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Investigations of a 450 g micro moving-coil linear compressor operating at 200 Hz.

Études d’un compresseur linéaire miniature à bobine mobile de 450 g fonctionnant à 200 Hz.

Numéro : pap. n. 429

Auteurs : LI J., TAN J., ZHA R., et al.

Résumé

This paper presents the design and optimization of a micro moving-coil linear compressor for Stirling-type pulse tube cryocoolers. The overall mass of the compressor is less than 450 g. It is designed to operate at a high frequency of around 200 Hz, which is developed with the modified scaling method based on the typical mid-sized compressors in the authors’ laboratory. The scaling factors of moving mass and linear motor are studied in detail. A three-dimensional model is built to simulate the magnetic field in the micro linear compressor. The non-uniform magnetic field influences the direction of the specific thrust which decreases the efficiency of the linear compressor. The micro linear compressor is worked out and then coupled with a pulse tube cold finger, which can provide a cooling power of 0.85 W at 77 K.

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Pages : 8

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Détails

  • Titre original : Investigations of a 450 g micro moving-coil linear compressor operating at 200 Hz.
  • Identifiant de la fiche : 30025909
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0429

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