Date: 6 months ago   Category: Hi-Tech

The material preventing frosting thanks to energy of the Sun is created


He uses three-layer structure which allows to hold and extend heat.

Engineers from the Massachusetts Institute of Technology (MIT) have developed three-layer material which absorbs sunlight and, holding him, prevents freezing of a surface. Work is published in the Science Advances magazine.

Formation of ice - threat for many devices, including planes and wind turbines. The fight methods existing today aren't always effective: for example, superhydrophobic structures are connected by hoarfrost that does all system useless, - therefore scientists improve them. Researchers from MIT have invented inexpensive material which doesn't need additional power sources and uses the radiation of the Sun for prevention of frosting. They called it a photothermal trap (photothermal trap).

It consists of three layers. The first layer - composite, it includes ceramic and metal substances (cermet). Thanks to the structure, he absorbs 95 percent of sunlight, and gives only three. The problem is that it generates heat only in those places where on him light falls, and at the same time gives a part of energy to underlying layers.

For the solution of these problems engineers have added the second layer - aluminum - only 0,4 millimeters thick. Metal receives heat from the top layer and distributes him on all surface. According to professor Kripy of Kripa Varanasi, heating happens because of a fast warm response quicker than freezing.

the Third layer - foam insulation which allows to keep heat within the first two and doesn't let him below. Thus, when the first layer, heat, thanks to the second heats up, it is distributed on all surface. The lower part of ice thaws, and the thin layer is formed of water, the surface becomes slippery therefore other part of ice just slides off. Scientists have already carried out tests to laboratories with artificial lighting and under the open sky - all of them were successful. In the future the technology can be used not only on planes, but also on roofs of usual houses. you can also watch with

video in which it is shown that will be if to mix the melted aluminum with the ice liquid nitrogen and solid carbon dioxide also known as artificial ice.

of

URL:




Today

just now

The ambassador of Ukraine in Canada Andrey Shevchenko gave the direct written instruction to conclude under the Russian laws the bargain on sale of the ground belonging to it in the Crimea. It was sai...

just now

The mayor of Lviv, the candidate for President of Ukraine Andrey Sadovyi drove Lviv residents into boondocks and squabbled with the whole country. Such opinion on air of TV channel "112 Ukraine" was e...

just now

The most emotional display today within a Fashion week in Milan the fashion show of Fendi became indisputable - on a podium presented the last collection created with the assistance of Karl Lagerfeld....

just now

On Wednesday, February 20, in a zone of carrying out Operation of the Integrated forces on Donbass the fighter of AFU Vasily Bogonosyuk died. Is specified that the dead was the senior soldier of the...

just now

Unknown vandals broke 8 vases which were installed within improvement of the territory near Arkady. This information was published by the press service of the Odessa city council. "The staff of th...

just now

Philip's tours with Alla broke mentality of the young actor. Kirkorov beat women, fans and even pensioners, but thanks to the help of doctors learned to behave. Philip Kirkorov is well-known for the...

just now

In the near future Earth can return to a condition of the Palaeocene eotsenovogo thermal maximum (PETM). It was observed on the planet already once - 56 million years ago. However thanks to vigorous activity of the person history can repeat. Writes Phys.org about it. the New research showed that people pump carbon dioxide in the atmosphere wi...

just now

NVIDIA presented video cards of new family MX for laptops of initial level - GeForce MX230 and GeForce MX250. These are products on the basis of architecture of Pascal. They support DirectX 12 and bot...