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Condensation flow patterns inside plain and microfin tubes: A review / L. Doretti in International journal of refrigeration, Vol. 36 N° 2 (N° spécial) (Mars 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 2 (N° spécial) (Mars 2013) . - pp. 567–587 Titre : Condensation flow patterns inside plain and microfin tubes: A review Titre original : Configuration de l'écoulement à l'intérieur de tubes lisses et à microailettes Type de document : texte imprimé Auteurs : L. Doretti, Auteur ; C. Zilio, Auteur ; S. Mancin, Auteur Année de publication : 2013 Article en page(s) : pp. 567–587 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Condensation;  Flow  pattern;  Smooth  tube;  Microfin  tube;  Flow  map Résumé : Nowadays, plain and microfin tubes are largely used in refrigeration and air conditioning industries for condensation inside macroscale tubes. The mechanisms of condensation heat transfer and pressure drop are tightly linked with the prevailing two-phase flow regime, but not much evidence about the effect of microfins on the condensation flow patterns is still available in the open literature. A deep overview about the relevant literature on two phase flow pattern visualization inside tube considering experimental techniques, suggested flow regime maps and models for heat transfer coefficient is presented. Furthermore, this paper presents the extensive experimental contribution of the Authors with smooth and microfin tubes. The collected data for plain tube are compared against different flow pattern maps. The flow visualizations obtained for microfin tube are compared with those of plain tube; moreover, two flow regime maps proposed by present Authors for smooth and enhanced tubes are validated. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712002812 [article] Condensation flow patterns inside plain and microfin tubes: A review = Configuration de l'écoulement à l'intérieur de tubes lisses et à microailettes [texte imprimé] / L. Doretti, Auteur ; C. Zilio, Auteur ; S. Mancin, Auteur . - 2013 . - pp. 567–587. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 2 (N° spécial) (Mars 2013) . - pp. 567–587 Mots-clés : Condensation;  Flow  pattern;  Smooth  tube;  Microfin  tube;  Flow  map Résumé : Nowadays, plain and microfin tubes are largely used in refrigeration and air conditioning industries for condensation inside macroscale tubes. The mechanisms of condensation heat transfer and pressure drop are tightly linked with the prevailing two-phase flow regime, but not much evidence about the effect of microfins on the condensation flow patterns is still available in the open literature. A deep overview about the relevant literature on two phase flow pattern visualization inside tube considering experimental techniques, suggested flow regime maps and models for heat transfer coefficient is presented. Furthermore, this paper presents the extensive experimental contribution of the Authors with smooth and microfin tubes. The collected data for plain tube are compared against different flow pattern maps. The flow visualizations obtained for microfin tube are compared with those of plain tube; moreover, two flow regime maps proposed by present Authors for smooth and enhanced tubes are validated. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712002812