Heat transfer and friction characteristics of dimple-shaped roughness element arranged in angular fashion (arc) on the absorber plate of solar air heater

Thermal and effective efficiency based analysis of discrete V-down rib-roughened solar air heaters

(2011) Sukhmeet Singh et al.   Journal of Renewable and Sustainable Energy

Nusselt number and friction factor correlations for solar air heater duct having artificially roughened absorber plate

(2011) Brij Bhushan et al.   SOLAR ENERGY

Performance prediction of solar air heater having roughened duct provided with transverse and inclined ribs as artificial roughness

(2009) Varun et al.   RENEWABLE ENERGY

Heat transfer and friction factor correlations for a duct having dimple-shape artificial roughness for solar air heaters

(2008) R.P. Saini et al.   ENERGY

Investigation of dimpled fins for heat transfer enhancement in compact heat exchangers

(2007) Mohammad A. Elyyan et al.   INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

Investigation of thermal performance of solar air heater having roughness elements as a combination of inclined and transverse ribs on the absorber plate

(2007) Varun et al.   RENEWABLE ENERGY