Research output: Contribution to journal › Article › peer-review
Experimental Study of Mass Transfer in a Plug Regime of Immiscible Liquid–Liquid Flow in a T-Shaped Microchannel. / Vostretsov, Semyon; Yagodnitsyna, Anna; Kovalev, Alexander et al.
In: Energies, Vol. 16, No. 10, 4059, 05.2023.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Experimental Study of Mass Transfer in a Plug Regime of Immiscible Liquid–Liquid Flow in a T-Shaped Microchannel
AU - Vostretsov, Semyon
AU - Yagodnitsyna, Anna
AU - Kovalev, Alexander
AU - Bilsky, Artur
N1 - The slug flow properties study (Section 3.1) was supported by a grant from the Russian Science Foundation (project No 21-79-10307). Mass transfer measurements (Section 3.2) have been financially supported by the Ministry of Science and Higher Education of the Russian Federation, Project No 075-15-2022-1043.
PY - 2023/5
Y1 - 2023/5
N2 - In the presented work, the influence of parameters such as the total flow rate of phases, the ratio of flow rates, and residence time on mass transfer during the two-phase flow of immiscible liquids in a T-shaped microchannel was investigated using the micro-LIF technique. The study focused on the plug flow regime, where a 70% water–glycerol solution was used as the dispersed phase, and tri-n-butyl phosphate (TBP) was used as the carrier phase. We determined the transition boundary between the dispersed and parallel flow patterns and calculated the plug length and velocities to develop a mass transfer model. Furthermore, we measured the partition coefficient for the set of liquids used in the experiments and analyzed the concentration fields inside the slugs of the continuous phase at various distances downstream of the T-junction. Using the obtained data, we determined the extraction efficiency and overall volumetric mass transfer coefficient and established dependencies demonstrating the effect of the flow-rate ratio, total flow rate, and the residence time on mass transfer rate and extraction efficiency. Finally, we developed a model for the overall volumetric mass transfer coefficient corresponding to the set of liquids used with an R-squared value of 0.966.
AB - In the presented work, the influence of parameters such as the total flow rate of phases, the ratio of flow rates, and residence time on mass transfer during the two-phase flow of immiscible liquids in a T-shaped microchannel was investigated using the micro-LIF technique. The study focused on the plug flow regime, where a 70% water–glycerol solution was used as the dispersed phase, and tri-n-butyl phosphate (TBP) was used as the carrier phase. We determined the transition boundary between the dispersed and parallel flow patterns and calculated the plug length and velocities to develop a mass transfer model. Furthermore, we measured the partition coefficient for the set of liquids used in the experiments and analyzed the concentration fields inside the slugs of the continuous phase at various distances downstream of the T-junction. Using the obtained data, we determined the extraction efficiency and overall volumetric mass transfer coefficient and established dependencies demonstrating the effect of the flow-rate ratio, total flow rate, and the residence time on mass transfer rate and extraction efficiency. Finally, we developed a model for the overall volumetric mass transfer coefficient corresponding to the set of liquids used with an R-squared value of 0.966.
KW - extraction
KW - immiscible liquids
KW - mass transfer
KW - micro-LIF
KW - microchannel
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85160607131&origin=inward&txGid=e7737f420daaf1f937f3ae9dd62d4b4e
UR - https://www.mendeley.com/catalogue/e8e35649-d093-30f0-957b-a56532060b0d/
U2 - 10.3390/en16104059
DO - 10.3390/en16104059
M3 - Article
VL - 16
JO - Energies
JF - Energies
SN - 1996-1073
IS - 10
M1 - 4059
ER -
ID: 55448010