Partager

Distribution de l'écoulement d'air à travers un évaporateur en forme de A sous des conditions de serpentin sec ou humide.

Air flow distribution through an A-shaped evaporator under dry and wet coil conditions.

Auteurs : YASHAR D. A., DOMANSKI P. A.

Résumé

This paper presents a study of the air flow distribution through a residential air-conditioning heat exchanger. The test subject was a finned-tube, A-shaped coil outfitted with a condensation collection pan required for horizontal installation. The authors examined the air flow distribution approaching and exiting the coil at the rated and a reduced air flow rate, and at two humidity levels. Their measurements showed that the presence of the condensation collection hardware greatly impedes air flow through the lower slab of the coil. The measurements also uncovered portions of the coil where the airflow is blocked by the mounting hardware. The wet coil tests showed that the presence of water on the coil causes a large increase in air flow resistance which has an effect on the flow distribution. The distribution of water concentration was non-uniform and time dependent. The authors also developed a computational model of the flow through the test coil, based on a momentum resistance modelling approach.

Documents disponibles

Format PDF

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 : Air flow distribution through an A-shaped evaporator under dry and wet coil conditions.
  • Identifiant de la fiche : 2011-0116
  • Langues : Anglais
  • Date d'édition : 12/07/2010
  • Source : Source : Proc. 2010 int. Refrig. Air Cond. Conf., Purdue Univ.
    n. 2100; 8 p.; fig.; photogr.; tabl.; 8 ref.

Indexation