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IV polarization curve

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Old   January 9, 2012, 15:36
Default IV polarization curve
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nowwhy2
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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



thanks in advance!
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Old   March 6, 2012, 16:19
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Emad
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Hi, actually I'm trying to using ANSYS 14.0 to analysis PEM fuel cell, could you tell my how can I do it
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Old   March 8, 2012, 19:06
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Quote:
Originally Posted by syazwan View Post
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



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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