Energy, Exergy and Economic Analysis of Solar Air Heaters with Different Roughness Geometries

Document Type : Original Article

Authors

Daneshgah St.

Abstract

Artificially roughened surface is a comon method to enhance the heat transfer in a flow passage. Energy, exergy and economic analysis of solar air heaters with different roughness geometries have been done. To improve the performance of the solar collector, 4 different types of roughness on the absorber plate have been used. It was found that the most efficient roughness is Discrete V Rib and the least expensive roughness is U-Shape turbulator. NSGA II and TOPSIS algorithms used to select the best roughness geometry.

Keywords

Journal of Solar Energy Research
Volume 5, Issue 2
May 2020
Pages 390-399

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