Hydrodynamics and mass transfer in turbulent liquid film flow involving the inlet portion

1981 ◽  
Vol 46 (2) ◽  
pp. 467-477 ◽  
Author(s):  
L. P. Kholpanov ◽  
V. A. Malyusov ◽  
N. M. Zhavoronkov

Relationship for mass transfer coefficient in turbulent liquid film flow involving the inlet section have been derived theoretically. It was found that previously published experimental results were well explained by this theory.

1981 ◽  
Vol 46 (1) ◽  
pp. 161-172
Author(s):  
Leopold Vyoral ◽  
Vladimír Míka

Experimental results on absorption of CO2 in liquid film flowing downwards the string of spheres are presented for liquids with viscosities in the range from 1 to 10.1 mPa s. The results correspond qualitatively to the Levich's analysis of mass transfer into the flowing film with wavy surface. Equation relating dimensionless numbers is proposed for calculation of the volumetric mass transfer coefficient.


2015 ◽  
Vol 31 (4) ◽  
Author(s):  
Reza Afshar Ghotli ◽  
Abdul Raman Abdul Aziz ◽  
Shaliza Ibrahim

AbstractA general review on correlations to evaluate mass transfer coefficients in liquid-liquid was conducted in this work. The mass transfer models can be classified into continuous and dispersed phase coefficients. The effects of drop size and interfacial area on mass transfer coefficient were investigated briefly. Published experimental results for both continuous and dispersed phase mass transfer coefficients through different hydrodynamic conditions were considered and the results were compared. The suitability and drawbacks of these correlations depend on the operating conditions and hydrodynamics. Although the results of these models are reasonably acceptable, they could not properly predict the experimental results over a wide range of designs and operating conditions. Therefore, proper understanding of various factors affecting mass transfer coefficient needs to be further extended.


AIChE Journal ◽  
2012 ◽  
Vol 59 (1) ◽  
pp. 295-302 ◽  
Author(s):  
J. Grünig ◽  
S.-J. Kim ◽  
M. Kraume

Author(s):  
Takayuki YAMAGATA ◽  
Minoru KOMATSU ◽  
Nobuyuki FUJISAWA ◽  
Fumio INADA

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 165
Author(s):  
Boyang Li ◽  
Xin Geng ◽  
Zhouhua Jiang ◽  
Yu Hou ◽  
Wei Gong

In order to study the effect of BaO or B2O3 on the absorption of Ti inclusions, the effects of mold fluxes with different contents of BaO (0~15%) or B2O3 (0~15%) on the mass transfer coefficients of TiO2 or TiN were studied with the rotating cylinder method. The experimental results show that with the addition of BaO in the mold flux, the mass transfer coefficient of TiO2 increases from 4.58 × 10−4 m/s to 6.08 × 10−4 m/s, that of TiN increases from 3.09 × 10−4 m/s to 4.41 × 10−4 m/s, 2CaO·MgO·2SiO2 is transformed into BaO·2CaO·MgO·2SiO2, and the Ti inclusions combine with CaO to form CaTiO3. With the addition of B2O3 in the mold flux, the mass transfer coefficient of TiO2 increases from 4.58 × 10−4 m/s to 7.46 × 10−4 m/s, that of TiN increases from 3.09 × 10−4 m/s to 5.50 × 10−4 m/s, CaO and B2O3 combine to 2CaO·B2O3, and Ti inclusions exist in the form of TiO2. During the experiment, TiN will be transformed into titanium oxide.


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