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Simulation numérique de l'écoulement d'air du ventilateur à pales multiples d'un système de conditionnement d'air et optimisation de la solution.

Numerical simulation of the airflow of the multi-blades fan of air-conditioning system and the optimization of the solute.

Auteurs : YU X., LIU Y., SHAO N., et al.

Résumé

The existing and mature CFD technology is applied in this paper. Through the simulation of the prototype fan, we find there are obvious vortexes in the cochlea part of the fan. The authors adopt two schematic plans to improve the efficiency of the fan, because this vortex can cause high energy consumption. At same time, it increases the noise of the ventilator in the air-conditioning system and affects the efficiency of the fan. The first scheme is to increase the radius of the cochlea. The second scheme is to change the cochlea into tilted. The authors also have some experiment of the velocity of the outlet of the fan in order to make some comparison. They can find that the unsuitable change of the cochlea radius caused more disorder airflow rather than improve the cochlea vortexes. They conclude that the key issue is to find the suitable radius of the cochlea in the design of the fan. When they try the design of the tilted cochlea, they get a satisfying outcome.

Documents disponibles

Format PDF

Pages : ICR07-E1-267

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Numerical simulation of the airflow of the multi-blades fan of air-conditioning system and the optimization of the solute.
  • Identifiant de la fiche : 2008-0794
  • Langues : Anglais
  • Sujet : Technologie
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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