| Name | Default | Description |
|---|---|---|
| T | 340 | Operation temperature of diffusion layer [K] |
| av | 1e-9 | Specific condensation surface [m2/m3] |
| b | 0.001 | Material transfer coeficient [m/s] |
| Es | 0.7 | Volumetric fraction of solid |
| da | 1e-5 | Thickness of transport phenomena [m] |
| tau | 1 | Tortuosity |
| Dwl | 3.5e-9 | Surface diffusion coefficient of H2O, liquid phase [m2/s] |
| ks | 1e4 | Electrical conducivity of the solid [S/m] |
| kp | 20 | Constant protonic conducivity of the electrolyte [S/m] |
| posat | 3169 | Reference Saturation pressure [Pa] |
| Tosat | 298.16 | Reference Saturation temperature [K] |
| ros | 4000 | Density of the solid [kg/m3] |
| roh2ol | 972 | Density of water [kg/m3] |
| poa | 100000 | Reference pressure for the current limit [Pa] |
| D1co | 0.07853e-4 | Constant Knudsen diffusion coefficient for oxygen [m2/s] |
| D2co | 0.1047e-4 | Constant Knudsen diffusion coefficient for steam water [m2/s] |
| rp | 1e-10 | Pore size of porous media [m] |
| D12o | 0.282e-4 | Constant binary diffusion coefficient [m2/s] |
| pAref | 100000 | Reference pressure to measure the binary diffusion coefficient [Pa] |
| Tref | 308.1 | Reference temperature to measure the binary diffusion coefficient [K] |
| ModHyp2 | 0 | Knudsen diffusion pore size dependence(0:Off,1:On) |
| n | 20 | Number of finite elements for diffusion layer |
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