Partager

Etude expérimentale sur le transfert de chaleur lors de l'évaporation et les caractéristiques de chute de pression du HFC-161 à l'intérieur d'un tube horizontal lisse.

Experimental investigation on evaporation heat transfer and pressure drop characteristics of HFC-161 in a horizontal smooth tube.

Numéro : pap. 2165

Auteurs : LI P., WANG X. H., HAN X. H., et al.

Résumé

The evaporation heat transfer and pressure drop characteristics of HFC-161 in a horizontal smooth tube with an inside diameter of 9 mm was experimentally investigated. The local heat transfer coefficient and total pressure drop were measured at the heat flux ranging from 15 – 25 kW/m2, the mass flux ranging from 100 – 200 kg/(m2•s), and the evaporation temperature of 5, 10°C. The experimental results showed that the evaporation heat transfer coefficient increased with the vapor quality except in the high vapor quality region, increased with the mass flux and the heat flux, and decreased with the saturation temperature across the experimental conditions. By comparison, the measured heat transfer coefficient of HFC-161 is higher than that of R22. In addition, the measured total pressure drop of two-phase HFC-161 in the test tube increased strongly with the mass flux within the experimental range. The presented results are helpful in designing more compact and effective heat transfer exchangers for the air-conditioning systems using HFC-161.

Documents disponibles

Format PDF

Pages : 9 p.

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 : Experimental investigation on evaporation heat transfer and pressure drop characteristics of HFC-161 in a horizontal smooth tube.
  • Identifiant de la fiche : 30006189
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

Liens


Voir d'autres communications du même compte rendu (195)
Voir le compte rendu de la conférence

Indexation