cloud cove...

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Bibliographic Details
Published in:Solar energy 1978, Vol.20 (2), p.185-188
Main Authors: Harrison, A.W., Walton, M.R.
Format: Article
Language:English
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Summary:Titanium oxide white paint has been found effective in cooling the radiating surface of solar collectors up to 15 C below ambient temperature. Experiments conducted in Calgary, Alberta are described to test TiO2 paint under varying conditions, e.g., clear sky/direct sunlight, intermittent cloud cover, clear sky/indirect sunlight, and with varying amounts of atmospheric moisture. Although cooling is recorded in all instances, direct sunlight and elevated moisture levels were found to hinder performance.
ISSN:0038-092X
DOI:10.1016/0038-092X(78)90195-0