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Modeling Spatio-Temporal Dynamics of Optimum Tilt Angles for Solar Collectors in Turkey
Can Ertekin1, Fatih Evrendilek2, Recep Kulcu3
1Department of Agricultural Machinery, Akdeniz University, Faculty of Agriculture, 07070, Antalya, Turkey. ertekin@akdeniz.edu.tr.
Sensors (Basel, Switzerland)
|November 24, 2016
Summary
Optimizing solar collector tilt angles in Turkey maximizes energy collection. High angles are best in autumn/winter, low angles in summer, based on solar radiation data.
Area of Science:
- Renewable Energy
- Solar Energy Engineering
- Applied Physics
Background:
- Maximizing solar collector performance requires understanding spatial and temporal variations in optimal tilt angles.
- Accurate solar radiation data is crucial for determining optimal collector orientation.
- Previous studies have focused on global solar radiation, but diffuse radiation also impacts performance.
Purpose of the Study:
- To quantify the optimal tilt angles for solar collectors across Turkey.
- To analyze the relationship between solar radiation (global and diffuse) and optimal tilt angles.
- To develop a model for estimating monthly optimum tilt angles based on latitude and day of the year.
Main Methods:
- Collected monthly average daily global solar radiation data from 158 locations in Turkey.
- Estimated monthly diffuse solar radiation using an established empirical model.
- Developed a sinusoidal function incorporating latitude and day of the year to estimate monthly optimum tilt angles.
Main Results:
- Optimal solar collector tilt angles vary significantly with season.
- Higher tilt angles are recommended for autumn and winter months (September-February).
- Lower tilt angles are optimal for spring and summer months (March-August).
Conclusions:
- The study provides a validated method for determining optimal solar collector tilt angles in Turkey.
- The findings can enhance solar energy collection efficiency by adjusting collector orientation seasonally.
- The developed sinusoidal model accurately predicts monthly optimum tilt angles with high R² (98.8%) and low RMSE (2.06°).
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