Title of article
A review on roughness geometry used in solar air heaters
Author/Authors
Varun a، نويسنده , , R.P. Saini، نويسنده , , S.K. Singal، نويسنده , , *، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2007
Pages
11
From page
1340
To page
1350
Abstract
The use of an artificial roughness on a surface is an effective technique to enhance the rate of heat transfer to fluid flow in the duct of a
solar air heater. Number of geometries of roughness elements has been investigated on the heat transfer and friction characteristics of
solar air heater ducts. In this paper an attempt has been made to review on element geometries used as artificial roughness in solar air
heaters in order to improve the heat transfer capability of solar air heater ducts. The correlations developed for heat transfer and friction
factor in roughened ducts of solar air heaters by various investigators have been reviewed and presented.
2007 Elsevier Ltd. All rights reserved
Keywords
Friction factor , solar air heater , Artificial roughness , Heat transfer , Effective efficiency
Journal title
Solar Energy
Serial Year
2007
Journal title
Solar Energy
Record number
939867
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