Numerical Simulation and Parametric Study of Forced Convective Condensation in Vertical Channel

Document Type : Research Article



Forced convective condensation in vertical channel is investigated numerically. The condensation boundary layers that occur due to temperature difference between the walls and saturation temperature of steam is simulated by the volume of fluid (VOF) method. The effect of variations in the hydraulic diameter, steam velocity, Re number and temperature difference between the wall and saturation temperature of inlet steam on heat transfer coefficients are investigated. Simulation results showed that the condensation length and heat transfer coefficient increase by the increase in the amount of inlet velocity and Reynolds number of inlet steam. Also, it was seen a reduction in temperature difference between the wall and saturated steam. 


[1]     Kakac, S., A.E. Bergles, F. Mayinger, “Heat Exchanger,Thermal-Hydraulic Fundamentals and Design”, Hemisphere publication, Mc Graw-Hill Book Company 198.
[2]     Saunders, E. A.D., “Heat Exchangers”, John Wiley & Sons, Inc, 1988.
[3]     W.X. Jin, S.C. Low, Terence Quek, “Preliminary experimental study of falling film heat transfer on a vertical doubly fluted plate”, Journal of Desalination 152 (2002) 201-206.
[4]     C.P. Ribeiro Jr., M.H. Andrade, “A heat transfer model for the steady-state simulation of climbing-falling-film plate evaporators”, Journal of Food engineering 54 (2002) 309-320.
[5]     M. El Haj Assad, Markku J. Lampinen, “Mathematical modeling of falling liquid film evaporation process”, International Journal of Refrigeration 25 (2002) 985-991.
[6]     S. Wellsandt, L. Vamling, “Heat transfer and pressure drop in a plate-type evaporator”, International Journal of Refrigeration 26 (2003) 180-188.
[7]     Lieke Wang, Bengt Sunden, “Optimal design of plate heat exchangers with and without pressure drop specifications”, Applied Thermal Engineering 23 (2003) 295-311.
[8]     Jorge A. W. Gut.  Jose M. Pinto, “Modeling of plate heat exchangers with generalized configurations”, International Journal Heat and Mass Transfer 46 (2003) 2571-2585.
[9]     Dong-Hyouck Han, Kyu-Jung Lee, Yoon-Ho Kim, “Experiments on the characteristics of evaporation of R410A in brazed plate heat exchangers with different geometric configurations”, Applied Thermal Engineering 23 (2003) 1209-1225.
[10]  Yoichi Shiomi, Shigeyasu Nakanishi, Takafumi Uehara, “Characteristics of two-phase flow in a channel formed by chevron type plates”, Experimental Thermal and Fluid Science 28 (2004) 231-235.
[11]  Jorge A. W. Gut, Jose M. Pinto, “Optimal configuration design for plate heat exchangers”, International Journal Heat and Mass Transfer 47 (2004) 4833-4848.
[12]  Reinhard Wurfel, Nikolai Ostrowski, “Experimental investigations of heat exchangers of the herringbone-type” ,International Journal of thermal sciences 43 (2004) 59-68.
[13]   P. K. Pandy, “Two-dimensional turbulent film condensation of vapors flowing inside a vertical tube and between parallel plates: a numerical approach”, Refrigeration J., 26 (2003) 492-503.
[14]  G.A. Longo , A. Gasparella, R. Sartori, “Experimental heat transfer coefficients during refrigerant vaporisation and condensation inside herringbone-type plate heat exchangers with enhanced surfaces”, International Journal Heat and Mass Transfer 47 (2004) 4125-4136.
[15]  Henning Raach, Jovan Mitrovic, “Simulation of heat and mass transfer in a multi effect distillation plant for seawater desalination", Journal of Desalination 183 (2005) 307-316
[16]  R.K.Kamali, A. Abbassi, S.A. Sadough, “A simulation model and parametric study of MED-TVC process”, EDS international conference, EuroMed (2006) 118-123.
[17]   KouhiKamali R., Abbassi, A., Sadough, S. A., Saffar Avval, M., “Thermodynamic Design and Parametric study of MED-TVC”, Desalination J., 222(2008) 607-615.
[18]   Seban, R. A., and Faghri, A., 1984, “Film Condensation in a Vertical Tube with a Closed Top”, Int. J. Heat Mass Transfer, pp. 944-948.
[19]  F. Kafi, V. Renaudin, D. Alonso, J.M. Hornut, “New MED plate desalination process: Thermal performances”, Journal of Desalination 166 (2004) 53-62.
[20]   Zhang, Y., Faghri, A., Shafii, M. B., 2001, “Capillary Blocking in Forced Convective condensation in Horizental Miniature Channels”, Journal of Heat Transfer, pp. 501-510.