Influences of Interfacial Shear in Turbulent Film Boiling on a Horizontal Tube with External Flowing Liquid

Hai-Ping Hu

Department of Marine Engineering, National Taiwan Ocean University, Taiwan.

DOI: 10.4236/eng.2015.711066                

Abstract

The paper presents a theoretical study about turbulent film boiling on a horizontal tube with external flowing liquid. The high velocity flowing liquid is determined by potential flow theory. By using Colburn analogy, the present paper successfully addresses a new model to predict the vapor-liquid interfacial shear, applies the interfacial shear into the forced balance equation and then combines the forced balance equation, the energy equation and thermal energy balance equation. At last, both the film thickness and Nusselt number can be obtained. Besides, the present analysis also includes radiation effects, temperature ratio and eddy diffusivity. Finally, a comparison between the results of the present study and those reported in previous theoretical and experimental studies is provided.

Keywords

Eddy Diffusivity, Potential Flow, Colburn Analogy

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Bromley, L.A. (1950) Heat Transfer in Stable Film Boiling. Chemical Engineering Progress, 46, 221-227.
[2]	Nishikawa, K. and Ito, T. (1966) Two-Phase Boundary-Layer Treatment of Free Convection Film Boiling. International Journal of Heat and Mass Transfer, 9, 109-115. http://dx.doi.org/ 10.1016/0017-9310(66)90125-6
[3]	Jordan, D.P. (1968) Film and Transition Boiling. Advances in Heat Transfer, 5, 55-128. http://dx.doi.org/10.1016/S0065-2717(08)70129-1
[4]	Sakurai, A., Shiotsu, M. and Hata, K.A. (1990) General Correlation for Pool Film Boiling Heat Transfer from a Horizontal Cylinder to Subcooled Liquid: Part 1—A Theoretical Pool Film Boiling Heat Transfer Models Including Radiation Contributions and Its Analytical Solution. Journal of Heat Transfer, 112, 430-440. http://dx.doi.org/10.1115/1.2910396
[5]	Huang, L. and Witte, L.C. (1995) Forced Convection Film Boiling Heat Transfer Around Horizontal Cylinders in Highly Subcooled. ASME/JSME Thermal Engineering Conference, 2, 315-322.
[6]	Sarma, P.K., Rao, V.D. and Bergles, A.E. (1997) Turbulent Film Boiling on a Horizontal Cylinder—Effect of Temperature Dependent. Energy Conversion and Management, 38, 1135-1144. http://dx.doi.org/10.1016/S0196-8904(96)00143-4
[7]	Sarma, P.K., Subrahmanyam, T., Rao, V.D. and Bergles, A.E. (2001) Turbulent Film Boiling on a Horizontal Cylinder. International Journal of Heat and Mass Transfer, 44, 207-214. http://dx.doi.org/10.1016/S0017-9310(00)00061-2
[8]	Hu, H.P. (2008) An Analysis of Turbulent Film Boiling on a Sphere with Variable Wall Temperature. IMechE, Part C: Journal of Mechanical Engineering Science, 222, 1515-1521. http://dx.doi.org/10.1243/09544062JMES943
[9]	Kato, H., Shiwaki, N.N. and Hirota, M. (1968) On the Turbulent Heat Transfer by Free Convection From a Vertical Plate. International Journal of Heat and Mass Transfer, 11, 1117-1125. http://dx.doi.org/10.1016/0017-9310(68)90029-X
[10]	Pomerantz, M.L. (1964) Film Boiling on a Horizontal Tube in Increased Gravity Fields. Journal of Heat Transfer, 86, 213-219. http://dx.doi.org/10.1115/1.3687099