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Study of the effect of flow frames on the performance of a 10 kW 40 kWh vanadium redox flow battery using a multi-scale model
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Junhong LIN1, Zihao MA2, Shaojun LIU1, Hao SONG1, Guoneng LI3, Weihong WU1, Chenghang ZHENG1, Xiang GAO1. Study of the effect of flow frames on the performance of a 10 kW 40 kWh vanadium redox flow battery using a multi-scale model[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Study of the effect of flow frames on the performance of a 10 kW 40 kWh vanadium redox flow battery using a multi-scale model",
author="Junhong LIN1, Zihao MA2, Shaojun LIU1, Hao SONG1, Guoneng LI3, Weihong WU1, Chenghang ZHENG1, Xiang GAO1",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2400544"
}
%0 Journal Article
%T Study of the effect of flow frames on the performance of a 10 kW 40 kWh vanadium redox flow battery using a multi-scale model
%A Junhong LIN1
%A Zihao MA2
%A Shaojun LIU1
%A Hao SONG1
%A Guoneng LI3
%A Weihong WU1
%A Chenghang ZHENG1
%A Xiang GAO1
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2400544
TY - JOUR
T1 - Study of the effect of flow frames on the performance of a 10 kW 40 kWh vanadium redox flow battery using a multi-scale model
A1 - Junhong LIN1
A1 - Zihao MA2
A1 - Shaojun LIU1
A1 - Hao SONG1
A1 - Guoneng LI3
A1 - Weihong WU1
A1 - Chenghang ZHENG1
A1 - Xiang GAO1
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2400544
Abstract: The cell structure in vanadium redox flow batteries (VRFBs) critically impacts battery efficiency. Therefore, in this study we evaluate the effect of different flow frames on VFRB cell performance and system efficiency. This is accomplished through a multi-scale model combining a 3D model of the cell and an equivalent circuit model (ECM) of the stack. The results reveal that during the discharge process, increasing the flow rate can boost the discharge voltage, but also leads to higher pumping power consumption. Moreover, the pressure drop of the cell decreases as the number of flow frame channels increases. Due to improved reactant concentration distribution, the five-channel flow frame has a higher discharge voltage than other configurations at low reactant concentrations, even exceeding that of the twenty-channel flow frame. The flow frame structure and flow rate were optimized for a 10kW/40kWh VRFB with a genetic algorithm approach. Using a five-channel flow frame, a peak discharge efficiency of 93.70% was obtained at a flow rate of 960 mL/min. The results of this study may aid future design of kilowatt-scale VRFBs.
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