@article { author = {Shadi, Milad and Davodabadi Farahani, Somayeh and Hajizadeh Aghdam, Abolfazl}, title = {Energy, Exergy and Economic Analysis of Solar Air Heaters with Different Roughness Geometries}, journal = {Journal of Solar Energy Research}, volume = {5}, number = {2}, pages = {390-399}, year = {2020}, publisher = {University of Tehran}, issn = {2588-3097}, eissn = {2588-3100}, doi = {10.22059/jser.2020.297646.1142}, 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 = {Solar air heater,Exergy,Annual Cost,Roughness,NSGA II}, url = {https://jser.ut.ac.ir/article_75934.html}, eprint = {https://jser.ut.ac.ir/article_75934_220e2351cf8b11baa940a66825e401bb.pdf} }