Free Radiative or Sky Cooling – Reducing Greenhouse Emissions
A scientist in optics and material science has developed an inventive solution to our reliance on electricity dependent cooling systems. His team has developed artificial materials that do not absorb sunlight whilst simultaneously emitting thermal radiation back into the atmosphere, effectively allowing the material to passively stay cooler than the surrounding air temperature. This essentially makes electricity-run-cooling redundant and when 17% of the electricity used around the world is for cooling and makes up 10% of greenhouse gas emissions – can you imagine how much this development could significantly reduce the energy needed by our cooling systems?
They are currently trialling panels that cool water in California and hope to install this technology as a component of existing cooling systems around the world.
Have a read about his proposal here and let us know what you think: https://medium.com/penn-engineering/aaswath-raman-is-getting-free-cooling-straight-from-the-sky-3815b36ebe88