Chemically sprayed PbS coatings for photothermal solar energy conversion

R. C. Agarwal and P. K. C. Pillai

Applied Energy, 1982, vol. 11, issue 1, 68 pages

Abstract: This paper reports on an investigation into the optical and physical properties of PbS coatings prepared by spray pyrolysis on to chemically brightened aluminium substrates. The advantages are low cost, reasonably good selectivity and the coatings' ability to be scaled onto collectors of any desired size. The coatings exhibit a high absorptivity, [alpha] ~ 0·92, in the [`]solar' range and a low emissivity, [var epsilon] (100°C) ~ 0·22, in the [`]thermal' range. Finally, the photothermal conversion efficiencies of black paint-coated and PbS-coated solar collectors are compared.

Date: 1982
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