The following is an excerpt from Matt McGrath | October 26, 2018 | BBC.com |
Researchers in the US have scaled up a new low-cost system that could provide efficient cooling for homes while using very little electricity.
The team has developed a roof-top sized array, built from a highly reflective material made from glass and polymers.
In tests, the system kept water around 10C cooler than the ambient air when exposed to midday sunlight in summer.
The approach could also be scaled up to cool power stations and data centres.
The system is based around what's termed a cooling meta-material, which is essentially an engineered film not found in nature.
Last year, researchers at CU Boulder in the US published research on the extraordinary properties of the new film, which reflects back almost all incoming light from the Sun.
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