Colin Brady

This concept is a backpack-sized, solar powered water desalinator/distiller. Using photovoltaic panels to power a small pump, water is drawn into the heating tank. Solar thermal collectors filled with propylene glycol heat the water to vaporization temperature and the vapor passes through outside air via a plastic tube to the second stage tank.

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The second stage tank is cooled by the incoming water and allows the vapor to condense. Once condensed, the now fresh water can be retrieved through a valve connected to the bottom of the tank.

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This device can produce enough drinkable water for one person per day and features a pressure release valve and outlet port to flush out brine after use.