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Document IIF

Paramètres thermodynamiques d'un réfrigérateur magnétique fonctionnant suivant un cycle Carnot.

Thermodynamic parameters of a magnetic refrigerator with a Carnot cycle.

Numéro : pap. 0014

Auteurs : MASHIROV A. V., KOLEDOV V. V., KAMANTSEV A. P., et al.

Résumé

Theoretical modeling of thermodynamic and technical parameters of a cryogenic single-stage magnetic refrigerator operating at a temperature of about 25 K and in a magnetic field up to 10 T was carried out in the present work. As a working body, the alloy DyNi2 is used. Modeling of heat transfer processes with a single cooling cycle was carried out. The calculation showed that for a given design configuration, the average heat transfer time is not more than 1-2 seconds, then the entire time of a single cooling cycle is no more than 2-4 seconds. This allows one to estimate the specific power and the achieved temperature difference of a singlestage refrigerator with a Carnot cycle. An estimate for the coefficient of performance (COP) of the cooling process shows advantages over traditional refrigerators based on gaseous working bodies.

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Pages : 6

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Détails

  • Titre original : Thermodynamic parameters of a magnetic refrigerator with a Carnot cycle.
  • Identifiant de la fiche : 30025015
  • Langues : Anglais
  • Source : 8th International Conference on Caloric Cooling (Thermag VIII). Proceedings: Darmstadt, Germany, September 16-20, 2018.
  • Date d'édition : 16/09/2018
  • DOI : http://dx.doi.org/10.18462/iir.thermag.2018.0014

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