Thermal resonator will generate electricity from daily temperature differences

<pre>Thermal resonator will generate electricity from daily temperature differences

Energy surrounds us literally from all sides. The whole question is how to get it. The team of the Massachusetts Institute of Technology (MIT) has developed a device – a thermal resonator with which it is possible to extract electricity from ambient air using daytime temperature changes.

Experiments with temperature oscillations as an energy source have been conducted for a long time. Most of the devices created for this purpose generate electricity using the temperature differences between the two sides of the material. As is known, heat moves from the warmer side to the cold side, “dragging” charges behind it, resulting in a voltage difference – that is, an electric current.

Earlier, thermoelectric experiments with clothes, paints and cooking pots that could be built into the energy system of enterprises for the recycling of waste heat have already been carried out. However, in order to obtain the desired return, the temperature differences should be very significant.

The thermal resonator is filled with a material that captures heat-foam, consisting of copper, nickel and phase-forming wax-octadecane, which compresses and solidifies at certain temperatures. The foamy mixture is covered with a layer of fine heat-transfer agent – graphene.

Together, this combination of materials gives the device a very high effusion (slow flow of molecules through tiny holes without collisions between each other). This means that the material effectively releases heat into an adjacent environment.

In fact, heat is fixed on one side of the device and slowly radiates through the material to another. Since one side of the material is always colder than the other, the heat will constantly circulate, trying to balance it. At this time, energy can be collected using conventional thermoelectric systems.

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