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Développement d’une corrélation par mécanique numérique des fluides pour la performance du côté air d’échangeurs thermiques tubulaires à ailettes ondulées dont les tubes mesurent 2 à 5 mm de diamètre.

CFD-based correlation development for air side performance of wavy fin tube heat exchangers using 2mm-5mm tube diameters.

Numéro : pap. 2120

Auteurs : BACELLAR D., AUTE V., RADERMACHER R.

Résumé

This paper presents new CFD-based correlations for wavy-finned tube heat exchangers with tube diameter ranging from 2mm to 5mm. Herringbone and smooth wavy fin profiles are analyzed in this study. All results are based on Computational Fluid Dynamics (CFD) simulations. The CFD models are verified using the Grid Convergence Index (GCI) method. The methodology implemented in this work consists of analyzing airside heat transfer and pressure drop characteristics by using Parallel Parameterized CFD (PPCFD) allowing one to simulate a large number of fin designs with significantly reduced engineering time. The resulting data is reduced into correlations using a linear stepwise regression algorithm that can be easily implemented in various heat exchanger analyses tools. The new equations for Herringbone fins predicts 96% and 94% of the data for heat transfer and friction within 15% relative absolute deviation, respectively. Similarly, the equations developed smooth wavy fins predict 94% and 93% of the data within 15% relative absolute deviation for heat transfer and friction, respectively.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : CFD-based correlation development for air side performance of wavy fin tube heat exchangers using 2mm-5mm tube diameters.
  • Identifiant de la fiche : 30018747
  • Langues : Anglais
  • Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 11/07/2016

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