Evaluation of an Experimental Study on Mitigation of Soiling Loss on Photovoltaic Modules through the Use of Electrostatic Cleaning

Öz

This study analyses an electrostatic cleaning system designed for a photovoltaic module. A folding grid structure was designed with copper conductors placed perpendicular to each other on positive and negative poles. Three variables—voltage, amount of dust and operation time of the cleaning process—were analysed within this study. It was observed that the applied voltage is the most determinative factor for the cleaning performance. It was determined that as the voltage amount is increased, the cleaning efficiency also increases. 2.5 kV, 3 kV and 3.5 kV voltages were applied to the copper conductors during the cleaning process with 30 g/m2 dust and 3 minutes. The obtained cleaning efficiencies were 59.52%, 71.39% and 83.36%, respectively. The best cleaning efficiency was obtained for a certain range of dust amount. After 3 min. of cleaning process, the increase of efficiency can be considered negligible.

Anahtar Kelimeler

• Photovoltaic Power Systems
• Soiling Effects on Photovoltaic Panels
• Electrostatic Cleaning

Fotovoltaik Modüllerde Elektrostatik Temizleme Yöntemiyle Tozlanma Kayıplarının Azaltılması Üzerine Deneysel Bir Çalışmanın Değerlendirilmesi

Öz

Bu çalışma, bir fotovoltaik modül için tasarlanmış bir elektrostatik temizleme sistemini analiz etmektedir. Elektrostatik temizleme yönteminin performansını değerlendirmek için katlanır bir ızgara mekanizması oluşturulmuştur. Bu mekanizmaya yerleştirilen iletkenler, artı ve eksi kutuplar birbirine dik olacak şekilde konumlandırılmıştır. Çalışma kapsamında gerilim, toz yoğunluğu ve temizleme işleminin süresi olmak üzere üç değişken analiz edilmiştir. Uygulanan gerilimin temizleme performansı için en belirleyici faktör olduğu görülmüştür. Gerilim miktarı yükseltildikçe, temizleme veriminin de arttığı tespit edilmiştir. 30 g/m2 toz ve 3 dk. boyunca yapılan temizleme işlemlerinde bakır iletkenlere 2,5 kV, 3 kV ve 3,5 kV gerilim uygulanmıştır. Elde edilen temizleme verimleri sırasıyla % 59,52, % 71,39 ve % 83,36’dır. En iyi temizleme verimi ise belirli bir toz yoğunluğunda (30 g/m2) ortaya çıkmıştır. Üç dakikayı aşan temizleme sürelerinde verim artışı ihmal edilebilir seviyededir.

Anahtar Kelimeler

• Fotovoltaik Güç Sistemleri
• Fotovoltaik Panellerde Kirlilik Etkisi
• Elektrostatik Temizleme
• Photovoltaic Power Systems
• Soiling Effects on Photovoltaic Panels
• Electrostatic Cleaning

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