University students and professors design a wall that automatically cools itself using zero energy

October 17, 2014

A team of students and professors from Barcelona’s Institute for Advanced Architecture of Catalonia is developing a wall that cools as temperature rises.

The result may be a breakthrough in green home design as it will allow the elimination of energy-hogging air-conditioning  systems. The wall uses a material called hydrogel that swells to 400 times its size when placed in water. The wall will slowly evaporate in hot weather, cooling the indoor air by about 9 or 10 degrees, Fast Co. Exist reports.

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