Journal
APPLIED ENERGY
Volume 88, Issue 4, Pages 1427-1433Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2010.10.001
Keywords
Solar panel; Solar radiation; Optimum tilt angle; Modeling; Isotropic models; Anisotropic models
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This article analyzes the optimal choice of the tilt angle for the solar panel in order to collect the maximum solar irradiation. In this paper, the collector surface is assumed to be facing toward equator. The study is based upon the measured values of daily global and diffuse solar radiation on a horizontal surface. It is shown that the optimal angle of tilt (beta(opt)) for each month, allows us to collected the maximum solar energy for Madinah site. Annual optimum tilt angle is found to be approximately equal to latitude of the location. It is found that the loss in the amount of collected energy when using the yearly average fixed angle is around 8% compared with the monthly optimum tilt beta(opt). (C) 2010 Elsevier Ltd. All rights reserved.
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