Reduction of temperature in silicon photovoltaic module using thermal radiation coating
Faculty of Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai Nishi Miyazaki 889-2192, Japan
The temperature of solar cells increases under the actual operating conditions, and the conversion efficiency of solar cells decreases with increasing temperature. In this study, a thermal radiation layer was coated on the back sheet of the PV module by a spray coating method and the effect was evaluated. The thickness of the layer was 30 μm. The temperature of the PV module with the thermal radiation coating was lower than that of the PV module without the thermal radiation coating. And the operating temperature range of the PV module with the thermal radiation coating was decreased by 2~3°C. The open-circuit voltage of the PV module with the thermal radiation coating was 0.1 V higher than that of the module without the coating due to the thermal radiation coating.
© Owned by the authors, published by EDP Sciences, 2016
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