An Analytical Model to Predict Condensation of R-410A in a Horizontal Rectangular Channel

[+] Author and Article Information
Z. Guo, N. K. Anand

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123

J. Heat Transfer 122(3), 613-620 (Feb 21, 2000) (8 pages) doi:10.1115/1.1286817 History: Received November 14, 1998; Revised February 21, 2000
Copyright © 2000 by ASME
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Model. (a) Idealized schematic of the stratified wavy flow during condensation. (b) A model for calculating heat transfer through the top, the vertical, and the bottom walls. (c) Schematic of the external condensation on a vertical wall modeled by Nusselt 6.
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Condensation along the vertical wall. (a) Schematic for condensation of a flowing vapor on a vertical wall. (b) A control volume and discretization grid on the vertical wall.
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Liquid refrigerant film thickness on the vertical wall due to condensation. (a) G=143.8 kg/s m2. (b) G=178.1 kg/s m2.
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Comparison of the analytically predicted local Nusselt number with the current experimental data for the rectangular channel and the correlations of others for circular tubes. (a) G=73.9 kg/s m2. (b) G=114.2 kg/s m2. (c) G=143.8 kg/s m2. (d) G=178.1 kg/s m2.
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Comparison of the experimental data of Guo 5 with the current analytical predictions




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