Heat transfer and friction factor correlations for a solar air heater duct roughened artificially with V-ribs with symmetrical gaps

Experimental investigation of heat transfer and friction factor characteristics of solar air heater using wavy delta winglets

Efficiency improvement of solar photovoltaic/solar air collectors by using impingement jets: A review

Heat transfer enhancement of heat exchanger tube with multiple square perforated twisted tape inserts: Experimental investigation and correlation development

Developing heat transfer and friction loss in an impingement jets solar air heater with multiple arc protrusion obstacles

Correlation development for Nusselt number and friction factor of a multiple type V-pattern dimpled obstacles solar air passage