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Turbulent Film Condensation on a Nonisothermal Horizontal Tube

Published online by Cambridge University Press:  05 May 2011

Yan-Ting Lin  and
Sheng-An Yang
Yan-Ting Lin*
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan 807, R.O.C.
Sheng-An Yang*
Affiliation:
Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan 807, R.O.C.
*
* Postgraduate student
** Professor
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Abstract

A simple model has been developed for the study of turbulent film condensation from downward flowing vapors onto a horizontal circular tube with variable wall temperature. The interfacial shear at the vapor condensate film is evaluated with the help of Colburn analogy. The condensate film flow and local/or mean heat transfer characteristics from a horizontal tube with non-uniform temperature variation under the effect of Froude number, sub-cooling parameter and system pressure parameter has been conducted. Although the non-uniform wall temperature variation has an appreciable influence on the local film flow and heat transfer; however, the dependence of mean heat transfer on the non-uniform wall temperature variation is almost negligible.

Keywords

TurbulentFilm condensationVariable wall temperatureTube
Type
Articles
Information
Journal of Mechanics , Volume 21 , Issue 4 , December 2005 , pp. 235 - 242
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2005

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References

1.Nusselt, W., “Die oberflachen kondensation des wasserdampers,” Zeitsehrift desvereines eutsher Ingenieure, 60, pp. 541–546 (1916).Google Scholar
2.Shekriladze, I. G. and Gomelauri, V. I., “Theoretical Study of Laminar Film Condensation of Flowing Vapor,” Int. J. Heat Mass Transfer, 9, pp. 581–591 (1966).CrossRefGoogle Scholar
3.Rose, J. W., “Effect of Pressure Gradient in Forced Film Condensation on a Horizontal Tube-Effect of Surface Temperature Variation,” Int. J. Heat Mass Transfer, 27, pp. 39–47 (1984).CrossRefGoogle Scholar
4.Memory, S. B., Lee, W. C. and Rose, J. W., “Forced Convection Film Condensation on a Horizontal Tube-Effect of Surface Temperature Variation,” Int. J. Heat Mass Transfer, 36, pp. 1671–1676 (1993).CrossRefGoogle Scholar
5.Memory, S. B., Lee, W. C. and Rose, J. W., “Forced Convection Film Condensation on a Horizontal Tube-Influence of Vapor Boundary-Layer Separation,” J. of Heat Transfer, 117, pp. 529–533 (1995).CrossRefGoogle Scholar
6.Michael, A. G., Rose, J. W. and Daniels, L. C., “Forced Convection Condensation on a Horizontal Tube-Experiments with Vertical Down-Flow of Steam,” J. of Heat Transfer, 111, pp. 792–797 (1989).CrossRefGoogle Scholar
7.Sarma, R. K., Vijayalakshmi, B., Mayinger, F. and Kakac, S., “Turbulent Film Condensation on a Horizontal Tube with External Flow of Pure Vapors,” Int. J. Heat Mass Transfer, 41, pp. 537–545 (1998).CrossRefGoogle Scholar
8.Kato, H., Shiwaki, N. N. and Hirota, M., “On the Turbulent Heat Transfer by Free Convection from a Vertical Plate,” Int. J. Heat Mass Transfer, 11, pp. 1117–1125 (1968).Google Scholar
9.Homescu, D. and Panday, P. K., “Forced Convection Condensation on a Horizontal Tube: Influence of Turbulence in the Vapor and Liquid Phases,” J. of Heat Transfer, 121, pp. 874–885 (1999).CrossRefGoogle Scholar
10.Fujii, T., Uehara, H. and Kruata, C., “Laminar Film Condensation of Flowing Vapour on a Horizontal Cylinder,” Int. J. Heat Mass Transfer, 15, pp. 235–246 (1972).Google Scholar
11.Michael, A. G., Rose, J. W. and Daniels, L. C., “Forced Convection Condensation on a Horizontal Tube-Experimental with Vertical Downflow of Steam,” J. of Heat Transfer, 111, pp. 792–797 (1989).CrossRefGoogle Scholar
12.Yang, S. A., “Superheated Laminar Film Condensation on a Nonisothermal Horizontal Tube,” J. of Thermophysics and Heat Transfer, 11(4), pp. 526–532 (1997).CrossRefGoogle Scholar
13.Hsu, C. H. and Yang, S. A., “Pressure Gradient and Variable Wall Temperature Effects during Filmwise Condensation from Downward Flowing Vapors onto a Horizontal Tube,” Int. J. Heat Mass Transfer, 42, pp. 2419–2426 (1999).CrossRefGoogle Scholar
14.Incropera, F. P. and DeWitt, D. P., “The Cylinder in Cross Flow,” Introduction to Heat Transfer, 2nd Ed., 7, Wiley, New York, pp. 380–381 (1990).Google Scholar
15.Bejan, A., “Turbulent Boundary Layer Flow,” Convection Heat Transfer, 2nd Ed., Wiley, 7, New York, pp. 293–324 (1995).Google Scholar