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Condensation in horizontal tubes. Part II. New heat transfer model based on flow regimes.

Author(s) : HAJAL J. el, THOME J. R., CAVALLINI A.

Type of article: Article

Summary

A new general flow pattern/flow structure-based heat transfer model for condensation inside horizontal, plain tubes is proposed based on simplified flow structures of the flow regimes, and also includes the effect of liquid-vapour interfacial roughness on heat transfer. The model predicts local condensation heat transfer coefficients for the following flow regimes: annular, intermittent, stratified-wavy, fully stratified and mist flow. The new model has been compared to test data for 15 fluids obtained in nine independent research laboratories.

Details

Original title: Condensation in horizontal tubes. Part II. New heat transfer model based on flow regimes.
Record ID : 2004-0522
Languages: English
Subject: HFCs alternatives
Source: International Journal of Heat and Mass Transfer - vol. 46 - n. 18
Publication date: 2003/08

Links

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Indexing

Themes: CFCs;
Thermodynamics and changes of state;
HCFCs;
Evaporators, condensers and other heat exchangers;
HFCs;
Mass transfer;
Refrigerant circulation: piping, control, automation, safety
Keywords: Horizontal tube; Heat transfer coefficient; HCFC; CFC; Bare pipe; Modelling; HFC; Refrigerant; Condensation