magnetic refrigerator

magnetic refrigerator

[mag′ned·ik ri′frij·ə‚rād·ər]
(cryogenics)
A device for keeping substances cooled to about 0.2 K, in which a working substance consisting of a paramagnetic salt undergoes a cycle of processes which approximates a Carnot cycle between a high-temperature reservoir consisting of a liquid-helium bath at 1.2 K and a low-temperature reservoir consisting of the substance to be cooled, and isentropic cooling of the working substance is accomplished by demagnetization.
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Working Principle of Magnetic Refrigerator A typical magnetic refrigeration cycle usually consists of four major stages of processes which are shown in Fig.
These properties have been injected in numerical model to compute the physical parameters of active magnetic refrigerator.
The report said that the GE labs estimated a magnetic refrigerator would be 20 to 30 percent more efficient than its compressor-using cousins, and would not require chemical refrigerants, which would result in energy savings and make the process of recycling old machines much simpler.
A magnetic refrigerator makes use of the magnetocaloric effect.
Ito: A study on the fundamental heat transport potential of an in vehicle magnetic refrigerator, Fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature, Thermag V Grenoble, France, 17-20 September 2012.
When it comes to building the machine in the context of a practical magnetic refrigerator, the engineer has to choose from different set of parameters.
it's impossible to spread yourself that thin without reinventing the magnetic refrigerator calendar.
Design and initial performance of a magnetic refrigerator with a rotating permanent magnet.
Brown (1976) first constructed a regenerative magnetic refrigerator and showed that the use of a regenerative configuration can provide a no-load temperature span that is much greater than the adiabatic temperature change of the magnetocaloric material that is used to construct the regenerator.
Department of Energy's Ames (Iowa) Laboratory, researchers have successfully demonstrated the world's first room-temperature, permanent-magnet, magnetic refrigerator.
Numerous patents have been assigned to the design and assembly of magnetic refrigerator seals.
A magnetic refrigerator is influenced fundamentally by the size of the magnetocaloric effect of the refrigerant.

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