An analytical model has been developed for the study of turbulent film condensation from downward flowing vapors onto a horizontal elliptical 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 elliptical tube with nonuniform 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.
Lin, Yan-Ting and Yang, Sheng-An
"Turbulent Film Condensation on a Horizontal Elliptical Tube with Variable Wall Temperature,"
Journal of Marine Science and Technology: Vol. 12:
4, Article 9.
Available at: https://jmstt.ntou.edu.tw/journal/vol12/iss4/9