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Journal of Sustainable Development of Energy, Water and Environment Systems, Vol. 8 No. 4, 2020.

Original scientific paper

https://doi.org/10.13044/j.sdewes.d8.0329

Influence of Electrical Yield on Temperature Drop of the PhotovoltaicPanel: Numerical and Experimental Findings

Filip Grubišić-Čabo orcid id orcid.org/0000-0003-1009-5747 ; Include Ltd., Research and Development Department, Don Frane Bulica 183a, 21210 Solin, Croatia
Sandro Nižetić orcid id orcid.org/0000-0001-6896-4605 ; Laboratory for Thermodynamics and Energy Efficiency, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boskovica 32, 21000 Split, Croatia
Ivo Marinić Kragić ; Laboratory of Numerical Modeling and Computer Application, Faculty of Electrical and Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boskovica 32, 21000 Split, Croatia
Tonko Garma ; Power Engineering Department, Faculty of Electrical and Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boskovica 32, 21000 Split, Croatia

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Abstract

This manuscript deals in confirmation of drop in photovoltaic panel temperature under load. Two panels are compared, one with the load and other without the load. The panel under load should have larger heat dissipation (i.e. be cooler), when electrical yield is taken as an outgoing heat flow. During the experiment, a thermovision of the panels under solar irradiance was made with the thermal camera. Results of the first case show only minor change in panel temperature. Results of the second case, where one panel is under load, show reduced temperature of loaded panel, by up to 4 °C.
Previously developed numerical model is updated with the measured data in the experiment. A measured electrical yield is taken into the account when the solar irradiance was modelled. Numerical model confirms the temperature drop and corresponds with infrared thermography data. Gained results can help in design of the
photovoltaic systems, where more variants of operating conditions can be used in order to keep the panel on desired operating temperature.

Keywords

Photovoltaic; Operating temperature; Thermal imaging; Photovoltaic/Thermal; Experimental.

Hrčak ID:

241175

URI

https://hrcak.srce.hr/241175

Publication date:

31.12.2020.

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