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problem with PEM fuel cell modeling and I-V curve |
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November 24, 2014, 04:31 |
problem with PEM fuel cell modeling and I-V curve
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#1 |
New Member
AmiN
Join Date: Nov 2014
Posts: 13
Rep Power: 11 |
I've been recently working on PEM fuel cells , and modeled a 3D single PEM in gambit. I wanted to compare my information & model with an article
therefore I used the same parameters in the article and there's no problem running the program based on the article, except that there are some differences between my results and the one in the article. as you know we have 3 different voltage drop in fuel cell , 1. concentration 2.activation 3.ohmic. I think the I-V polarization curve which Fluent6.3 gives me, only considers ohmic as a voltage drop ( Please note that you should give the "V" factor to the program & it would provide you with the "I' factor) What I'm looking for is the answer to the question that whether the program considers the other two voltage drops or not? Is there an option provided in the program to active considering the other factors as well?If yes where exactly this option can be activated? if no, what is the origin of the problem? Also, I wanted to make sure if the current density that I get in each program run for each voltage is the same number as the Fluent shows in continuities when running? and my last question is that are there any commands in the Fluent that gives us the IV polarization curve automatically so that we don't have to run it for each individual voltage? I've read somewhere that we can use "SSV" & "SSC" commands for this but I couldn't make it work. Regards |
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July 23, 2017, 22:20 |
Do you make your questions solved? I have the same question with you
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#2 |
New Member
YZH
Join Date: Apr 2017
Posts: 8
Rep Power: 9 |
I really want to know if there is a way to automatically plot the I-V polarization curve in fluent(I use fluent 15.0)
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July 23, 2017, 22:34 |
Here is my calculation result on operation voltage 0.75V
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#3 |
New Member
YZH
Join Date: Apr 2017
Posts: 8
Rep Power: 9 |
As you saw, if I can say the values of I_anode and I_cathode are equal?
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July 24, 2017, 01:39 |
Large geometry
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#4 |
New Member
Niaz
Join Date: May 2017
Location: islamabad
Posts: 11
Rep Power: 9 |
Hello .i hav a problem.can u please help me out in this
can i construct geometry/domain with dimension 1000m in x direction, 4000m in y-direction and 100m in z direction in Design molder of ANSYS FLUENT. and what is the maximum size i can construct in DM of fluent |
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current density, curve, fluent, fuelcell, pem |
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