CLC number: TQ021.4
On-line Access: 2019-08-05
Received: 2019-05-07
Revision Accepted: 2019-07-05
Crosschecked: 2019-07-16
Cited: 0
Clicked: 3641
Citations: Bibtex RefMan EndNote GB/T7714
Qing-ran Kong, Yi-zhen Zhang, Hua Tian, Li-feng Fang, Ming-yong Zhou, Li-ping Zhu, Bao-ku Zhu. Mass transfer enhancement of hollow fiber membrane deoxygenation by Dean vortices[J]. Journal of Zhejiang University Science A, 2019, 20(8): 601-613.
@article{title="Mass transfer enhancement of hollow fiber membrane deoxygenation by Dean vortices",
author="Qing-ran Kong, Yi-zhen Zhang, Hua Tian, Li-feng Fang, Ming-yong Zhou, Li-ping Zhu, Bao-ku Zhu",
journal="Journal of Zhejiang University Science A",
volume="20",
number="8",
pages="601-613",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900181"
}
%0 Journal Article
%T Mass transfer enhancement of hollow fiber membrane deoxygenation by Dean vortices
%A Qing-ran Kong
%A Yi-zhen Zhang
%A Hua Tian
%A Li-feng Fang
%A Ming-yong Zhou
%A Li-ping Zhu
%A Bao-ku Zhu
%J Journal of Zhejiang University SCIENCE A
%V 20
%N 8
%P 601-613
%@ 1673-565X
%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900181
TY - JOUR
T1 - Mass transfer enhancement of hollow fiber membrane deoxygenation by Dean vortices
A1 - Qing-ran Kong
A1 - Yi-zhen Zhang
A1 - Hua Tian
A1 - Li-feng Fang
A1 - Ming-yong Zhou
A1 - Li-ping Zhu
A1 - Bao-ku Zhu
J0 - Journal of Zhejiang University Science A
VL - 20
IS - 8
SP - 601
EP - 613
%@ 1673-565X
Y1 - 2019
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1900181
Abstract: This paper reports a modeling and experimental study of the mass transfer enhancement of water deoxygenation by using a helical hollow fiber membrane (HHFM) to enable dean vortices. Experiments demonstrated that the HHFM deoxygenating rate was doubled compared with straight hollow fiber deoxygenation. A new model to describe the HHFM deoxygenation mass transfer was derived combining the helical coordinate system mass continuity equation on the lumen side and a modified dusty gas model for the mutual gaseous diffusion in the porous membrane. The model simulation showed that dean vortices induce transverse fluid disturbance in the fiber, which significantly promotes lumen side mass transfer. The key parameters influencing the strength of dean vortices are the Reynolds number of the lumen side and the curvature of HHFM. Operating and membrane structure parameters were optimized for HHFM deoxygenation design. The new model could be employed to describe quantitatively the mass transfer behavior of all types of HHFM gas-phase separation processes.
The manuscript describes the effect of coiled hollow fiber membranes with respect to lumen side mass transport enhancement, governed by dean Vortices. In this work, mutual gas transfer is considered, including oxygen, nitrogen and water, including their transport through the porous membrane. Experimental results are compared against a numerical model that is based on a velocity equation and a modified dusty gas model. This makes the approach computationally extensive. I do like the attempt and support a paper on this topic. I believe the authors have rightfully opted for using a velocity description, instead of solving complete navier stokes.
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