• Ronit Kumar

Solar air heaters are commonly utilized in both residential and industrial settings. The researchers were forced to focus on improving the thermal performance of solar air heaters by providing artificial flow modification techniques in the flow field due to the reduced thermal efficiency of solar air heaters. As a result, the laminar sub layer beneath the absorber plate is disturbed, increasing air turbulence. The heat transmission rate from the absorber plate is increased as a result of this. The impact of various shaped tabulators on increasing the thermal performance of air heaters is discussed in this paper. Flow conditions and their impact on turbulence, heat transfer rate, absorber temperature, and the thermo-hydraulic enhancement factor have all been comprehensively examined. Finally, concluding remarks are made, as well as the future potential for improving the performance of solar air heaters. Moreover it is required to understand how flow field is affected by particular roughness geometry so that direction of future researches could be conceived. So as to elucidate the useful findings an attempt has been made to review roughness geometries employed in solar air heaters. This paper covers the types of technique used in enhance heat transfer coefficient in field of heat transfer and review a variety of papers dealing with artificial roughness on heat transfer field.

"A Review on Development of Artificially Roughed Solar Air Heater", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.c6-c11, March-2023, Available :http://www.jetir.org/papers/JETIR2303202.pdf

"A Review on Development of Artificially Roughed Solar Air Heater", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. ppc6-c11, March-2023, Available at : http://www.jetir.org/papers/JETIR2303202.pdf