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Document IIF

Evaluation des performances des tubes lisses et à micro-ailettes dans un condensateur à double tube pour les mélanges de frigorigènes naturels composés de propane/n-butane ou de propane/i-butane.

Performance evaluation between smooth and micro-fin tubes in a double-tube condenser for natural refrigerant mixtures composed of propane/n-butane or propane/i-butane.

Auteurs : KOYAMA S., LEE S. M., OGAWA H.

Résumé

This paper deals with the heat exchange performance prediction of a counterflow type double-tube condenser for natural refrigerant mixtures composed of propane/n-butane or propane/i-butane in a smooth tube and a micro-fin tube. The local characteristics of heat transfer, mass transfer and pressure drop are calculated using a prediction method developed by the authors. The total pressure drop and the overall heat transfer coefficient were also evaluated under various heat exchange conditions. The calculated results of the natural refrigerant mixtures were compared with those of commercial refrigerants. In conclusion, natural refrigerant mixtures composed of propane/n-butane or propane/i-butane are appropriate candidates for alternative refrigerants from the viewpoint of heat transfer characteristics.

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    20 €

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    Gratuit

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Détails

  • Titre original : Performance evaluation between smooth and micro-fin tubes in a double-tube condenser for natural refrigerant mixtures composed of propane/n-butane or propane/i-butane.
  • Identifiant de la fiche : 2005-0065
  • Langues : Anglais
  • Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Date d'édition : 17/08/2003

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