Complejidad y sistemas complejos

Abstract

The performance of a solar radiation conversion system is affected by its tilt angle with the horizontal plane, thus photovoltaic array need to be tilted at the correct angle to maximize the performance of the System, This paper deals with the determination of optimum tilt angle for solar PV array in order to maximize incident solar irradiance. The model starts by calculating the monthly averaged daily solar irradiation components (direct, diffuse, ground-reflected) absorbed by the solar PV array of varying tilt, for this purpose Khatkar Kalan (Punjab) is selected (latitude=31.06) where the photovoltaic arrays are installed. It is found that the optimum tilt angle changes between 60.5 • (January) and 62.5 • (December) throughout the year. In winter (December, January, and February) the tilt should be 57.48 • , in spring (March, April, and May) 18.16 • , in summer (June, July, and August) 2.83 • , and in autumn (September, October, and November) 43.67 • . The yearly average of this value was found to be 30.61 • which is nearly equal to the angle selected at Khatkar Kalan.