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Heat transfer characteristics of refrigerant-oil mixtures flow boiling in a horizontal C-shape curved smooth tube / Haitao Hu in International journal of refrigeration, Vol. 33 N° 5 (Août 2010) 

Public ISBD [article]  in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 932-943 Titre : Heat transfer characteristics of refrigerant-oil mixtures flow boiling in a horizontal C-shape curved smooth tube Titre original : Caractéristiques du transfert de chaleur de mélanges frigorigène/huile en ébullition en écoulement à l'intérieur d'un tube lisse horizontal sous forme de C Type de document : texte imprimé Auteurs : Haitao Hu, Auteur ; Guoliang Ding, Auteur ; Wenjian Wei, Auteur Année de publication : 2010 Article en page(s) : pp. 932-943 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Heat  exchanger  Geometry  Heat  transfer  Boiling  Mixture  Refrigerant  Oil  Correlation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Two-phase heat transfer characteristics of R410A–POE oil mixture and R22-mineral oil mixture flow boiling inside a horizontal C-shape curved smooth tube with an outside diameter of 7.0 mm and a curvature ratio of 60 were investigated experimentally. The test results show that the curvature of C-shape curved smooth tube deteriorates the flow boiling heat transfer, and the ratios of the heat transfer coefficients in C-shape curved smooth tube to those in straight smooth tube for R410A–oil mixture and R22–oil mixture are within 0.46–0.74 and 0.74–0.90, respectively. A correlation to predict the heat transfer coefficients of refrigerant-oil mixtures flow boiling inside C-shape curved smooth tube was developed based on mixture properties of refrigerant-oil, and it could agree with 96% of the experimental data within a deviation of ±20%. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000411 [article] Heat transfer characteristics of refrigerant-oil mixtures flow boiling in a horizontal C-shape curved smooth tube = Caractéristiques du transfert de chaleur de mélanges frigorigène/huile en ébullition en écoulement à l'intérieur d'un tube lisse horizontal sous forme de C [texte imprimé] / Haitao Hu, Auteur ; Guoliang Ding, Auteur ; Wenjian Wei, Auteur . - 2010 . - pp. 932-943. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 932-943 Mots-clés : Heat  exchanger  Geometry  Heat  transfer  Boiling  Mixture  Refrigerant  Oil  Correlation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Two-phase heat transfer characteristics of R410A–POE oil mixture and R22-mineral oil mixture flow boiling inside a horizontal C-shape curved smooth tube with an outside diameter of 7.0 mm and a curvature ratio of 60 were investigated experimentally. The test results show that the curvature of C-shape curved smooth tube deteriorates the flow boiling heat transfer, and the ratios of the heat transfer coefficients in C-shape curved smooth tube to those in straight smooth tube for R410A–oil mixture and R22–oil mixture are within 0.46–0.74 and 0.74–0.90, respectively. A correlation to predict the heat transfer coefficients of refrigerant-oil mixtures flow boiling inside C-shape curved smooth tube was developed based on mixture properties of refrigerant-oil, and it could agree with 96% of the experimental data within a deviation of ±20%. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000411