Numerical evaluation of a solar collector's performance based on its optimal tilt angle
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Abstract
Accurate knowledge of solar irradiation at ground level is essential for optimizing the design of solar energy systems. Proper orientation of solar panels, particularly their tilt angle, plays a key role in maximizing energy capture by ensuring the most effective exposure to sunlight. The tilt angle directly affects system performance and is influenced by various factors such as geographical latitude, local climate conditions, and energy production goals.
This study focuses on estimating the solar irradiation received by an inclined surface under real-world conditions, with particular attention to the influence of tilt angle on solar irradiance. Using numerical models, we analyze how variations in panel inclination affect the amount of solar energy collected, aiming to enhance efficiency and minimize losses due to reflection. The simulation results are compared with experimental data collected in the Ghardaïa region. After validating the models, the optimal tilt angle was determined for different times of the year, providing practical recommendations for maximizing photovoltaic energy production in this specific geographic context.
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