A research team at DGIST in South Korea has unveiled an ingenious device that enhances solarby keeping panels free of dust and other contaminants. Harnessing wind power, this self-cleaning device autonomously maintains a vital component of the clean energy revolution.Solar energy is vital for a sustainable future, but dust, debris, and other environmental contaminants can create a layer of grime that dramatically reducesefficiency.
An electrodynamic screen based on a frictional charging power generation device developed by a research team. The core element is a triboelectric nanogenerator . This technology generates high-voltage electricity by harnessing the frictional energy of wind, turning a small rotor. Faster wind speeds lead to much higher voltage output, with tests showing up to 2,300 volts generated.
Remarkably, this device channels energy usually lost to friction into cleaning the very solar panels that help generate power. In tests, solar cell efficiency was restored by at least 90% after the self-powered EDS removed grime and dust. Dr. Lee emphasizes the importance of this work: “We’ve found a way to turn abundant wind energy into a tool to maintain panel’s cell efficiency. This is a major step towards ensuring solar power remains a dominant solution for a cleaner future.”Scientists can repurpose millions of tons of winemaking waste — here’s how
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Fonte: cleantechnica - 🏆 565. / 51 Leggi di più »