Share

Recommended by the IIR / IIR document

Active magnetic regenerative cooling with smaller magnets.

Author(s) : GRIFFITH L., CZERNUSZEWICZ A., SLAUGHTER J., PECHARSKY V.

Type of article: IJR article

Summary

Magnetocaloric heat pumping near room temperature, a.k.a. magnetic cooling, relies on the active regenerator cycle to achieve functional temperature spans and realize economic and societal benefits promised by this emerging solid-state cooling technology. The cycle itself depends upon synchronizing oscillating flow of a heat transfer fluid through a solid porous active material matrix, or the refrigerant, with periods when the refrigerant is in the highest available (field-on) and in nearly zero (field-off) magnetic fields to accomplish heat transfer. With this in mind, we analyze varying flow and magnetic field wave forms and the timing between when the fluid is pumped and when the magnetic field is turned on and off. We demonstrate that the volume and the cost of permanent magnet generating the field changes can be cut nearly in half with little to no effect on the device temperature span and cooling power normalized by the refrigerant mass.

Available documents

Format PDF

Pages: 44-51

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Active magnetic regenerative cooling with smaller magnets.
  • Record ID : 30028259
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 125
  • Publication date: 2021/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2021.01.018
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (13)
See the source

Indexing