Monday, January 21st, 2019

Influence of channel depth on the performance of solar air heaters

Publication year: 2010brbSource:/b Energy, In Press, Corrected Proof, Available online 12 August 2010brWei, Sun , Jie, Ji , Wei, HebrIn the design of solar air heaters (SAHs), channel depth is a principal variable to be fixed. In this paper, the effect of the channel depth on the energy gain of type I and type III SAHs has been investigated by computational fluid dynamics (CFD) simulations. Laminar model and k–ω turbulence model of Wilcox are used for the prediction of flow and temperature field in SAHs. Our study shows that the heat transfer corresponding to the temperature distribution across the channel in SAH varies greatly with the change of channel depth. Based on the first and second laws of thermodynamics,…

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