What kind of technology is elastic thermal refrigeration technology, and what is the difference with traditional refrigeration technology?

Elastic thermal refrigeration technology is a solid-state refrigeration technology which is driven by stress field and produces refrigeration effect. This technology has high theoretical refrigeration efficiency and refrigeration power density, and compared with traditional refrigeration technology, it has no harm to the environment. The principle of traditional refrigeration technology is to use the heat absorption of liquid vaporization and the heat release effect of condensation to achieve refrigeration effect. The principle of elastic thermal refrigeration is that when the shape memory alloy is stretched, the alloy will release heat, and when it returns to its original state, it will absorb heat, thus producing refrigeration effect. Therefore, elastic thermal refrigeration technology is a kind of green refrigeration technology, and it is also a research hotspot at present. Refrigeration can bring thermal effect! As we all know, air conditioners and refrigerators used at home use a substance called refrigerant, also called snow seed, which is scientifically called refrigerant, although freon is the main refrigerant used at present. Freon will bring two unfriendly effects. The first is the depletion of the ozone layer. Then there is the greenhouse effect that cannot be ignored. These two effects will eventually contribute to global warming, so the process of eliminating freon on a global scale is imminent. So now there is a new refrigeration method that does not need to use freon, which is bound to cause a curse.

For example, suppose we need to reduce the temperature 12℃ now, and the given two kinds of materials with the same cooling effect, then the elastic thermal refrigeration material needs to be lengthened by 7 times, which is easier to realize from the commercial point of view if the volume change is small. Generally, it takes several stages from the beginning of the principle to the realization and commercialization: the basic principle is discovered, then the technical application research and concept verification are carried out, and then the simulation component testing and the whole system verification are started. After the prototype verification is successful, the real environment verification will continue, and after the user's finished product verification is successful, the product promotion and application can begin. Now it seems that although the road of thermal application is still far away, it must be said that the discovery of elastic thermal refrigeration technology not only adds a new member to the solid-state refrigeration family, but also brings more choices and new hopes to the refrigeration industry.