A coupled three dimensional model of vanadium redox flow battery for flow field designs

Energy ◽  
2014 ◽  
Vol 74 ◽  
pp. 886-895 ◽  
Author(s):  
Cong Yin ◽  
Yan Gao ◽  
Shaoyun Guo ◽  
Hao Tang
Keyword(s):  
Flow Field ◽  
Three Dimensional ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Flow Battery ◽  
Vanadium Redox

scholarly journals Study on architecture design of electroactive sites on Vanadium Redox Flow Battery (V-RFB)

2019 ◽  
Vol 80 ◽  
pp. 02004
Author(s):  
Suhailah Sujali ◽  
Mohd Rusllim Mohamed ◽  
Ahmed Nurye Oumer ◽  
Azizan Ahmad ◽  
Puiki Leung
Keyword(s):  
Pressure Drop ◽  
Flow Field ◽  
Flow Distribution ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Three Dimensional Model ◽  
Flow Battery ◽  
Circular Cell ◽  
Serpentine Flow Field ◽  
Vanadium Redox

Numerous researches have been conducted to look for better design of cell architecture of redox flow battery. This effort is to improve the performance of the battery with respect to further improves of mass transport and flow distribution of electroactive electrolytes within the cell. This paper evaluates pressure drop and flow distribution of the electroactive electrolyte in three different electrode configurations of vanadium redox flow battery (V-RFB) cell, namely square-, rhombus- and circular-cell designs. The fluid flow of the above-mentioned three electrode design configurations are evaluated under three different cases i.e. no flow (plain) field, parallel flow field and serpentine flow field using numerically designed three-dimensional model in Computational Fluid Dynamics (CFD) software. The cell exhibits different characteristics under different cases, which the circular cell design shows promising results for test-rig development with low pressure drop and better flow distribution of electroactive electrolytes within the cell. Suggestion for further work is highlighted.

High Energy Efficiency With Low-Pressure Drop Configuration for an All-Vanadium Redox Flow Battery

2016 ◽  
Vol 13 (4) ◽  
Author(s):  
S. Kumar ◽  
S. Jayanti
Keyword(s):  
Energy Efficiency ◽  
Pressure Drop ◽  
Flow Field ◽  
Peak Power ◽  
Low Pressure ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Electrolyte Circulation ◽  
Vanadium Redox

In this paper, we present experimental studies of electrochemical performance of an all-vanadium redox flow battery cell employing an active area of 103 cm2, activated carbon felt, and a novel flow field, which ensures good electrolyte circulation at low pressure drops. Extended testing over 151 consecutive charge/discharge cycles has shown steady performance with an energy efficiency of 84% and capacity fade of only 0.26% per cycle. Peak power density of 193 mW cm−2 has been obtained at an electrolyte circulation rate of 114 ml min−1, which corresponds to stoichiometric factor of 4.6. The present configuration of the cell shows 20% improved in peak power and 30% reduction in pressure drop when compared to a similar cell with a different electrode and a serpentine flow field.

A 3D macro-segment network model for vanadium redox flow battery with serpentine flow field

2021 ◽  
pp. 139657
Author(s):  
Yu-Hang Jiao ◽  
Meng-Yue Lu ◽  
Wei-Wei Yang ◽  
Xin-Yuan Tang ◽  
Miao Ye ◽  
...  
Keyword(s):  
Flow Field ◽  
Network Model ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Serpentine Flow Field ◽  
Vanadium Redox

Numerical Simulation and Experiment on the Electrolyte Flow Distribution for All Vanadium Redox Flow Battery

2011 ◽  
Vol 236-238 ◽  
pp. 604-607 ◽  
Author(s):  
Jin Qing Chen ◽  
Bao Guo Wang ◽  
Hong Ling Lv
Keyword(s):  
Flow Field ◽  
Flow Distribution ◽  
Parallel Flow ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Electrolyte Flow ◽  
Cfd Method ◽  
The Impact ◽  
Vanadium Redox

The electrolyte flow states of all vanadium redox flow battery (VRB) have a direct effect on the battery performance and life. To reveal the electrolyte distribution in the battery, the computation fluid dynamics (CFD) method was used to simulate a parallel flow field. A hydraulics experiment and a battery performance experiment were carried out to confirm the simulated results. The results show that the predicted information agreed well with the experimental results. The electrolyte has a concentrated distribution in the central region of the parallel flow field and the disturbed flow and then vortex flow areas mainly appear in the inlet and outlet regions. The higher flux of electrolyte is helpful to uniform the distributions and to reduce the impact of flow irregularity on the battery performance. The battery with the flow field generates a power density of 15.9 mW∙cm-2, and the coulombic, voltage and energy efficiency is up to 90.5%, 74.0% and 67.2% at a current density of 20 mA·cm-2.

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