Hoja, o «Leaf» en inglés, es el invento diseñado por Anurag Sarda que convierte el rocío en agua potable. El sistema, de 18 metros de altura, funciona gracias a un panel solar, un regulador de carga, una batería y un módulo termoeléctrico. Así, gracias a la energía solar, se lleva a cabo el proceso de condensación de las gotas de rocío. Estas gotas luego se recogen en una olla de barro. Después, el agua se filtra para separar el recurso hídrico de la arena que pudiera haber. A través de esta Hoja, que más parece un stick de hockey, se pueden recoger hasta 20 litros de agua al día.
Producing water out of thin air and solar power
LEAF is inspired from a natural leaf that produces dew drops on it. Water is artificially generated on it through condensation. The electricity generated through solar energy, helps in cooling the metallic surface on the top of the unit and its temperature is monitored and varied with the help of an electronic circuit. Due to the change in temperature, due drops are generated on its surface and gets collected through the slope surface into the earthen pot.
The water slowly trickles through the sand and at the bottom of it is a layer of sand. The filter has to be removed from time to time to clean it, but otherwise, you've got yourself a low-maintenance water generating unit. On the other hand, the water gets cooled as it is stored in the earthen pot. The LEAF is 18 feet tall and collects 20 liters of water in 24 hours and structurally strong as all the components fit into each other.
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