Determination of optimum fixed and adjustable tilt angles for solar collectors by using typical meteorological year data for Turkey
International Journal of Renewable Energy Research, vol.4, no.4, pp.924-928, 2014 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 4 Issue: 4
- Publication Date: 2014
- Journal Name: International Journal of Renewable Energy Research
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.924-928
- Keywords: Latitude, Optimum, Solar radiation, Tilt angle, Typical Meteorological Year
- Ankara University Affiliated: Yes
Abstract
In this paper the possible optimum fixed and adjustable tilt angles for solar collectors are determined by using Typical Meteorology Year data set for nine main provinces of Turkey. The tilt angle types considered in this paper are monthly adjustment, seasonal adjustment (four times a year), semi annual adjustments (twice a year), optimum fixed tilt angle and an angle equals to the latitude of the area. As a result of this paper it has been observed that up to 6.9 % more solar radiation can be collected by using a monthly adjustment of collectors in comparison with tilt angles equals with the latitude of the area. The optimum angles have been found to range from a minimum of 2° for June up to a maximum of 57° for December for monthly adjustment, the seasonal adjustment angles found to be between 9° and 48°, the semi annual angles are from 18° to 28° and the fixed angles for the provinces are found to be between 13 to 18 degrees less than the latitude of the areas.