A COMPUTATIONAL FLUID DYNAMICS STUDY ON FLOW PATTERNS IN A SOLAR AIR HEATER WITH ARTIFICIAL ROUGHNESS
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A COMPUTATIONAL FLUID DYNAMICS STUDY ON FLOW PATTERNS IN A SOLAR AIR HEATER WITH ARTIFICIAL ROUGHNESS1Anshu Kumar Tiwari, 2Inder Singh Nagar M.Tech Scholor1, Assistant Professor2 1,2Department of Mechanical Engineering 1,2School of Research And Technology, People’s University, Bhopal (M.P.) |
Abstract : Solar air heaters, renowned for their simplicity in design, offer an economical solution and stand as the most prevalent solar energy collection devices. However, their thermal efficiency is notably diminished due to the relatively low convective heat transfer coefficient between the absorber plate and the air, resulting in elevated absorber plate temperatures and substantial heat loss to the surroundings. This study delves into the intricacies of heat transfer within a solar air heater utilizing Computational Fluid Dynamics (CFD). Specifically, it examines the impact of Reynolds number variation on Nusselt number. The investigation employs ANSYS FLUENT 16, a commercial finite volume package, to analyze and visually depict the flow characteristics within the duct of the solar air heater.
Index Terms : Solar Air Heater, Heat transfer, Pressure Drop, CFD.
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