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Document IIF

Étude expérimentale du transfert de chaleur sur un faisceau de tubes sous des conditions de givrage.

An experimental study of heat transfer on a tube bank under frost formation conditions.

Auteurs : RAMIREZ-HERNANDEZ H. G., SANCHEZ-CRUZ F. A., SOLODO-ORDAZ F. J., et al.

Type d'article : Article, Article de la RIF

Résumé

An experimental study of heat and mass transfer on a tube bank under frost formation conditions was conducted using a closed-loop wind tunnel. The tube bank was exposed to a controlled environment; surface temperature from C to C, relative humidity from 50% to 90%, air dry bulb temperature from 1?°C to 11?°C, average air velocity from 0.3 ms to 1.0 ms and Reynolds number from 518 to 1719. The results showed a non-uniform frost growth due to the air stream characteristics. When the Reynolds number increases a more uniform pattern becomes noticeable. The frost growth is more uniform on the last tube than on the first one, due to the aerodynamic differences. Sensible heat transfer has a greater impact on the total heat transfer, compared to latent heat transfer effect. The higher the frost layer growth the lower the frost deposition rate on the tubes.

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Format PDF

Pages : 35-46

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    20 €

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Détails

  • Titre original : An experimental study of heat transfer on a tube bank under frost formation conditions.
  • Identifiant de la fiche : 30025856
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 102
  • Date d'édition : 06/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.01.031

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