Titre :
|
Two phase flow heat transfer of binary mixtures inside enhanced surface tubing
|
Auteurs :
|
S. Sami ;
B. Poirier
|
Type de document :
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article/chapitre/communication
|
Année de publication :
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1998
|
Format :
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p.763-773
|
Langues:
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= Anglais
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Catégories :
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SCIENCES FONDAMENTALES ET APPLIQUEES
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Mots-clés:
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TRANSFERT DE CHALEUR
;
MELANGE BINAIRE
;
MELANGE AZEOTROPIQUE
;
REFRIGERANT
;
CONDENSATION
;
CONVECTION FORCEE
|
Résumé :
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The primary heat transfer parameters such as coefficient of heat transfer and pressure drop observed during condensation of binary azeotropic refrigerant mixtures R-410a (R125/R32: 50/50), and R-507 (R125/R143a: 50/50) are presented in this paper. Experiments showed that for Reynolds numbers higher than 4.2 E06, R-410a appears to have greater heat transfer rates more than the other blends under investigation. Furthermore, it is quite evident from this data that R-507 has the highest pressure drop among the refrigerants under investigation.
|
Source :
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International communication heat mass transfer, vol 25, n°6
|