تأثير درجة الحرارة الخارجية على كفاءة منظم جهد يعمل بالطاقة الشمسية
DOI:
https://doi.org/10.35778/jazu.i56.a675Keywords:
Solar panels, Temperatures, Voltage regulator circuits, Photovoltaic energyAbstract
The core idea of this research is to utilize photovoltaic energy for mobile phone charging. This is achieved through an electronic circuit designed to regulate the voltage produced by a solar panel. A polycrystalline silicon solar panel was chosen due to its lower cost and widespread availability. This selection is crucial because solar panels do not provide a stable voltage, whereas mobile phone batteries require a constant voltage for efficient charging. Therefore, the designed circuit is responsible for regulating the input voltage to the mobile phone battery. This research aims to investigate and implement mobile phone charging using photovoltaic energy, as well as to assess the impact of varying ambient temperatures (low and high) on the charging process. Furthermore, it seeks to elucidate how these temperature changes affect the speed and efficiency of mobile phone charging. Through this study, the influence of ambient temperature on the characteristics of the solar panel, and consequently on the mobile phone charging process, became evident. Practical data from the study were compared with theoretical models to validate the findings, and the results showed close agreement between experimental observations and theoretical predictions. It was observed that as the ambient temperature increased, the voltage decreased and the current from the solar panel increased. Mobile phone charging was more efficient with a moderate increase in temperature. Specifically, charging was completed in 2 hours and 40 minutes at an average temperature of 33.8°C, and in 2 hours and 15 minutes at an average temperature of 42.9°C.
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