SunGlacier DC02

 

The 20-inch cube of stainless steel is embedded with solar cells that power a refrigeration device, which in turn cools off an inverted cone to create condensation. Gravity then drips accumulated condensate into a glass to provide fresh drinking water. The challenge was to cool down the cone to just above freezing point without using a huge amount of energy. After several trials we managed to achieve that goal with 25 Watts of energy. The small solar panels on the top and sides of the cube produce 40 Watts, which allows to store excess energy in batteries for less sunny conditions. With the SunGlacier team we are doing research to find more solutions for cooling down surfaces in its most efficient way, off-grid, powered by solar, easy to scale up, and cheap to produce. Many people need to enjoy their own source of drinking water in the future, especially in drought-hit areas. Next to this device, we are developing a system that doesn’t have moving parts, perfectly to use for open agriculture. Later more about this new project.

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