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Analyse de la perte de puissance d’un compresseur à palettes rotatives sans huile : Étude expérimentale et modélisation mathématique.

Power loss analysis in a new oil-free rotary vane compressor: Experimental investigation and mathematical modeling.

Auteurs : RAYKOVSKIY N. A., CHERNOV G. I., EVDOKIMOV V. S., KALASHNIKOV A. M., SADVAKASOV D. K.

Type d'article : Article de la RIF

Résumé

This paper presents the design of an oil-free rotor vane stage with a new tribological scheme. The new scheme differs from existing ones in that the sealing vane contain protrusions that rest on rolling unloading bearings located in the end covers of the cylinder. Experimental results on friction power losses in the new and traditional stages are provided, demonstrating that the implementation of the new stage design allows for an average reduction in friction power losses by a factor of 10. A mathematical model for calculating friction power losses in the rotor vane type compressor stage, implementing the new tribological scheme, has been developed. The analysis based on the mathematical model confirms the possibility of achieving mechanical efficiency values higher than 0.9 in oil-free rotor vane stages with a pressure ratio of 3 and a rotor speed of 3000 rpm, through the use of the new tribological scheme. It has been found that there is a redistribution of the importance and values of the main design parameters recommended for the design of oil-free rotor vane stages with the new tribological scheme, which determine its structural configuration, compared to its traditional design.

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Pages : 298-311

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Détails

  • Titre original : Power loss analysis in a new oil-free rotary vane compressor: Experimental investigation and mathematical modeling.
  • Identifiant de la fiche : 30032263
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 160
  • Date d'édition : 04/2024
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2024.01.027

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