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Effect of Various Artificial Roughnesses on Solar Air Heater Performance

Journal: International Research Journal of Advanced Engineering and Science (IRJAES) (Vol.3, No. 4)

Publication Date:

Authors : ;

Page : 67-72

Keywords : Nusselt number; Inclined and transverse ribs; V shaped rib; Roughness; Solar air heater; Friction factor; Efficiency.;

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Many researchers have been conducting various experiments to improve heat transfer rate for solar air heater. Heat transfer rate can be increased by providing various artificial roughnesses to collector plate. By providing the various types of roughness like dimple, v shaped rib roughness on absorber plate inclined as well as the transverse rib on absorber plate. By using heat transfer coefficient the roughness number is fiend out and to decide that the actual now many heat transfer rate is increase. In this paper a review of different heat transfer enhancement techniques have been summarized.

Last modified: 2018-12-26 23:12:22