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Tue, 23rd Jun 2020 12:37:00 |
Self-cleaning PV system with active cooling tech |
An international research group has developed a self-cooling PV system featuring a 250 W 60-cell polycrystalline module and a thermal collector attached to the back side of the panel. The cleaning tech is based on a microcontroller programmable integrated circuit, which controls a rotating DC motor.
Researchers from Malaysia's Sunway University, the University of Malaya, China's Peking University, and India's Shri Mata Vaishno Devi University have developed a PV system equipped with an active cooling system and cleaning technology. The two systems were designed and attached to the solar panel separately.
The PV system consists of a 250 W 60-cell polycrystalline module and a thermal collector attached to the back side of the panel, with the collector ensuring maximum coverage of the PV module’s heated surface. The collector was made with copper pipes placed on the back of the panel in a double-serpentine configuration, by utilizing copper retainers and thermally conductive paste.
The researchers tested five different phase-change materials (PCM) to cool the panel. They found that lauric acid offered the best results, partly due to its high melting point.
The cleaning technology is based on a microcontroller programmable integrated circuit (IC), which controls a DC motor that rotates in a forward or reverse position. There are two different motors – one to power a small water pump and a 24V-2A DC motor that moves a cleaner on the surface of the PV panel.
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