Abstract
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.
Highlights
Energy storage is recognised as an important technology to work with variable and intermittent in nature of renewable power sources
The study focused on evaluation of vanadium redox flow battery performance based on flow of electrolytes within the cell, focusing on with and without flow field electrode configurations supported by experimental data and numerically designed three-dimensional model of VRFB
The first part of studies were focused on identifying the best shape to be implemented in vanadium redox flow battery (V-RFB) cell design with respect to flow distribution within the cell based on no flow field electrode configurations
Summary
Energy storage is recognised as an important technology to work with variable and intermittent in nature of renewable power sources. The study focused on evaluation of vanadium redox flow battery performance based on flow of electrolytes within the cell, focusing on with and without flow field electrode configurations supported by experimental data and numerically designed three-dimensional model of VRFB. Based on the brief review, it is important to note that both flow field electrode configurations and architecture design of the cell play important roles for future advancement of flow battery technology. The first part of studies were focused on identifying the best shape to be implemented in V-RFB cell design with respect to flow distribution within the cell based on no flow field electrode configurations. Extended works were focused on application of the best shape of electrode geometry design in further two electrode configurations to identify the lowest pressure drop which could resulted in better performance of the V-RFB
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