A CFD ANALYSIS OF AN ARTIFICIALLY ROUGHENED SOLAR AIR HEATER

Mayank Kumar Dwivedi, Kundan Gupta, Krishna Dutta Pandey, Sanjay Kumar Patel

Abstract


Abstract- This paper presents the study of fluid flow and heat transfer in a plain rectangular duct of a solar air heater by using Computational Fluid Dynamics (CFD). The effect of Reynolds number on heat transfer coefficient and friction factor is investigated. A commercial finite volume package ANSYS FLUENT 12.1 is used to analyze and visualize the nature of the flow across the duct of a solar air heater. CFD simulation results are found to be in good agreement with experimental results and with the standard theoretical approaches. It has been found that the Nusselt number increases with increase in Reynolds number and friction factor decreases with increase in Reynolds number.

Keywords: Energy, Solar Air Heater, Heat transfer, Pressure Drop, CFD.


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