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L'effet de la régulation du jeu sur la performance d'un compresseur frigorifique linéaire sans huile et une comparaison entre l'utilisation d'un débit d'échappement et d'une polarisation en courant continu.

The effect of clearance control on the performance of an oil-free linear refrigeration compressor and a comparison between using a bleed flow and a DC current bias.

Auteurs : LIANG K., STONE R., DADD M., et al.

Type d'article : Article, Article de la RIF

Résumé

A moving magnet type oil-free linear compressor has been designed for applications such as electronics cooling. A control system using a solenoid operated valve was developed for DC offset and axial clearance control. Operation of the linear compressor with a fixed clearance of 0.8?mm was compared with a zero DC offset operation. The fixed clearance operation requires a higher power input.
The mean piston position can be controlled by using a DC bias on the drive voltage or by using a bleed flow from the compressor body to the suction side of the compressor. Using a DC bias on the drive voltage induces a higher power loss than using a bleed flow when there is a small radial clearance between the piston and cylinder. This provides evidence that the piston control in a refrigeration system with capacity control should be for a zero DC offset using a bleed flow.

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Format PDF

Pages : 407-417

Disponible

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    20 €

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Détails

  • Titre original : The effect of clearance control on the performance of an oil-free linear refrigeration compressor and a comparison between using a bleed flow and a DC current bias.
  • Identifiant de la fiche : 30018608
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 69
  • Date d'édition : 09/2016

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