Determination of Optimal Tilt Angle for Biannual Seasonally Adjusted Flat-Plate Photovoltaic Modules Based on Perez Transposition Model
American Journal of Software Engineering and Applications
Volume 6, Issue 3, June 2017, Pages: 85-92
Received: Jan. 3, 2017; Accepted: Jan. 10, 2017; Published: Jun. 12, 2017
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Authors
Okon Dominic Ekanem, Department of Electrical/Electronic Engineering, Federal University of Technology Owerri (FUTO), Owerri, Nigeria
James O. Onojo, Department of Electrical/Electronic Engineering, Federal University of Technology Owerri (FUTO), Owerri, Nigeria
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Abstract
Determination of optimal tilt angle for seasonally adjusted flat-plate photovoltaic (PV) modules based on Perez transposition model is presented. Particularly, two seasons are considered, namely winter and summer. As such, two optimal tilt angles are obtained which requires that the tilt angle the of flat plate PV module will be adjusted twice in a year. The method is based on yearly global radiation incident on a horizontal plane as downloaded from NASA website. Furthermore, PVSyst software that uses transposition model is used to generate the yearly global radiation incident on a tilted plane for various tilt angles, from 0° to 46°. The location used in the study is at longitude of 7.860761, latitude of 5.011474 and elevation of 67.506 m. The results show that the winter season optimal tilt angle is 25.46° the summer season optimal tilt angle is 0° and the yearly fixed optimal tilt angle is 7.16°. The annual transposition factor for the seasonally adjusted tilt angle is 1.05 whereas annual transposition factor for the year fixed tilt angle 1.01. The result amounts to 3.6% improvement is solar radiation capture due to the seasonal adjustment of the tilt angle when compare to the yearly fixed tilt angle.
Keywords
Optimal Tilt Angle, Global Solar Radiation, PVSyst Software, Transposition Factor, Yearly Fixed Tile Angle, Seasonally Adjusted Tilt Angle
To cite this article
Okon Dominic Ekanem, James O. Onojo, Determination of Optimal Tilt Angle for Biannual Seasonally Adjusted Flat-Plate Photovoltaic Modules Based on Perez Transposition Model, American Journal of Software Engineering and Applications. Vol. 6, No. 3, 2017, pp. 85-92. doi: 10.11648/j.ajsea.20170603.15
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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