Prediction of two-phase condensation in horizontal tubes using probabilistic flow regime maps.
Author(s) : JASSIM E. W., NEWELL T. A., CHATO J. C.
Type of article: Article
Summary
A flow regime based condensation model is developed for refrigerants in single, smooth, horizontal tubes utilizing a generalized probabilistic two-phase flow map. Flow map time fraction information is used to provide a physically based weighting of heat transfer models developed for different flow regimes. The developed model is compared with other models in the literature, with experimentally obtained condensation data of R-134a in 8.92 mm diameter tubes, and with data found in the literature for 3.14, 7.04, and 9.58 mm tubes with R-11, R-12, R-134a, R-22, R-410A, and R-32/R-125 (60/40% by weight) refrigerants and a wide range of mass fluxes and qualities. [Reprinted with permission from Elsevier. Copyright, 2007].
Details
- Original title: Prediction of two-phase condensation in horizontal tubes using probabilistic flow regime maps.
- Record ID : 2008-1231
- Languages: English
- Source: International Journal of Heat and Mass Transfer - vol. 51 - n. 3-4
- Publication date: 2008/02
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Indexing
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Themes:
HCFCs;
HFCs;
Heat transfer;
Mass transfer;
Two-phase flow;
Blends - Keywords: Two-phase flow; Refrigerating system; R410A; R134a; Horizontal tube; Heat transfer; R32; R22; R125; Modelling; Refrigerant; Condenser; Condensation
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