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Proceedings Paper

Application Of Radiative Cooling For Condensation Irrigation
Author(s): E. M. Lushiku; R. T. Kivaisi
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Paper Abstract

The thermal radiance from the clear sky is weak in the wavelength interval 8-13 μm. A surface material with high emittance in this wavelength interval will cool down to a temperature far below that of the ambience. Cooling powers of 100 Wm-2 can be obtained at near-ambient temperatures. An appliction based on condensation of water from the atmospere is suggested. Initial tests show that about 400 g m-2 can be collected in a single night.

Paper Details

Date Published: 12 December 1989
PDF: 5 pages
Proc. SPIE 1149, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII, (12 December 1989); doi: 10.1117/12.962172
Show Author Affiliations
E. M. Lushiku, University of Dar es Salaam (Tanzania, United Republic of)
R. T. Kivaisi, University of Dar es Salaam (Tanzania, United Republic of)


Published in SPIE Proceedings Vol. 1149:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII
Claes-Goeran Granqvist; Carl M. Lampert, Editor(s)

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