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Researchers warned about the possibility of a new white paint to reduce the temperature of buildings and, therefore, reduce dependence on air conditioning equipment.
A scientific study says that this new product can reflect 95.5 percent of sunlight and reduce the temperature of the building by approximately 1.7 degrees Celsius compared to the air temperature in the surrounding environment.
The engineers involved in the study say that this effect was achieved by adding particles of various sizes of calcium carbonate to the paint. Buildings of all kinds are the biggest source of carbon dioxide emissions.
The lighting, heating and cooling of buildings is responsible for about 28 percent of the world’s carbon dioxide emissions, according to data from the World Green Building Council, and this happens because the heating and cooling of buildings is done using coal, oil and gas; in Europe, about 75 percent of this energy comes from. To heat and cool fossil fuels.
And researchers have been searching for decades to discover new ideas for increasing the efficiency of heating and cooling buildings. Various dyes have been developed that reflect sunlight for use in exterior cladding for homes and offices, which will help to reduce the interior temperature.
Until now, none of these products have been able to scatter enough sunlight to lower the building’s temperature below the surrounding environment.
Today, researchers in the United States say they have developed a white paint that has high cooling properties.
Professor Sheolin Rowan of Purdue University in Indiana, who is overseeing this scientific study, said: “In one of the experiments, in which we painted a surface outdoors and in direct sunlight, the surface temperature dropped around 1.7 degrees Celsius below ocean temperature, and overnight the drop reached 10 degrees. Degrees Celsius of Ocean Temperature ”.
“This is a significant amount of cooling energy that can make up for most of the air cooling required for typical buildings,” he added.
Source: BBC
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