Optimization of Tilt Angle for Solar Collectors: A Case Study for Bursa, Turkey
Authors: N. Arslanoglu
This paper deals with the optimum tilt angle for the solar collector in order to collect the maximum solar radiation. The optimum angle for tilted surfaces varying from 0◦ to 90◦ in steps of 1◦ was computed. In present study, a theoretical model is used to predict the global solar radiation on a tilted surface and to obtain the optimum tilt angle for a solar collector in Bursa, Turkey. Global solar energy radiation on the solar collector surface with an optimum tilt angle is calculated for specific periods. It is determined that the optimum slope angle varies between 0◦ (June) and 59◦ (December) throughout the year. In winter (December, January, and February) the tilt should be 55◦, in spring (March, April, and May) 19.6◦, in summer (June, July, and August) 5.6◦, and in autumn (September, October, and November) 44.3◦. The yearly average of this value was obtained to be 31.1◦ and this would be the optimum fixed slope throughout the year.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124007Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1155
 H, Heywood, “Operational experience with solar water heating,” J. Inst. Heat Vent Energy, 1971, Vol. 39, pp.63-69
 P.J, Lunde, P. J. 1980. Solar Thermal Engineering. New York: Wiley.
 H. P, Garg, 1982. Treatise on Solar Energy: Volume 1: Fundamentals of Solar Energy. New York: Wiley.
 J. A, Duffie, and W. A. Beckman, 1991. Solar Engineering of Thermal Processes. New York: Wiley.
 J, Kern, and L, Harris, “On the optimum tilt of a solar collector.” Solar Energy, 1975, Vol. 17, pp. 97–102.
 M, Iqbal, “Optimum collector slope for residential heating in adverse climates,” Solar Energy, 1979, pp. 22:77.
 J. P, Chiou, and M. M, El-Naggar, “Optimum slope for solar insolation on flat surface tilted toward the equator in heating season,” Solar Energy, 1986, Vol. 36, pp. 471–478.
 M.M, Elsayed, “Optimum orientation of absorber plates,” Solar Energy, 1989, Vol. 42, pp. 89–102.
 M.A bin H.M, Yakup, and A.Q, Malik, “Optimum tilt angle and orientation for solar collector in Brunei Darussalam,” Renewable Energy, 2001, Vol. 24, pp. 223–234.
 K, Ulgen. “Optimum Tilt Angle for Solar Collectors,” Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2006, Vol.28, pp. 1171-1180.
 M. Benghanem,” Optimization of tilt angle for solar panel: Case study for Madinah, Saudi Arabia,” Applied Energy, 2011, Vol. 88, pp. 1427-1433.
 H, Gunerhan and A, Hepbasli, “Determination of the Optimum Tilt Angle of Solar Collectors for Building Applications.” Building and Environment. 2007, Vol. 42, pp.779 – 783.
 A, Yigit, I, Atmaca, 2010 Solar Energy (Güneş Enerjisi).: Alfa-Aktüel Yayınları; (in Turkish). Bursa, Turkey.
 J.K, Page, “The estimation of monthly mean values of daily total short-wave radiation on vertical and inclined surfaces from sunshine records for latitudes40_N–40_S,” In: Proceedings of UN conference on new sources of energy, vol. 4, August 21–31, Rome, Italy, United Nations, Paper No. 598; 1961. p. 378–90.
 B.Y.H, Liu, R.C. Jordan, “The relationship and characteristics distribution of direct diffuse and total radiation,” Solar Energy, 1960; Vol. 4, pp.1–19.