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Effets de propriétés thermophysiques variables sur l'écoulement et la séparation d'énergie dans un tube vortex.

Effects of variable thermophysical properties on flow and energy separation in a vortex tube.

Auteurs : OUADHA A., BAGHDAD M., ADDAD Y.

Type d'article : Article, Article de la RIF

Résumé

A numerical study has been conducted to investigate the effects of variable fluid properties on the prediction of a basic tube vortex design. Beforehand, a literature review is presented to highlight some of the recent advances in the enhancements of the device design and its efficiency. The three-dimensional computations with constant and variable properties revealed that the constant thermophysical assumption might not have a dramatic effect if the aim is to predict global values only, but extra caution should be taken for an in-depth flow assessment. The exergy analysis conducted suggests that the highest exergy efficiency, for the current device design, ranges from 38% to 46% depending on the inlet pressure value. Based on the current numerical analysis; rather large exergy losses are due to irreversibility occurring at either; the lowest or the highest cold mass fraction boundary conditions.

Documents disponibles

Format PDF

Pages : 2426-2437

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Effects of variable thermophysical properties on flow and energy separation in a vortex tube.
  • Identifiant de la fiche : 30009862
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 8
  • Date d'édition : 12/2013

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