Turbulence and heat exchange in condensing vapor-liquid flow

2008 ◽  
Vol 20 (6) ◽  
pp. 065101 ◽  
Author(s):  
Djamel Lakehal ◽  
Marco Fulgosi ◽  
Sanjoy Banerjee ◽  
George Yadigaroglu
Keyword(s):  
Heat Exchange ◽  
Liquid Flow ◽  
Vapor Liquid

scholarly journals Modeling of critical filtration regimes of vapor-liquid flow

2020 ◽  
Vol 1677 ◽  
pp. 012062
Author(s):  
D P Khramtsov ◽  
D A Nekrasov ◽  
A V Vyazmin ◽  
B G Pokusaev
Keyword(s):  
Liquid Flow ◽  
Vapor Liquid

Nonsteady conjugate heat exchange during liquid flow in coaxial channels

1986 ◽  
Vol 50 (2) ◽  
pp. 162-170
Author(s):  
P. M. Kolesnikov ◽  
V. I. Bubnovich
Keyword(s):  
Heat Exchange ◽  
Liquid Flow ◽  
Conjugate Heat Exchange

Hydrodynamics and mass transfer performance of vapor–liquid flow of orthogonal wave tray column

2016 ◽  
Vol 63 ◽  
pp. 6-16 ◽  
Author(s):  
Luhong Zhang ◽  
Zhijie Li ◽  
Na Yang ◽  
Bin Jiang ◽  
Haifeng Cong ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Liquid Flow ◽  
Transfer Performance ◽  
Vapor Liquid

scholarly journals Modern approaches to the intensification of heat and mass exchange in multi-temperature condensation filters

2021 ◽  
Vol 2039 (1) ◽  
pp. 012018
Author(s):  
M V Malevany ◽  
D A Konovalov
Keyword(s):  
Mass Transfer ◽  
Heat Exchange ◽  
Heat And Mass Transfer ◽  
Liquid Flow ◽  
Mass Exchange ◽  
Single Phase ◽  
Heat And Mass Exchange ◽  
Analytical Review

Abstract The article considers the problems and features of heat and mass exchange on developed surfaces in the conditions of both single-phase and vapour-liquid flow during its condensation. We give a brief analytical review of studies of hydrodynamics and heat exchange in such systems. We analyzed the efficiency of the working channel of the condensation filter and identified problematic points. We offer possible methods for intensifying heat and mass transfer on working surfaces.

3-D Numerical Simulation of the Vapor-Liquid Flow at the Shell Side of Shell-and-Tube Heat Exchangers

2016 ◽  
Author(s):  
Qi Xiao ◽  
Ning Yang ◽  
Zhenxing Zhao ◽  
Chunhui Dai ◽  
Jun Wu ◽  
...  
Keyword(s):  
Liquid Flow ◽  
Heat Exchangers ◽  
Volume Fraction ◽  
Heated Wall ◽  
Bulk Temperature ◽  
Subcooled Boiling ◽  
Shell Side ◽  
Boiling Process ◽  
Shell And Tube ◽  
Vapor Liquid

The boiling vapor-liquid flow at the shell side of shell-and-tube heat exchangers was simulated by Euler-Euler transient 3D method in this paper. The mass and heat transfers between the two-phase fluid and heated wall for the subcooled boiling phenomenon were described by the Rensselaer Polytechnic Institute model (RPI model), while the steam condensation within the subcooled liquid was described by the Lee model. Firstly, different turbulence and interfacial force models were evaluated by comparing with the experimental data of Bartolomej (1982). It was found that the turbulence models have minor influence on the temperature and vapor volume fraction distributions. As the bubble size in the subcooled boiling process is small (usually <1 mm), the velocity slip between the vapor bubbles and the liquid is not so important. The simulation results using different drag force models are similar, and the Tomiyama model offers relatively better predictions. The non-drag forces could not significantly improve the accuracy in our simulations. Then the gas-liquid boiling flow at the shell side of shell-and-tube heat exchangers was then simulated. It was found that the water temperature increases almost linearly near the inlet zone, and the increase speed was slowed down when the bulk temperature approached to the saturated point as the boiling process happened more frequently and consumed much heat. The heat exchangers with the triangle and square configurations have similar temperature and vapor distributions. Further analyses for those two kinds of tube configurations are needed.

NUMERICAL INVESTIGATION OF VAPOR-LIQUID FLOW AND HEAT TRANSFER IN CAPILLARY POROUS MEDIA

1997 ◽  
Vol 31 (2) ◽  
pp. 143-166 ◽  
Author(s):  
A. K. Stubos ◽  
C. Pérez Caseiras ◽  
J.-M. Buchlin ◽  
N. K. KaneUopoulos
Keyword(s):  
Heat Transfer ◽  
Porous Media ◽  
Numerical Investigation ◽  
Liquid Flow ◽  
Flow And Heat Transfer ◽  
Vapor Liquid
Sign in / Sign up

Export Citation Format

Share Document