Can you imagine electricity savings during summers if air conditioning weren’t a part of our daily lives? Researchers from the Indian Institute of Technology in Guwahati have developed an alternative to air conditioners with a “radiative cooling system” that doesn’t even need electricity.
Officials say that this “radiative cooler” coating material may be used on rooftops, and provides an effective alternative to conventional air conditioners that are notorious for their power consumption needs.
How does a “radiative cooler” work?
“Passive radiative cooling systems operate by emitting 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,” Ashish Kumar Chowdhary from IIT Guwahati was quoted by PTI.
There’s one issue though! Currently, these cooling systems are not able to provide enough cooling during daytime. “We are set to resolve these issues and bring out an affordable and more efficient radiative cooling system that can operate round-the-clock,” Chowdhary added.
While the scientists work on fixing this important issue, such radiative coolers could come in handy in the near-future. They could be a viable alternative to conventional ACs units “that dump the waste heat into the surroundings.” These radiative coolers cools an object on Earth by “sending excessive heat directly into the extremely cold universe.”
The details of their research were published in the Journal of Physics D: Applied Physics.
What do you think about this novel technique to keep our surroundings cool without electricity? Let us know in the comments below. For more in the world of technology and science, keep reading Indiatimes.com.
Press Trust of India. (2022a, July 4). IIT Guwahati Researchers Develop Alternative to ACs With Radiative Cooling System Which Needs No Electric. . . NDTV Gadgets 360.