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Local current density
Posted Jul 5, 2013, 5:03 a.m. EDT Battery Design Version 4.3a 1 Reply
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Hi, I am working on a simulation of a redox flow battery. I used the redox flow battery model COMSOL provided and edited it a little.
I don't understand it fully and what puzzles me the most is that despite the lack of change in V2/V3-Concentration, the local current density at 9/10*H_cell is not zero. (1D plot group: local current density with 4 plots in it. 3 different cut lines, the last one at 9/10*H_cell should be 0 )
Can someone explain to me why that is?
Thanks
I don't understand it fully and what puzzles me the most is that despite the lack of change in V2/V3-Concentration, the local current density at 9/10*H_cell is not zero. (1D plot group: local current density with 4 plots in it. 3 different cut lines, the last one at 9/10*H_cell should be 0 )
Can someone explain to me why that is?
Thanks
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1 Reply Last Post Jul 8, 2013, 2:41 p.m. EDT
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Posted:
1 decade ago
HI Michael:
What do you mean by V2/V3 concentration not changing, could you please elaborate on this point? I plotted the cV2 and cV3 and they both change. Every V2/V3 combination will give rise to an overpotential and this will give rise to a reaction. Plotting the over-potential at the cutline representing 9/10*H_cell will show you that there is an overpotential at that location.
Sri.
What do you mean by V2/V3 concentration not changing, could you please elaborate on this point? I plotted the cV2 and cV3 and they both change. Every V2/V3 combination will give rise to an overpotential and this will give rise to a reaction. Plotting the over-potential at the cutline representing 9/10*H_cell will show you that there is an overpotential at that location.
Sri.