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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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(2016) designed and built a reciprocating magnetic refrigerator that was tested at changing operating conditions.
Sternberg et al., "Description and performance of a near-room temperature magnetic refrigerator," Advances in Cryogenic Engineering, vol.
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.
Lu, "A new permanent magnet system for rotating magnetic refrigerator," IEEE Transactions on Applied Superconductivity, Vol.
"Design and initial performance of a magnetic refrigerator with a rotating permanent magnet." 2nd International Conference on Magnetic Refrigeration at Room Temperature.
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.
According to Karl Gschneidner Jr., Anson Marston Distinguished Professor of Materials Science and Engineering at Iowa State University, the magnetic refrigerator employs a rotary design.
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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