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That proved that magnetic refrigeration is a mature technology, capable of replacing the classic refrigeration solutions. One year later, in September 2018, at the 8th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VIII]), Cooltech Applications presented a paper on a magnetocaloric prototype designed as a 15 kW ...
In 1820, the English scientist Michael Faraday liquefied ammonia and other gases by using high pressures and low temperatures, and in 1834, an American expatriate to Great Britain, Jacob Perkins, built the first working vapor-compression refrigeration system in the world. It was a closed-cycle that could operate continuously, as he described in ...
Superconducting magnetic energy storage (SMES) systems store energy in the magnetic field created by the flow of direct current in a superconducting coil that has been cryogenically cooled to a temperature below its superconducting critical temperature. This use of superconducting coils to store magnetic energy was invented by M. Ferrier in 1970.
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If anyone else is still confused, I would suggest asking for help on the Physics Stack Exchange, or some other physics forum, rather than Wikipedia. Magnetic refrigeration is a real, observed effect! (although at the moment it is used mostly in research for very cold temperatures). DigitalHamster 14:35, 7 June 2023 (UTC)
Cohen is interested in alternatives to standard models of refrigeration, using magnetic materials. [8] Magnetic refrigeration could provide a "green" alternative to traditional fridges, using 20 - 30% less energy. [9] In 2009 her group uncovered the mechanism behind cooling crystals, known as the magnetocaloric effect. [10] [11] [12]
The refrigeration process uses a mixture of two isotopes of helium: helium-3 and helium-4. When cooled below approximately 870 millikelvins, the mixture undergoes spontaneous phase separation to form a 3 He-rich phase (the concentrated phase) and a 3 He-poor phase (the dilute phase).