Abstract
The performance of photovoltaic (PV) panel having staggered metal foam fins was examined experimentally in Baghdad, Iraq. Three staggered metal foam fin configurations attached to the backside of the PV panel were studied. The measured parameters were front and back surfaces temperature, open voltage and current circuits, maximum power, and PV efficiency. It was noted that the maximum electrical efficiency enhancement was 4.7% for staggered metal foam fins (case III) than the reference PV panel. The operating temperature of the cell was increased when the value of solar intensity was high. Thereby, the electrical efficiency was decreased. It was found that the metal foam fins decreased the PV temperature by 2-3 oC.
Highlights
PV panel represents the primary type of the solar energy exploitation system
It was found that the PV temperature reduced by 12%, and electrical efficiency improved by 14%
The results showed an increase in the output power by 1.87 W and improving electrical efficiency by 1.77%
Summary
PV panel represents the primary type of the solar energy exploitation system. It attracts solar radiation at the cell to convert it into electrical power. Metal foam fins with closed-cell were equipped with the back surface of the PV panel has been examined by Slimefendigil et al (Selimefendigil et al, 2018). Chen et al, 2014) examined the influence of weather conditions like solar irradiance, wind speed, and ambient temperature besides the finned cooling on the electrical efficiency of the PV panel. The results showed that the cooling by fins reducing the temperature by 4.2% and increasing the output power by 5.5%. The results indicate that the addition of ten longitudinal fins can reduce the average PV panel temperature by about 8.4% and improve the power output by an average of 4.9%. The present work aims to examine the influence of staggered metal foam fins with different configurations on the electrical efficiency and operating temperature of the PV panel. The tests are implemented under natural convection, and the fins are equipped on the back surface of the PV panel
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