All posts by Forrest Meggers

Princeton CHAOS Lab Website

Welcome to the new Princeton CHAOS Lab website!

Cooling and Heating for Architecturally Optimized Systems

Research Group of Dr. Forrest Meggers,
Asst. Prof. at the School of Architecture &
Andlinger Center for Energy and the Environment

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Passive Radiant cooling surface material Nature Paper (Fan @ Stanford)

The group fo Shanhui Fan published a paper in Nature, “Passive radiative cooling below ambient air temperature under direct sunlight.” I demonstrates how a nanostructured surface and shift the wavelength of radiant emission into a band where the atmosphere is transparent, greatly increasing the thermal gradient and cooling potential by radiating to the sky. They were able to cool the surface to 4.9 degrees C below the ambient air temperature in sunlit conditions.

 

Nature paper:

http://www.nature.com/nature/journal/v515/n7528/full/nature13883.html

 

Media article:

http://www.sciencedaily.com/releases/2014/11/141126133821.htm