 Spectrally selective copper oxide filmsJ.Vaidyanatha Iyer, S.B. Gadgil, R. Thangaraj, A.K. Sharma, B.K. Gupta and O.P. Agnihotri Applied Energy, 1983, vol. 14, issue 1, 65-75 Abstract: Copper oxide coatings have been produced on aluminium substrates by the spray pyrolysis technique. Studies have been carried out to observe the variations of solar absorptance ([alpha]S) and thermal emittance ([epsilon]T) with different concentrations of the spraying solution for different coating thicknesses. The effect of baking temperature on the optical properties of the coatings has also been studied. Under optimum conditions, with a baking temperature of 350°C and a spray concentration of 0·005m, a solar absorptance of 0·90 with a corresponding thermal emittance of 0·15 is obtained for a film 1·35 [mu]m thick. Structural studies carried out with X-ray diffraction and electron diffraction techniques have shown that the monovalent oxide CuO is the clear dominating constituent of the oxide layer with a small percentage of the divalent Cu2O. The stagnation temperature measurements give a maximum stagnation temperature of 120·8°C for the selective surface whereas, under identical conditions, it is 106·8°C for a non-selective black surface. Date: 1983 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:14:y:1983:i:1:p:65-75 Ordering information: This journal article can be ordered from Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.