A team of researchers in China have created hydrogel glass windows that are ultra efficient at blocking heat without obstructing any light from entering the space. This special hydrogel-glass has a higher level of visible light transmission, stronger near-infrared light blocking, and higher mid-infrared thermal emittance than traditional panes.
If used on an entire building or home, these hydrogel-glass windows can not only enhance indoor illumination, but also reduce indoor temperature. During their tests, researchers installed the hydrogel-glass on a 20 cm × 20 cm × 20 cm miniature house model and measured the illuminance as well as temperature at different ares. What they discovered was that the indoor illuminance of the house with hydrogel-glass is slightly higher than that in the house with normal glass on a sunny day, reducing the temperature by 3.5°C at noon. Who knows? We may even see these hydrogel glass windows being used on Project Olympus, a 3D-printed Moon habitat for future astronauts.
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With broadband light management covering the visible and thermal infrared regions of the spectrum, hydrogel-glass shows great potential for application in energy-saving windows,” said the researchers.
