Passive cooling or enhanced ventilation are proven methods to get photovoltaic panels closer to optimal operating temperatures.
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In addition, Shahsavar et al. studied the effects of using exhaust and ventilation air for cooling photovoltaic panels. The results showed that the exhaust and ventilation air in heating ventilating air conditioning systems can be used as the cooling fluid of PV panels and increase their efficiency.
This review paper provides a thorough analysis of cooling techniques for photovoltaic panels. It encompasses both passive and active cooling methods, including water and air cooling, phase-change materials, and various diverse approaches.
There are two types of PV panel cooling techniques i.e., active and passive. Active cooling of a photovoltaic panel usually requires the use of devices like a pump to circulate water or forced air to eliminate the heat.
Air-based cooling technique PV panels can be cooled by forced and natural flow of air depending on active and passive cooling. Passive cooling is performed by the natural flow of air on a heated surface. While Active cooling is performed by the forced airflow in channels, heat sinks, and fins are attached to the back side of the panel.
As a result, in addition to normal ventilation by the ventilator, the performance of the photovoltaic cell in terms of energy production was improved by up to 46.54 %. In addition, Shahsavar et al. studied the effects of using exhaust and ventilation air for cooling photovoltaic panels.
Optimizing cooling through improved design is a strategic approach for photovoltaic systems. S. Nizetic et al. numerically and experimentally studied a backside convective cooling mechanism.
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