modelTestConditions
Fuel cell test conditions
Extends from FCSys.Icons.Record (Icon for records).
Information
Some conditions are taken from the outer environment model. In particular,
environment.Tis used as the initial temperature throughout the cell, the temperature at each inlet, and the exterior temperature of each end plate in the yz plane.environment.pis used as the initial pressure throughout the cell and the pressure at each outlet.environment.RHis used as the initial relative humidity throughout the cell.environment.psi_O2_dryis used as the dry-gas concentration of O2 at the cathode inlet.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Q.NumberAbsolute | psi_sat | environment.p_sat/environment.p | Mole fraction of H2O at saturation |
| Q.NumberAbsolute | psi_H2O_an | anRH*psi_sat | Mole fraction of H2O at the anode inlet |
| Q.NumberAbsolute | psi_H2 | 1 - psi_H2O_an | Mole fraction of H2 at the anode inlet |
| Q.NumberAbsolute | psi_H2O_ca | caRH*psi_sat | Mole fraction of H2O at the cathode inlet |
| Q.NumberAbsolute | psi_O2 | environment.psi_O2_dry*(1 - psi_H2O_ca) | Mole fraction of O2 at the cathode inlet |
| Q.NumberAbsolute | psi_N2 | (1 - environment.psi_O2_dry)*(1 - psi_H2O_ca) | Mole fraction of N2 at the cathode inlet |
| Anode | |||
| Q.NumberAbsolute | anRH | 0.8 | Relative humidity (at inlet) |
| Cathode | |||
| Q.NumberAbsolute | caRH | 0.5 | Relative humidity (at inlet) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Connectors.RealInputInternal | I_an | U.A | Equivalent current |
| Connectors.RealInputInternal | I_ca | U.A | Equivalent current |
| Connectors.RealOutputInternal | Ndot_H2O_an | Rate of supply of H2O into the anode | |
| Connectors.RealOutputInternal | Ndot_O2 | Rate of supply of O2 | |
| Connectors.RealOutputInternal | Ndot_H2O_ca | Rate of supply of H2O into the cathode | |
| Connectors.RealOutputInternal | Ndot_N2 | Rate of supply of N2 | |
| Connectors.RealOutputInternal | Ndot_H2 | Rate of supply of H2 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Math.Gain | stoichH2 | ||
| Modelica.Blocks.Math.Gain | anStoichH2O | ||
| Modelica.Blocks.Math.Gain | stoichO2 | ||
| Modelica.Blocks.Math.Gain | caStoichH2O | ||
| Modelica.Blocks.Math.Gain | stoichN2 |