研究目的

The main goal of this review paper is to provide information about the importance of a rib molded on: (a) Different shaped ribs, (b) the location of the rib by varying the Pitch distance, (c) height variation between two ribs, and (d) using multiple ribs mounted in inline and staggered methods.

研究成果

Artificial roughness in solar air heaters results in better heat transfer and a reduced friction factor effect in SAH. The modified geometry of multiple V-shaped ribs with an inclined attack angle of 60° gives maximum thermal enhancement compared to the smooth duct. Discrete V-Down ribs suggest increasing the efficiency of pumping power to solar air heaters. Investigational studies show that a Discrete Multiple V shape with a staggered rib gives the best overall thermal performances.

研究不足

The technical and application constraints of the experiments include the need for optimization in rib shapes and configurations to further enhance heat transfer and reduce friction factor effects in SAH.