This study investigates the influence of fins and baffles attached over the absorber plate on the performance of the upward type single pass solar air heater. A steady-state mathematical model is presented and solved theoretically. The performance evaluation is studied in terms of different...

A comparative study of various types of artificial roughness geometries in the absorber plate of solar air heater duct and their characteristics, investigated for the heat transfer and friction characteristics, has been presented. The performance evaluation in terms of ηI, ηef and ηII has...