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Prediction of condensation pressure drop inside herringbone microfin tubes / Hasan M. M. Afroz in International journal of refrigeration, Vol. 34 N° 4 (Juin 2011) 

Public ISBD [article]  in International journal of refrigeration > Vol. 34 N° 4 (Juin 2011) . - pp. 1057-1065 Titre : Prediction of condensation pressure drop inside herringbone microfin tubes Titre original : Prévision de la chute de pression lors de la condensation à l'intérieur de tubes à micro-ailettes à chevrons Type de document : texte imprimé Auteurs : Hasan M. M. Afroz, Auteur ; Akio Miyara, Auteur Année de publication : 2011 Article en page(s) : pp. 1057-1065 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Condensation  Tube  Micro-fin  Pressure  drop  Prediction Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A generalized prediction correlation of condensation pressure drop inside herringbone microfin tubes has been proposed which includes the new empirical correlation of two-phase frictional multiplier and author’s previously proposed correlation of single-phase friction factor for herringbone microfin tubes. Three existing correlations and the newly proposed correlation of condensation pressure drop for herringbone microfin tubes have been compared with the available experimental data of five herringbone microfin tubes during condensation of R410A. From the results of overall root-mean-square (r.m.s.) deviations of relative residuals of condensation pressure drop for all tubes, proposed correlation shows best performance. Proposed correlation can also predict other experimental data of two-phase pressure drop of R410A during adiabatic two-phase flow and previously measured data of condensation pressure drop of R22 within ±20% which are not used to develop the proposed correlation. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000491 [article] Prediction of condensation pressure drop inside herringbone microfin tubes = Prévision de la chute de pression lors de la condensation à l'intérieur de tubes à micro-ailettes à chevrons [texte imprimé] / Hasan M. M. Afroz, Auteur ; Akio Miyara, Auteur . - 2011 . - pp. 1057-1065. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 34 N° 4 (Juin 2011) . - pp. 1057-1065 Mots-clés : Condensation  Tube  Micro-fin  Pressure  drop  Prediction Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A generalized prediction correlation of condensation pressure drop inside herringbone microfin tubes has been proposed which includes the new empirical correlation of two-phase frictional multiplier and author’s previously proposed correlation of single-phase friction factor for herringbone microfin tubes. Three existing correlations and the newly proposed correlation of condensation pressure drop for herringbone microfin tubes have been compared with the available experimental data of five herringbone microfin tubes during condensation of R410A. From the results of overall root-mean-square (r.m.s.) deviations of relative residuals of condensation pressure drop for all tubes, proposed correlation shows best performance. Proposed correlation can also predict other experimental data of two-phase pressure drop of R410A during adiabatic two-phase flow and previously measured data of condensation pressure drop of R22 within ±20% which are not used to develop the proposed correlation. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000491