3D comparative study of the thermodynamics of fluid flow and an analysis of heat transfer by convection in different flat air solar collectors

Abstract

The article shows a 3D analysis using CFD (computer simulation software) software.that resolves turbulent flow in the three types of devices for increasing air temperature which are named panel works by sun with transverse obstacles and small circular obstacle (SCTBSC), panel works by sun with different lengths of transverse baffles (SCDLTB) and Solar collector with transverse baffles (SCTB). This comparative study analyzes the thermodynamic behavior in air streams equipped with different baffles. The effect of reducing the flow passage surface caused by the baffles will increase the airspeed by 832%, 850%, and 1552% compared to the inlet speed for (SCTBSC), (SCDLTB) and (SCTB), respectively.