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-   -   IV polarization curve (http://www.cfd-online.com/Forums/fluent/95987-iv-polarization-curve.html)

syazwan January 9, 2012 15:36

IV polarization curve
 
hi, im currently doing a simulation of pem fuel cell using ansys fluent. can anyone here explain to me what is the significance of I-V polarization curve to the efficiency of the fuel cell

http://www.emeraldinsight.com/conten...0210702015.png

thanks in advance!

elemad1987 March 6, 2012 16:19

Hi, actually I'm trying to using ANSYS 14.0 to analysis PEM fuel cell, could you tell my how can I do it

aarvay March 8, 2012 19:06

Quote:

Originally Posted by syazwan (Post 338525)
hi, im currently doing a simulation of pem fuel cell using ansys fluent. can anyone here explain to me what is the significance of I-V polarization curve to the efficiency of the fuel cell

http://www.emeraldinsight.com/conten...0210702015.png

thanks in advance!

The way the IV curve gives you some idea of the efficiency is that a theoretically 100% efficient cell would have a perfectly flat horizontal IV 'curve' which means that the voltage would not drop with increasing current. The flatter/higher your curve, the better.


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