Table 20.2: Zones where UDSs are Solved in PEMFC lists the polymer electrolyte membrane fuel cell zones where electric potential (UDS-0), protonic potential (UDS-1), capillary pressure (UDS-2), water content (UDS-3), and liquid saturation in channels (UDS-4) have physically meaningful values.
Table 20.2: Zones where UDSs are Solved in PEMFC
| Anode to Cathode | Zone Type | Electric Potential (UDS-0) | Protonic Potential (UDS-1) | Capillary Pressure (UDS-2) | Water Content (UDS-3) | Liquid Saturation in Channels (UDS-4) |
|---|---|---|---|---|---|---|
|
Current Collector |
Solid | yes | ||||
|
Gas Channel |
Fluid | yes | ||||
|
GDL |
Fluid | yes | yes | |||
|
MPL |
Fluid | yes | yes | |||
|
Catalyst Layer |
Fluid | yes | yes | yes | yes | |
|
Membrane |
Solid | yes | yes | yes | ||
|
Catalyst Layer |
Fluid | yes | yes | yes | yes | |
|
MPL |
Fluid | yes | yes | |||
|
GDL |
Fluid | yes | yes | |||
|
Gas Channel |
Fluid | yes | ||||
|
Current Collector |
Solid | yes |