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Etude numérique et expérimentale d'un écoulement turbulent dans le serpentin de l'évaporateur d'une installation frigorifique.

A numerical and experimental study of turbulent flow through the evaporator coil in an air-conditioning unit.

Auteurs : XU Z. G., GOTHAM D. H. T., COLLINS M. W., CONEY J. E. R., SHEPPARD C. G. W., MERDJANI S.

Type d'article : Article, Article de la RIF

Résumé

A two-dimensional incompressible turbulent flow in an industrial packaged air-conditioning system is investigated numerically, with specific reference to the air flow through the tube banks of the evaporator coil. The system modelled comprises an outer casing containing the coil which has three rows of 20 millimeters diameter tubes in staggered formation, each row having tubes, and a condensate tray with complex geometry. In a parallel experimental investigation conducted on the actual air-conditioning unit, both the mean velocity profiles and turbulence properties of the flow are obtained from triple hot-wire anemometry measurements. These are then used to compare with the computational results and validate the mathematical models developed. It is found that the predictions are generally in good agreement with the measurements, especially for the higher-order differencing scheme.

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Format PDF

Pages : 369-381

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    20 €

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    Gratuit

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Détails

  • Titre original : A numerical and experimental study of turbulent flow through the evaporator coil in an air-conditioning unit.
  • Identifiant de la fiche : 1998-0837
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 6
  • Date d'édition : 07/1996

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