Padulles-Hauer Dynamic Model is a dynamic electrochemical simulation model of a grid independent proton exchange
membrane (PEM) fuel cell. This model includes a methanol reformer to generate hydrogen from methanol and the PEM stack.
The model is used to predict the output voltage and power of a PEMFC. It has to be noted that the reformer model is a
second order transfer function.
| Input |
Description |
Value |
| B |
Activation voltage constant [V] |
0.04777 |
| C |
Activation constant parameter [A^(-1)] |
0.0136 |
| CV |
Conversion factor |
2 |
| E0 |
No load voltage [V] |
0.6 |
| 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 |
| Rint |
Fuel cell internal resistance [ohm] |
0.00303 |
| 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] |
100 |
| 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 |