Document IIF

Calcul des caractéristiques de performance des tours de refroidissement réversibles à contre-courant.

Calculations on performance characteristics of counterflow reversibly used cooling towers.

Auteurs : ZHANG Q., WU J., ZHANG G., et al.

Type d'article : Article, Article de la RIF

Résumé

This paper aims at developing an analytical model for the coupled heat and mass transfer processes in a counterflow reversibly used cooling tower (RUCT) based on operating conditions, which is more realistic than most conventionally adopted Merkel approximations. Temperature and moisture content differences are chosen as the driving forces of heat and mass transfer correspondingly and a system of specific difference equations is developed to solve the model more efficiently. The model is investigated by using an iterative algorithm, which is validated with the experimental data reported. The analytical model also accommodates the direct and quick calculation of air and water temperature profiles, moisture content of air and the water mass flow rate change along the vertical length of the RUCT. With the aid of the developed model, the thermal behavior of the counterflow RUCT under various operating and environmental conditions is also studied in this paper. The results reveal that the proposed model can provide a theoretical foundation for practical design and performance evaluation of counterflow RUCT.

Documents disponibles

Format PDF

Pages : 424-433

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 : Calculations on performance characteristics of counterflow reversibly used cooling towers.
  • Identifiant de la fiche : 30003298
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 2
  • Date d'édition : 03/2012

Liens


Voir d'autres articles du même numéro (22)
Voir la source