Water droplets that fall on PV modules roll quickly along the surface of the module to remove dust from the module. Super-hydrophobic coatings do not conflict with other dust removal methods, and are better if combined with other dust removal methods.
The soluble salt in dust particles will cause serious corrosion to photovoltaic modules, and the service life will be shortened after being dissolved by water [5, 45, 56, 72]. Water gives dust a hygroscopic or soluble component. Dewdrop promotes the agglomeration of dust particles through capillary force.
The main method of dust removal is manual or machine cleaning with water, but these methods have high costs and low cleaning efficiency [1, 21, 31]. It is worth noting that an improper cleaning process can cause mechanical and corrosive damage to photovoltaic modules. In areas where water is scarce, only mechanical methods can be used [79, 80].
At present, the PV cleaning methods are mainly natural cleaning, manual cleaning, mechanical cleaning, and self-cleaning. The improper cleaning methods will not only lead to incomplete cleaning but also destroy photovoltaic panels. In desert areas, mechanical cleaning is chosen by most of the PV plants due to the lack of water resources.
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For a photovoltaic module with area S and dust deposition density RD, the water consumption V of droplet rolling dust removal with volume Vd is determined by the number of
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As the photovoltaic (PV) industry continues to evolve, advancements in How to remove water droplets on photovoltaic panels have become critical to optimizing the utilization of renewable
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Water droplets that fall on PV modules roll quickly along the surface of the module to remove dust from the module. The residual probability of droplets on photovoltaic modules is
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