تأثير الرطوبة، درجة الحرارة والإشعاع الشمسي الكلي على كفاءة اللوح الكهروشمسي متعدد البلورة في مدينة دهوك: دراسة في المناخ التطبيقي

Abstract EN

Humidity, temperature and total solar radiation are among the factors affecting the performance of the solar panel systems.

this research presents the effect of these factors on the efficiency of the polycrystalline solar panel under the climatic conditions of the city of Duhok, and the effect of relative humidity on solar radiation and temperature has been practically verified.

the results of the practical study showed that the relationship between relative humidity and solar radiation is a strong non-linear relationship (R2 = 0.858), since it is an inverse relationship during morning hours, while it became direct relationship during the afternoon hours.

additionally, the relationship between solar irradiance and the efficiency of the photovoltaic panel is a normal exponential relationship (r2 = 0.6317), while the relationship between the solar radiation and the maximum power of the solar panel is a strong direct linear relationship (R2 955).

Furthermore, the relationship between the temperature of the PV panel and the percentage of efficiency loss is a complete direct relationship, as this percentage increases by (0.4695%) for every one temperature rise above (25 °C).