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Étude des performances thermodynamiques d'un petit compresseur volumétrique à barillet multi-étagé sous différentes températures ambiantes.

Investigation on the thermodynamic performance of a small multi-stage swash-plate compressor under different ambient temperature.

Auteurs : DENG Y., JIANG X., PANG H., LIU Y., WANG P.

Type d'article : Article de la RIF

Résumé

Small multi-stage swash-plate compressors are key components in many industrial equipment for supplying clean compressed air. When operated on earth, their thermodynamic properties can be significantly affected by extreme ambient temperature. This paper proposes stages-in-series mathematical models to simulate the real operating state of a small multi-stage swash-plate compressor. The coupled interaction between inter-stage gas channels and each stage cylinder are considered in the model. The real-time variation of in-cylinder and in-intercooler thermodynamic properties such as pressure, temperature, mass flow and volumetric efficiency with ambient temperature are predicted. The results show that ambient temperature exists significant influence on the thermodynamic properties of the intercooler and cylinders. The volume flow rate decreases from 12.28 SL/min to 11.28 SL/min when ambient temperature increases from 233.15 K to 253.15 K and when ambient temperature rises to 333.15 K, the flow rate decreases to 8.49 SL/min. Additionally, it is found that ambient temperature exerts more significant influence on volume flow rate compared to indicated work. This study can provide valuable reference for operation of multi-stage swash-plate compressors and other multi-stage reciprocating compressors under extreme ambient temperature.

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Format PDF

Pages : 196-207

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    20 €

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Détails

  • Titre original : Investigation on the thermodynamic performance of a small multi-stage swash-plate compressor under different ambient temperature.
  • Identifiant de la fiche : 30030809
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
  • Date d'édition : 01/2023
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2022.09.017

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