Heat transfer enhancement using laminar gas-liquid segmented plug flows / Y. S. Muzychka in Journal of heat transfer, Vol. 133 N° 4 (Avril 2011)  

Public ISBD [article]  inJournal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041902/1-9] Titre : Heat transfer enhancement using laminar gas-liquid segmented plug flows Type de document : texte imprimé Auteurs : Y. S. Muzychka, Auteur ; Edmond J. Walsh, Auteur ; P. Walsh, Auteur Année de publication : 2011 Article en page(s) : pp. [041902/1-9] Note générale : Physique Langues : Anglais (eng) Mots-clés : Heat transfer Segmented flow Two phase Thermal enhancement Graetz Plug Poiseuille Taylor Index. décimale : 536 Chaleur. Thermodynamique Résumé : Heat transfer enhancement using segmented nonboiling gas-liquid flow is examined. Segmentation results in a two phase flow of liquid/gas having a constant liquid fraction; i.e., no phase change occurs. In this flow configuration, enhanced heat transfer occurs as a result of a shorter effective thermal length due to internal fluid circulation in the liquid plugs. A simple theory for laminar segmented flows is developed based on scaled Graetz theory and comparisons made with existing published data from the literature and new experimental data obtained in a companion study. The proposed model is valid for an isothermal tube wall provided that the axial residence time of the flow is such that dimensionless tube length L[small star, filled] DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...] [article] Heat transfer enhancement using laminar gas-liquid segmented plug flows [texte imprimé] / Y. S. Muzychka, Auteur ; Edmond J. Walsh, Auteur ; P. Walsh, Auteur . - 2011 . - pp. [041902/1-9]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041902/1-9] Mots-clés : Heat transfer Segmented flow Two phase Thermal enhancement Graetz Plug Poiseuille Taylor Index. décimale : 536 Chaleur. Thermodynamique Résumé : Heat transfer enhancement using segmented nonboiling gas-liquid flow is examined. Segmentation results in a two phase flow of liquid/gas having a constant liquid fraction; i.e., no phase change occurs. In this flow configuration, enhanced heat transfer occurs as a result of a shorter effective thermal length due to internal fluid circulation in the liquid plugs. A simple theory for laminar segmented flows is developed based on scaled Graetz theory and comparisons made with existing published data from the literature and new experimental data obtained in a companion study. The proposed model is valid for an isothermal tube wall provided that the axial residence time of the flow is such that dimensionless tube length L[small star, filled] DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...]

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