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TECHNICAL PAPERS: Boiling and Condensation

Mixed-Convection Laminar Film Condensation on an Inclined Elliptical Tube

[+] Author and Article Information
M. Mosaad

  Department of Mechanical Engineering, Faculty of Engineering, P.O. Box 52, Mansoura University 35516, Egypte-mail: Mosaad@paaetms.paaet.edu.kw

J. Heat Transfer 123(2), 294-300 (Jan 21, 2000) (7 pages) doi:10.1115/1.1338136 History: Received August 28, 1999; Revised January 21, 2000
Copyright © 2001 by ASME
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References

Cheng,  S., and Tao,  J., 1988, “Study of Condensation Heat Transfer for Elliptical Pipes in a Stationary Saturated Vapor,” ASME J. Heat Transfer, 96, pp. 405–408.
Yang,  S., and Chen,  C., 1994, “Laminar Film Condensation on a Horizontal Elliptical Tube With Variable Wall Temperature,” Int. J. Heat Mass Transf., 116, pp. 3135–3141.
Fieg,  G. P., and Roetzel,  W., 1994, “Calculation of Laminar Film Condensation in/on Inclined Elliptical Tubes,” Int. J. Heat Mass Transf., 37, pp. 619–624.
Yang,  S., and Hus,  C., 1997, “Mixed-Convection Laminar Film Condensation on a Horizontal Elliptical Tube With Uniform Surface Heat Flux,” Numer. Heat Transfer, 32, pp. 85–95.
Shekriladze,  I. G., and Gomelauri,  V. I., 1966, “Theoretical Study of Laminar Film Condensation of Flowing Vapour,” Int. J. Heat Mass Transf., 9, pp. 581–591.
Memory,  S. B., Adams,  V. H., and Marto,  P. J., 1997, “Free and Forced Convection Laminar Film Condensation on Horizontal Elliptical Tubes,” Int. J. Heat Mass Transf., 40, pp. 3395–3406.
Nusselt,  W., 1916, “Des Oberflachenkondensation des Wasserdamfes,” Z. Vereines Deutsch. Ing., 60, pp. 541–564, 569–575.
Rohsenow,  E. M., 1956, “Heat Transfer and Temperature Distribution in Laminar Film Condensation,” Trans. ASME, 78, pp. 1648–1654.
Mosaad,  M., 1999, “Combined Free and Forced Convection Laminar Film Condensation on an Inclined Circular Tube With Isothermal Surface,” Int. J. Heat Mass Transf., 42, No. 21, pp. 4017–4025.
Mosaad, M., 1999, “Theoretical Study of Forced Convection Film Condensation on an Inclined Elliptical Tube,” The 5th ASME/JSME Thermal Engineering Joint Conference, San Diego, California, Vol. II, pp. 645–651.
Hassan,  K. E., and Jakob,  M., 1958, “Laminar Film Condensation of Pure Saturated Vapor on Inclined Cylinders,” ASME J. Heat Transfer, 80, pp. 887–897.

Figures

Grahic Jump Location
Physical model and coordinate system
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Variation of dimensionless film thickness around the ellipse periphery of inclined tube with infinite length
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Variation of local Nusselt number around the ellipse periphery of inclined tube with infinite length
Grahic Jump Location
Dependence of mean Nusselt number of an infinite-length inclined elliptical tube on parameter F
Grahic Jump Location
Ratio of mean Nusselt numbers of elliptical and circular inclined tubes as a function of ellipticity
Grahic Jump Location
Overall Nusselt number of inclined elliptical tube as a function of total tube length
Grahic Jump Location
Ratio of mean Nusselt numbers of inclined and horizontal elliptical tubes as a function of inclination angle φ and aspect ratio L/de, for e=0.8, and F=100

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