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Etude expérimentale de l'impact de la configuration du collecteur sur la mauvaise distribution de l'écoulement dans un échangeur de chaleur à plaques à ailettes.

Experimental investigation of header configuration on flow maldistribution in a plate-fin heat exchanger.

Auteurs : JIAO A., ZHANG R., JEONG S.

Type d'article : Article

Résumé

In this article, the concept of second header installation is put forward. The experimental investigation on the effects of the inlet pipe diameter, the first header's diameter of equivalent area and the second header's diameter of equivalent area on flow maldistribution in plate-fin heat exchanger (PFHE) was performed. The results indicate that the flow distribution in PFHE becomes more uniform. The correlation of the dimensionless flow maldistribution parameter S and Reynolds number was obtained under different header configurations. The ratio of the maximum flow velocity and the minimum flow velocity dropped from 2.08-2.81 to 1.2-1.4 for various Reynolds numbers. The experimental studies proved that the performance of flow distribution in PFHE is effectively improved by optimum design of the header configuration.

Détails

  • Titre original : Experimental investigation of header configuration on flow maldistribution in a plate-fin heat exchanger.
  • Identifiant de la fiche : 2004-0637
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 23 - n. 10
  • Date d'édition : 07/2003

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