The effect of artificial roughness on performance of solar air heater (SAH): A review study

Abstract

Solar air heaters (SAHs) are the most widely used and inexpensive solar energy systems. As the absorbing plate collects solar radiation and transfers heat energy to the passing air, many effective experimental and analytical studies have been conducted on the SAH roughness solar heaters by a number of researchers. The artificial roughness elements that break down the laminar sub-layer at the surface of the absorber plate are detailed in this work in order to optimize heat transfer absorption in the solar air heater duct. in this paper. In this example, we'll look at how different forms of synthetic roughness affect performance and heat transfer. The experiments on this page show how the shape and type of synthetic roughness and its many properties can improve the performance of solar air heaters.