Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Comparative Analysis of Models for Free Convective Film Condensation on an Isothermal Vertical Wall

등온 수직벽의 자연대류 막응축 모델에 관한 비교분석

  • 성현찬 (금오공과대학교 대학원 기계공학부) ;
  • 김경훈 (금오공과대학교 대학원 기계공학부)
  • Published : 2000.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

The existing theoretical models for steady two-dimensional free convective laminar film condensation of pure saturated or superheated vapor under atmospheric pressure on isothermal vertical wall have been reviewed. To investigate the effects such as inertia, thermal convective and liquid-vapor interface shear stress, the models of constant or variable properties in liquid film for condensation of saturated vapor are compared in detail with Nusselt model. Also, for condensation of superheated vapor, the effects of superheated temperature and variable properties in liquid and vapor layers are examined and then a new correlation is proposed to predict the heat transfer. The results are in good agreement with the Shang's correlation within 2% errors.

Keywords

References

  1. Mills, A. F., 1995, Heat and Mass Transfer, Irwin, pp. 596-625
  2. Incropera, F. P., and DeWitt, D. P., 1996, Fundamentals of Heat and Mass Transfer, Wiley, pp. 554-568
  3. Carey, V. P., 1992, Liquid-Vapor Phase-Change Phenomena : An Introduction to the Thermophysics of Vaporization and Condensation Processes in Heat Transfer Equipment, Hemisphere, pp. 337-360
  4. Cengel, Y. A., 1998, Heat Transfer, McGraw-Hill, pp. 468-475
  5. Rohsenow, W. M., 1956, 'Heat Transfer and temperature distribution in laminar film condensation,' Trans. Am. Soc. Mech. Engrs 78, pp. 1645-1648
  6. Sparrow, E. M., and Gregg, J. L., 1959, 'A Boundary-Layer Treatment of Laminar Film Condensation,' J. Heat Trasfer 81, pp. 13-18
  7. Koh, J. C. Y., Sparrow, E. M. and Hartnett, J. P., 1961, 'The Two Phase Boundary Layer in Laminar Film Condensation,' Int. J. Heat Mass Transfer, Vol. 2, pp. 69-82 https://doi.org/10.1016/0017-9310(61)90015-1
  8. Chen, M. M., 1963, 'An Analytical Study of Laminar Film Condensation:Part 1-fiat plates,' Transaction of the ASME: J. of Heat Trasfer, Vol. 81, pp. 48-54
  9. McAdams, W. H., 1954, Heat Transmission, 3rd edn., McGraw-Hill, pp. 329-338
  10. Labuntsov, D.A., 1957, 'Effect of Temperature Dependence of Physical Parameters of Condensate on Heat Transfer in Film Condensation of Steam,' Teploenergetika 4(2), 49-51
  11. Minkowycz, W. J. and Sparrow, E. M., 1966, 'Condensation Heat Transfer in the Presence of Noncondensables, Interfacial Resistance, Superheating, Variable Properties, and Diffusion,' Int. J. Heat Mass Transfer, Vol. 9, pp. 1125-1144 https://doi.org/10.1016/0017-9310(66)90035-4
  12. Rose, J. W., 1998, 'Condensation Heat Transfer Fundamentals,' Trans. ICHemE., Vol. 76, Part A, pp. 143-152 https://doi.org/10.1205/026387698524712
  13. Shang, D. Y. and Wang, B. X., 1997, 'An Extended Study on Steady-State Laminar Film Condensation of a Superheated Vapor on an Isothermal Vertical Plate,' Int. J. Heat Mass Transfer, Vol. 40, pp. 931-941 https://doi.org/10.1016/0017-9310(96)00101-9
  14. Webb, R. L., 1998, 'Convective Condensation of Superheated Vapor,' Trans. of the ASME: J. Heat Transfer, Vol. 120, pp. 418-421
  15. PROPATH GROUP, 1990, Program Package for Thermophysical Properties of Fluids (PROPATH), ver. 9.1/MS DOS