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Prévision des caractéristiques lors de la condensation des frigorigènes de remplacement du R502 à l'intérieur des tubes à surface air-frigorigène augmentée.

Prediction of condensation characteristics of alternatives to R502 inside air-refrigerant enhanced surface tubing.

Auteurs : SAMI S. M., FONTAINE M.

Type d'article : Article

Résumé

The heat transfer coefficient on the blend R408A has the highest rate among the blends under investigation. The condensation data also showed that R502 and R407B have similar heat transfer rates when plotted against the refrigerant mass flow rate. It can also be observed that, as the mass flux increases, the heat transfer coefficient also increases. Correlations were proposed to predict average heat transfer characteristics of alternatives to R502 (R507, R404A, R407B and R408A). In addition, proposed correlations were found to fairly accurately predict the two-phase flow heat transfer condensation data.

Détails

  • Titre original : Prediction of condensation characteristics of alternatives to R502 inside air-refrigerant enhanced surface tubing.
  • Identifiant de la fiche : 2001-0073
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 20 - n. 2
  • Date d'édition : 02/2000

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