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Science Science The roof that regulates the temperature of the house throughout the year

Science Science The roof that regulates the temperature of the house throughout the year

Temperature Adaptive Radiative Cladding (TARC) is a new ceiling cladding that helps regulate the temperature inside a home throughout the year. The material is able to self-regulate according to the weather: when it's hot, it rejects sunlight, while when it's cold it absorbs it, reducing energy use for cooling and heating. As we can see, it is an innovation that favors a more sustainable consumption of energy. Ciencia Ciencia El techo que regula la temperatura de la vivienda durante todo el año Ciencia Ciencia El techo que regula la temperatura de la vivienda durante todo el año

Temperature adaptable radioactive coating

The device, developed by scientists at the University of Berkeley, in California, USA, is made up of several layers of material, but it consists of a kind of "tape" that adheres to any solid surface, that is, to any roof type.

As Junqiao Wu, one of the Berkeley researchers, explained in a statement, "It's zero-energy, zero-emission air conditioning and heating all in one device."

Ciencia Ciencia El techo que regula la temperatura de la vivienda durante todo el año

Like other thermal technologies, DARC uses infrared radiation and is based on three dynamics: absorption, convection and radiation. The material retains heat below 25°C and begins to reject it when the temperature rises, without requiring any intervention.

10% electricity savings

The group of researchers tested the technology on several occasions, to assess its potential energy savings. When they measured changes in direct sunlight and temperature, it showed very good results, compared to commercial samples of dark and white roof coatings.

The TARC reflected approximately 75% of the sunlight regardless of the weather, but in an ambient temperature above 30°C, it reflected up to 90% of the heat. At a temperature below 15°C, it gave off only 20% of its heat.

Using this data, the researchers simulated how TARC would perform in 15 different climate zones in the United States, throughout the year.

The analysis showed that this type of roof is most effective in areas where temperatures have large differences during the day and night, or during winter and summer. On average, it could provide savings of 10% on electricity in homes.

Other possible applications of TARC

Wu concludes that this coating can help save energy by automatically turning off radioactive cooling in winter. In this way, the problem of supercooling could be overcome.

But it could also have other applications, beyond thermal insulation in homes. For example, the material could protect cars from extreme temperatures, and could even be used in satellites. It could also help extend device batteries or be used to create thermal clothing that regulates its temperature autonomously.

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