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Une étude expérimentale des caractéristiques de la performance d'un micro-compresseur à gaz en série.

An experimental study on the performance characteristics of the serial micro gas compressors.

Auteurs : CHOI J. W., YOON J. S., KIM M. S.

Résumé

The micro gas compressor was designed and fabricated on three silicon layers with a silicon membrane, compression chamber and cantilever check valves. The working fluid R123 is driven by a piezoelectric actuator, which is attached to the silicon membrane. Furthermore, the comparison of the performance with one microgas compressor and that with two serial microgas compressors have been done for various parameters, which are the back pressure, input has voltages and vibrating frequencies applied to the PZT actuator. The performance curves mainly depend on the voltage rather than the frequency, because the higher voltage causes the larger stroke volume and eventually brings about a higher stroke ratio. Consequently, the voltage should be kept high for a robust operation. In the process of single compression, the largest flow rate is 0.98 g/h and the highest discharge to suction pressure ratio is 1.17. Additionally, in the case of the serial compressors, the former is 0.74 g/h and the latter is 1.30, which means pressure ratio becomes higher in the two stage compression processes while the mass flow rate decreases a little.

Documents disponibles

Format PDF

Pages : pp. 133-137

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : An experimental study on the performance characteristics of the serial micro gas compressors.
  • Identifiant de la fiche : 2010-0756
  • Langues : Anglais
  • Source : ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
  • Date d'édition : 20/05/2009

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