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Proceedings Paper

Materials For Radiative Cooling To Low Temperatures
Author(s): T. S. Eriksson; E. M. Lushiku; C . G. Granqvist
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Paper Abstract

The clear sky can act as a heat sink. Cooling to low temperatures is possible with materials which are strongly emitting in the 8-13-μm band and non-absorbing elsewhere. In this paper we discuss the resource for radiative cooling and its implementation with thin solid films (Si00.6N0.2 coatings on Al) and with slabs of certain gases (C2H4, C2H40, and NH3 backed by Al). Results are given on spectrophotometric infrared reflectance and transmittance, computed parameters which govern the predicted cooling performance, and some preliminary field tests.

Paper Details

Date Published: 1 December 1983
PDF: 7 pages
Proc. SPIE 0428, Optical Materials and Process Technology for Energy Efficiency and Solar Applications, (1 December 1983); doi: 10.1117/12.936308
Show Author Affiliations
T. S. Eriksson, Chalmers University of Technology (Sweden)
E. M. Lushiku, Chalmers University of Technology (Sweden)
C . G. Granqvist, Chalmers University of Technology (Sweden)


Published in SPIE Proceedings Vol. 0428:
Optical Materials and Process Technology for Energy Efficiency and Solar Applications
Carl M. Lampert, Editor(s)

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