Dutch company SunGlacier has built a device that collects water in hot and dry environments, such as here, in a desert in Mali where the company did some tests recently. SunGlacier’s Desert Twins harvester relies on condensation, as they explain, like the drops of water that appear on a soft drink can taken out of the fridge on a hot summer day. “The harvester comprises two separate devices – an energy unit, which draws and stores power from solar panels, and the water maker, which uses this energy to cool down a metal plate.”
Although the device was tested successfully in the Netherlands, the extreme environment of the Sahara Desert caused units to overheat and stop working, as well as water to evaporate within minutes of the harvester being opened. After a few days, they succeeded in cooling the ambient air inside the box so that condensation could take place and something other than steam was possible.
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