Investigation on extraction of waste thermal energy from solar pv panels

Abstract

The temperature of PV modules increases when it absorbs solar radiation, causing decrease in its efficiency Because of negative temperature coefficient. The Efficiency drops with the rise in temperature, with a magnitude of approximately 0.5 % per °C. This present paper gives the possibilities of extraction of waste thermal energy from the solar panel to maintain its efficiency and to obtain hot water as byproduct. The extracted heat can be used for many domestic applications. Computational fluid dynamics (CFD) analysis using Ansys fluent was done .The outlet water temperature is observed with significant rise in temperature