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Estimation du joint d’arbre radial, de la traînée d’huile et de la perte par enroulement dans un compresseur à double vis à injection d’huile.

Estimation of radial shaft seal, oil drag and windage loss in twin screw oil injected compressor.

Numéro : A2-179

Auteurs : ABDAN S., STOSIC N., KOVACEVIC A., SMITH I., ASATI N.

Résumé

The objective of this paper is to study the mechanical power loss arising from radial shaft seal, oil drag, and windage within the twin-screw oil-injected screw compressor. The previous papers in the series presented the evaluation of power loss due to the gears and bearings where it was found that the calculated total power loss was underestimated when compared to the experimental results for different sizes of compressors and different operating conditions. This indicates that few additional contributing elements were missing and needed due consideration to enhance the prediction. Literature review of the basic fluid dynamics and transmission gears confirms that oil drag loss and windage loss can also contribute to the power loss considerably. This paper presents a review of a few methods for the prediction of the radial shaft seal, oil drag, and windage loss. Predictions with the use of these methods and their comparison with the experimental results are analysed in this paper. Experimental results of three different sizes of the compressors tested in laboratory conditions were taken as reference for the comparison at different operating speeds and pressure ratios. The analysis helps to understand the contribution of each element of the power loss which can help a designer to optimally design a screw compressor.

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Pages : 8

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Détails

  • Titre original : Estimation of radial shaft seal, oil drag and windage loss in twin screw oil injected compressor.
  • Identifiant de la fiche : 30028735
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 12th International Conference on Compressors and their Systems
  • Date d'édition : 09/2021
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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