Home > Press > Nanostructured Surfaces Increase Efficiency of Solar Thermal Systems
Abstract:
Iranian researchers from Isfahan University of Technology succeeded in the laboratorial production of light sorption surfaces that have application in solar thermal systems.
Nanostructured Surfaces Increase Efficiency of Solar Thermal Systems
Tehran, Iran | Posted on December 8th, 2015The surfaces have higher sorption but lower dispatch in comparison with other usual sorption surfaces; therefore, these surfaces have higher efficiency in solar systems.
The aim of the research was to produce a black sorption surface by using optimized properties to be used in solar collectors. The surface has been produced through deposition of nanostructured film on metallic substrates.
Based on the results obtained from previous studies, electroless nickel/black phosphor coatings have desirable optical properties, and they have wide application in optical collectors. Therefore, the aim of the research was to optimize these coatings. Nanostructured surfaces were synthesized to this end to boost efficiency of solar systems by increasing the amount of sorption and by decreasing the dispatch.
Sorption sheets should be spectrum selected to optimize the performance of collectors. In this research, electroless nickel/black phosphor coating and black anodized coating were placed on aluminum surface after the preparation to obtain the optimized properties. Then, alumina nanoporous layer were created with various thicknesses on the surface of the samples to optimize the coating of nanostructured layer of alumina and nickel/phosphor through anodizing process. The samples were next placed in electroless bath to create the second coating on the samples.
Results of the research have been published in Thin Solid Films, vol. 592, Part A, 2015, pp. 88-93.
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