Want to have cool air like AC in your house with zero electric? Look in how

NewsBharati    20-Aug-2018
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Mumbai, August 20: Scorching summer heat leads to burden on our pockets as we tend to buy Air Conditioners which will rise up the numbers on our electricity bill amount and even it would affect our environment too but science has created something which will give your room same temperatures as Ac gives without any electricity and any kind of effect on the environment.


 

A team has developed a scalable manufactured metamaterial—an engineered material with extraordinary properties not found in nature—to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption.

When applied to a surface, the metamaterial film cools the object underneath by efficiently reflecting incoming solar energy back into space while simultaneously allowing the surface to shed its own heat in the form of infrared thermal radiation.

The material takes advantage of passive radiative cooling, the process by which objects naturally shed heat in the form of infrared radiation, without consuming energy. Thermal radiation provides some natural nighttime cooling and is used for residential cooling in some areas, but daytime cooling has historically been more of a challenge. For a structure exposed to sunlight, even a small amount of directly-absorbed solar energy is enough to negate passive radiation.

“Just 10 to 20 square meters of this material on the rooftop could nicely cool down a single-family house in summer,” said Gang Tan, an associate professor in the University of Wyoming’s Department of Civil and Architectural Engineering and a co-author of the paper.

 

“The key advantage of this technology is that it works 24/7 with no electricity or water usage,” said Yang “We’re excited about the opportunity to explore potential uses in the power industry, aerospace, agriculture and more.”