CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

problem with PEM fuel cell modeling and I-V curve

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   November 24, 2014, 04:31
Default problem with PEM fuel cell modeling and I-V curve
New Member
Join Date: Nov 2014
Posts: 13
Rep Power: 11
AmiN.D is on a distinguished road
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.

Attached Images
File Type: jpg 13.jpg (37.0 KB, 94 views)
AmiN.D is offline   Reply With Quote

Old   July 23, 2017, 22:20
Default Do you make your questions solved? I have the same question with you
New Member
Join Date: Apr 2017
Posts: 8
Rep Power: 9
Fy_ is on a distinguished road
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)
Fy_ is offline   Reply With Quote

Old   July 23, 2017, 22:34
Default Here is my calculation result on operation voltage 0.75V
New Member
Join Date: Apr 2017
Posts: 8
Rep Power: 9
Fy_ is on a distinguished road
As you saw, if I can say the values of I_anode and I_cathode are equal?
Attached Images
File Type: png vi.png (14.7 KB, 47 views)
Fy_ is offline   Reply With Quote

Old   July 24, 2017, 01:39
Default Large geometry
New Member
Join Date: May 2017
Location: islamabad
Posts: 11
Rep Power: 9
niazgdc is on a distinguished road
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
niazgdc is offline   Reply With Quote


current density, curve, fluent, fuelcell, pem

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
PEM Fuel Cell Modeling Lisa FLUENT 15 September 12, 2023 09:08
PEM fuel cell modeling alimech Main CFD Forum 4 April 18, 2020 13:15
2D Fuel Cell Modeling Nehal FLUENT 3 April 18, 2020 13:11
Fuel cell modeling Steven FLUENT 9 April 29, 2012 06:51
PEM Fuel Cell Modeling with OpenFOAM Berker OpenFOAM 1 May 3, 2009 19:16

All times are GMT -4. The time now is 08:58.