Scientists have created the air conditioner of the future!
Engineers at the University of Saarland are finishing work on a unique invention — an air conditioner of the future, which is based on the ability of nitinol to “remember” the original shape and restore it after deformation. The technology is based on an alloy of nickel and titanium (nitinol), which is known for its ability to return shape when heat is released.
In April 2020, scientists from Germany will present this unusual device at an exhibition, where it will become a worthy competitor to traditional air conditioners. Nitinol, nicknamed metal muscle and smart alloy, is already actively used in aviation and space engineering, robotics and medicine. Thanks to the revolutionary research of scientists from the University of Saarland, the nickel-titanium alloy can now be actively used in industry and in everyday life, since the resulting energy is environmentally friendly and safe for humans and the environment.
The air conditioner of the future is structurally simple and consists of a cylinder on which a nitinol thread is wound. Engineers experimentally selected a certain thickness and number of turns, achieving maximum efficiency. When stretched, nitinol absorbs a large amount of ambient heat, and when it returns to its original form, it releases it. The temperature difference is about 20 °C. It is noteworthy that the cylinder absorbs and releases energy, the amount of which is 30 times higher than the volume required for deformation of the nitinol thread. Thus, the device is three times more efficient than a conventional air conditioner and twice as efficient as any heat pump.
It is important to note that the operation of the new air conditioner does not require gaseous refrigerants that cause significant harm to the environment. The eco-friendly air conditioner will be presented at the industrial fair, which will be held from April 1 to April 5 in Hanover.
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