Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/3757
Title: Solar selective coatings
Authors: Yianoulis, Panayiotis, 
Giannouli, Myrsini 
Kalogirou, Soteris A. 
Yianoulis, Panayiotis, 
Keywords: Interference stacks;Metal particles in a ceramic matrix;Photothermal conversion;Selective absorbing surfaces;Selective coatings;Solar energy conversion;Solar energy selective absorbers;Solar selective coatings;Spectrally selective coatings;Tandem stacks
Category: Environmental Engineering
Field: Engineering and Technology
Issue Date: 2012
Publisher: Elsevier Ltd
Source: Comprehensive Renewable Energy, 2012, Volume 3: Solar Thermal Systems: Components and Applications, Pages 301-312
Abstract: Solar selective coatings are used on photothermal absorbers of solar systems. They enhance the efficiency of photothermal conversion, especially at elevated temperatures, by the reduction of thermal radiation losses. The spectral selectivity of the absorber is determined by its high 'absorptance'.a in the short-wavelength region of the solar radiation of about 0.3-3. mm and low 'emittance' e at the far-infrared region of the spectrum corresponding to the blackbody thermal emittance at the operating temperature of the absorber. Typical values for these properties of selective surfaces are 0.90 for absorptance and 0.10 for the emittance. 'Selectivity' is defined as the ratioa/ε.
URI: http://ktisis.cut.ac.cy/handle/10488/3757
DOI: http://dx.doi.org/10.1016/B978-0-08-087872-0.00309-7
Rights: © Elsevier Ltd.
Type: Book Chapter
Appears in Collections:Κεφάλαια βιβλίων/Book chapters

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