Researchers have designed an affordable and efficient ‘passive’ radiative cooling system that does not require electricity to operatePosted:
Researchers at the IIT Guwahati have designed an affordable and efficient ‘passive’ radiative cooling system that does not require electricity to operate. This ‘Radiative Cooler’ coating material is an ‘electricity-free’ cooling system as it can be applied on the rooftops and functions both during day and night time to provide an alternative to conventional air-conditioners.
Passive radiative cooling systems operate by emitting the heat absorbed from the surrounding in the form of infrared radiations that can pass through the atmosphere before getting dumped into the cold outer space.
Most passive radiative coolers operate only at night. For daytime operation, these coolers need to reflect entire solar radiation as well. Till now, these cooling systems are not able to provide sufficient cooling during the daytime. IIT Guwahati Researchers set out to resolve these issues and bring out an affordable and more efficient radiative cooling system that can operate round the clock.
Ashish Kumar Chowdhary, Research Scholar at IIT Guwahati under the supervision of Professor Debabrata Sikdar, Assistant Professor, Department of Electronics and Electrical Engineering, IIT Guwahati, along with his research team has designed and modeled such a passive radiative cooler. Their innovation has been recently covered in the Current Science Report, which was initially published in the Journal of Physics D: Applied Physics by IOP Publishing, United Kingdom.