This model is an integration of Padulles-Hauer dynamic model with Amphlett static model. The advantage of this dynamic
model is using Amphlett equation for simulating the polarization values. Amphlett model as the most complicated and
preferable static model, but the most precise. Based on this model, the obtained polarization voltage is identical to
the experimental results.
| Input |
Description |
Value |
| A |
Active area [cm^2] |
50.6 |
| CV |
Conversion factor |
2 |
| E0 |
No load voltage [V], Default Value:1.229 |
1.229 |
| JMax |
Maximum current density [A/(cm^2)] |
1.5 |
| KH2 |
Hydrogen valve constant [kmol.s^(-1).atm^(-1)] |
4.22e-05 |
| KH2O |
Water valve constant [kmol.s^(-1).atm^(-1)] |
7.716e-06 |
| KO2 |
Oxygen valve constant [kmol.s^(-1).atm^(-1)] |
2.11e-05 |
| N0 |
Number of cells |
5 |
| R |
R-Electronic [ohm] (*Optional) |
0 |
| T |
Fuel cell temperature [K] |
343 |
| i-start |
Cell operating current start point [A] |
0.1 |
| i-step |
Cell operating current step |
0.1 |
| i-stop |
Cell operating current end point [A] |
75 |
| l |
Membrane thickness [cm] |
0.0178 |
| lambda |
An adjustable parameter with a min value of 14 and max value of 23 |
23 |
| qMethanol |
Molar flow of methanol [kmol.s^(-1)] |
0.0002 |
| rho |
Hydrogen-Oxygen flow rate |
1.168 |
| t1 |
Reformer time constant [s] |
2 |
| t2 |
Reformer time constant [s] |
2 |
| tH2 |
Hydrogen time constant [s] |
3.37 |
| tH2O |
Water time constant [s] |
18.418 |
| tO2 |
Oxygen time constant [s] |
6.74 |