Partager

Caractéristiques du transfert thermique et performance d'un échangeur de chaleur en spirale sous des conditions de refroidissement sensibles.

Heat transfer characteristics and performance of a spirally coiled heat exchanger under sensible cooling conditions.

Auteurs : WONGWISES S., NAPHON P.

Type d'article : Article

Résumé

In the study, new experimental data on the heat transfer characteristics and the performance of a spirally coiled heat exchanger under sensible cooling conditions is presented. The spiral-coil heat exchangers consists of a steel shell and a spirally coiled tube unit. The spiral-coil unit consists of 6 layers of concentric spirally coiled tubes. Each tube is fabricated by bending a 9.27 mm diameter straight copper tube into a spiral-coil of five turns. The innermost and outermost diameters of each spiral-coil are 67.7 and 227.6 mm, respectively. Air and water are used as working fluids in shell side and tube side, respectively. A mathematical model based on the conservation of energy is developed to determine the heat transfer characteristics. There is a reasonable agreement between the results obtained from the experiment and those obtained from the model and a good agreement for the high air mass flow rate region. The results obtained from the parametric study are also discussed.

Détails

  • Titre original : Heat transfer characteristics and performance of a spirally coiled heat exchanger under sensible cooling conditions.
  • Identifiant de la fiche : 2006-2257
  • Langues : Anglais
  • Source : JSME int. J., B - vol. 48 - n. 4
  • Date d'édition : 11/2005

Liens


Voir d'autres articles du même numéro (1)
Voir la source

Indexation