Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation

›› 2011, Vol. 19 ›› Issue (6): 944-954.

Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation

李成, 李俊明

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

收稿日期:2010-09-17 修回日期:2011-06-16 出版日期:2011-12-28 发布日期:2012-04-24
通讯作者: LI Junming, E-mail: lijm@tsinghua.edu.cn
基金资助:
Supported by the National Basic Research Program of China (2011CB706904);Beijing Natural Science Foundation (3071001)

Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation

LI Cheng, LI Junming

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

Received:2010-09-17 Revised:2011-06-16 Online:2011-12-28 Published:2012-04-24
Supported by:
Supported by the National Basic Research Program of China (2011CB706904);Beijing Natural Science Foundation (3071001)

摘要/Abstract

摘要： Condensation of humid air along a vertical plate was numerically investigated, with the mathematical model built on the full boundary layer equations and the film-wise condensation assumption. The velocity, heat and mass transfer characteristics at the gas-liquid interface were numerical analyzed and the results indicated that it was not reasonable to neglect the condensate film from the point of its thickness only. The condensate film thickness, interface temperature drop and the interface tangential velocity affect the physical fields weakly. However, the subcooling and the interface normal velocity were important factors to be considered before the simplification was made. For higher wall temperature, the advective mass transfer contributed much to the total mass transfer. Therefore, the boundary conditions were the key to judge the rationality of neglecting the condensate film for numerical solutions. The numerical results were checked by comparing with experiments and correlations.

关键词: condensation, binary mixture, convective heat and mass transfer

Abstract: Condensation of humid air along a vertical plate was numerically investigated, with the mathematical model built on the full boundary layer equations and the film-wise condensation assumption. The velocity, heat and mass transfer characteristics at the gas-liquid interface were numerical analyzed and the results indicated that it was not reasonable to neglect the condensate film from the point of its thickness only. The condensate film thickness, interface temperature drop and the interface tangential velocity affect the physical fields weakly. However, the subcooling and the interface normal velocity were important factors to be considered before the simplification was made. For higher wall temperature, the advective mass transfer contributed much to the total mass transfer. Therefore, the boundary conditions were the key to judge the rationality of neglecting the condensate film for numerical solutions. The numerical results were checked by comparing with experiments and correlations.

Key words: condensation, binary mixture, convective heat and mass transfer

李成, 李俊明. Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation[J]. , 2011, 19(6): 944-954.

LI Cheng, LI Junming. Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation[J]. , 2011, 19(6): 944-954.

参考文献

1 Comini, G., Savino, S., “Latent and sensible heat transfer in air-cooling applications”, Int. J. Num. Methods Heat Fluid Flow, 17(6), 608-617(2007)
2 Ren, N., Gu, B., “Experimental study and numerical simulation of heat and mass transfer on plain fin in wet conditions”, J. Chem. Ind. Eng.(China), 58(7), 1626-1631(2007).(in Chinese)
3 Warmuzinski, K., Bartelmus, G., Berezowski, M., “Modeling of countercurrent partial condenser for light hydrocarbon streams containing hydrogen”, Chem. Eng. Process., 37(5), 389-403(1998).
4 Kang, H.C., Kim, M.H., “Characteristics of film condensation of supersaturated steam-air mixture on a flat plate”, Int. J. Multiphase Flow, 25(8), 1601-1618(1999).
5 Cheng, H.G., Wang, S.C., “Modelling and experimental investigation of humidificationdehumidification desalination using a carbonfilled-plastics shell-tube column”, Chin. J. Chem. Eng., 15(4) 478-475(2007).
6 Quan, Z.H., Chen, Y.C., Ma, C.F., “Experimental study of fouling on heat transfer surface during forced convective heat transfer” Chin. J. Chem. Eng., 16(4), 535-540(2008).
7 Koh, J.C.Y., Sparrow, E.M., Hartnett, J.P., “The two phase boundary layer in laminar film condensation”, Int. J. Heat Mass Transfer, 2(1-2), 69-82(1961).
8 Volchkov, E.P., Terekhov, V., Terekhov, V., “A numerical study of boundary-layer heat and mass transfer in a forced flow of humid air with surface steam condensation”, Int. J. Heat Mass Transfer, 47(6-7), 1473-1481(2004).
9 Brdlik, P.M., Kozhinov, I.A., Petrov, N.G., “An experimental heatand mass-transfer study of humid-air flows with steam condensation on a vertical surface under national-convection conditions”, Journal of Engineering Physics and Thermophysics(Russia), 8(2), 243-246(1965).
10 Desrayand, G., Lauriat, G., “Heat and mass transfer analogy for condensation of humid air in a vertical channel”, Heat Mass Transfer, 37, 67-76(2001).
11 Martín-Valdepe as, J.M., Jiménez, M.A., Martín-Fuertes, F., Fernández, J.A., “Comparison of film condensation models in presence of non-condensable gases implemented in a CFD Code”, Heat Mass Transfer, 41(11), 961-976(2004).
12 Yan, W.M., “Mixed convection heat transfer in a vertical channel with film evaporation”, Can. J. Chem. Eng., 71, 54-62(1993).
13 Poots, G., Miles, R.G., “Effects of variable properties on laminar film condensation of saturated steam on a vertical flat plate”, Int. J. Heat Mass Transfer, 10(12), 1677-1692(1967).
14 Stephan, K., “Interface temperature and heat transfer in forced convection laminar film condensation of binary mixtures”, Int. J. Heat Mass Transfer, 49(3-4), 805-809(2006).
15 Liao, Y., Vierow, K., Dehbi, A., Guentay, S., “Transition from natural to mixed convection for steam-gas flow condensing along a vertical plate”, Int. J. Heat Mass Transfer, 52(1-2), 366-375(2009).
16 Ghiaasiaan, S.M., Two-phase Flow, Boiling and Condensation, Cambridge University Press, New York, 21-59(2008).
17 Srzic, V., Soliman, H.M., Orimiston, S.J., “Analysis of laminar mixed-convection condensation on isothermal plates using the full boundary-layer equations: mixtures of a vapor and a lighter gas”, Int. J. Heat Mass Transfer, 42(4), 685-695(1999).
18 Hammou, Z.A., Benhamou, B., Galanis, N., Orfi, J., “Laminar mixed of humid air in a vertical channel with evaporation or condensation at the wall”, Int. J. Therm. Sci., 43(6), 531-539(2004).
19 Tao, W.Q., Numerical Heat Transfer, 2nd edition, Xi’an Jiao Tong University Press, Xi’an, 442-458(2001).(in Chinese)
20 Threlkeld, J.L., Thermal Environmental Engineering, 2nd edition, Prentice-Hall, Englewood Cliffs, New Jersey, 263-267(1970).
21 Rose, J.W., “Condensation heat transfer fundamentals”, Chem. Eng. Res. Des., 76(2), 143-152(1998).
22 Dharma, R.V., Murali, K.V., Sharma, K.V., Mohana-Rao, P.J.V., “Convection condensation of vapor in the presence of a non-condensable gas of high concentration in laminar flow in a vertical pipe”, Int. J. Heat Mass Transfer, 51(25-26), 6090-6101(2008).
23 Siow, E.C., Ormiston, S.J., Soliman, H.M., “Two-phase modeling of laminar film condensation from vapor-gas mixtures in declining parallel-plate channels”, Int. J. Therm. Sci., 46(5), 458-466(2007).
24 Rosa, J.C., Escrivá, A., Herranz, L.E., Cicero, T., Mu oz-Cobo, J.L., “Review on condensation on the containment structures”, Progr. Nucl. Energy, 51(1), 32-66(2009).
25 Takarada, M., Ikeda, S., Izumi, M., “Forced convection, and heat and mass transfer from humid air under condensation conditions”, Proceedings of Heat Transfer, Fluid Mech. Thermodyn., 2, 1103-1116(1997).
26 Wang, X.D., Peng, X.F., Duan, Y.Y., Wang, B.X., “Dynamics of spreading of liquid on solid surface”, Chin. J. Chem. Eng., 15(5), 730-737(2007).
27 Lebedev, P.D., Baklastov, A.M., Sergazin, Z.F., “Aerodynamics, heat and mass transfer in vapor condensation from humid air on a flat plate in a longitudinal flow in asymmetrically cooed slot”, Int. J. Heat Mass Transfer, 12, 833-842(1969).

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Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation

Laminar Forced Convection Heat and Mass Transfer of Humid Air across a Vertical Plate with Condensation

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