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Document IIF

Efficacité des échangeurs thermiques à plaques, à courants croisés pour refroidissement indirect évaporatif.

Effectiveness of crossflow plate heat exchangers for indirect evaporative cooling.

Auteurs : STOITCHKOV N. J., DIMITROV G. I.

Type d'article : Article, Article de la RIF

Résumé

A short-cut method for calculating the effectiveness of wet surface crossflow plate heat exchangers is developed. It introduces a correction for the effectiveness estimated according to the method of Maclaine-cross and Banks. For this purpose a new model with a water film that flows down, corresponding to the real conditions in these heat exchangers, is developed. The method of Maclaine-cross and Banks is improved by an approach to determine the mean water surface temperature and by derivation of an equation for calculating the ratio of total to sensible heat taking into account the barometric pressure. Performance predictions by this method for wet surface crossflow plate heat exchangers are found to agree with the finite difference solutions.

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Format PDF

Pages : 463-471

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    20 €

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    Gratuit

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Détails

  • Titre original : Effectiveness of crossflow plate heat exchangers for indirect evaporative cooling.
  • Identifiant de la fiche : 1999-0781
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 21 - n. 6
  • Date d'édition : 09/1998

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