steel support structure and its key design parameters, calculation method, and finite element analysis (FEA) detailed with a case study on a solar power plant in Turkey are described to
F.B. Abed / Dicle Üniversitesi Fen Bilimleri Enstitüsü Dergisi 12 (1) (2023) 27-48 30 from 30o on 1 January to 76.1o on July [19]. Rauf et al. [20], presented a new model for
The preeminent slope angle of solar panels is an important determinant of falling solar radiation on the surface of photovoltaic panels. Characteristics of the position of latitude, the sun, and local geography must be explained and understood to determine the slope angle correctly.
(vi) The tilt angle that maximizes the total photovoltaic modules area has a great influence on the optimum tilt angle that maximizes the energy.
Ulgen calculated the optimum tilt angle and its power for Izmir, Turkey. The results showed that annual tilt angle and its power were 30.3° and 6397 Mj/m 2 year for a south facing solar panel (Ulgen 2006). Using a mathematical model, Kacira et al. investigated the monthly optimum tilt angle for south facing for Sanliurfa, Turkey.
Finally results showed that the optimum slope angle that equal to latitude does not give a maximum energy power. They concluded that the optimum tilt angle was approximately equal to the latitude (Adama et al. 2021). Monica et al. calculated the annual optimum tilt angle by using several mathematic models.
Bari described a method of determining the best slope angle and direction in the Malaysian territory. In this method, they used diffuse and the direct components of solar radiation. They calculated the lineal solar radiation depending on the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standard clear sky.
The results of the study showed that the best slope angle changes throughout the year between 13° in June to 61° in December. Ulgen calculated the best slope angle for building applications by detecting the utmost value of total radiation on the panel.
