'smart' building technologies
The prototype comprises flat plastic sheets permeated with millimeter-thick channels through which fluids can be pumped. The fluids can be composed of customized pigments, particles, or other molecules to control the kind of light that gets through and the direction of distribution. "If we had just one layer that focuses on modulating the transmission of near-infrared light — so not even touching the visible part of the spectrum— we find that we could save about 25 percent annually on heating, cooling, and lighting energy over a static baseline. If we have two layers, infrared and visible, it’s more like 50 percent. These are very significant savings," said Kay.
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