recordBaseElectrolyzerL2Specification
Record used for specification of an Electrolyzer system
Extends from TransiEnt.Basics.Icons.Record (Icon for records).
Information
1. Purpose of model
Partial record for electrolyzer system specific data.
2. Level of detail, physical effects considered, and physical insight
(no remarks)
3. Limits of validity
(no remarks)
4. Interfaces
(no remarks)
5. Nomenclature
(no remarks)
6. Governing Equations
(no remarks)
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
(no remarks)
10. Version History
Adopted from BaseCHPRecord. Created by John Webster (jcwebste@edu.uwaterloo.ca) Oct. 2018
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Fundamental Definitions | |||
| Integer | n_cells | 60 | number of cells in series in the electrolyzer stack |
| Real | alpha_an | 0.7353 | charge transfer coefficient for anode |
| SI.Energy | E_exc | 52994 | Activation energy for anode reaction |
| SI.ChemicalPotential | E_pro | 10536 | Temperature independent parameter for activation energy in proton transport |
| SI.Area | PEM_area | 290e-4 | Active surface area of electrolyzer cell electrodes |
| SI.Current | i_el_n | 400 | Nominal current of electrolyzer |
| SI.ActivePower | P_el_n | 4.5e4 | Nominal power of the electrolyzer |
| SI.ActivePower | P_el_max | 3*P_el_n | Maximum power of the electrolyzer |
| SI.ThermalResistance | R_th | 0.0668 | Thermal resistance of stack |
| SI.HeatCapacity | C_th | 162116 | Overall lumped thermal capacitance |
| SI.CurrentDensity | i_dens_0_an_std | 1.08e-4 | Exchange current density at electrodes at T_std |
| SI.Thickness | t_mem | 178e-6 | PE membrane thickness |
| SI.Conductivity | mem_conductivity_ref | 10.31 | Membrane conductivity value at T_std |
| Real | specificWaterConsumption | 10 | Mass of water per mass of hydrogen |
| SI.Temperature | T_out | 283.15 | Hydrogen output temperature |
| Cooling circuit | |||
| SI.Power | P_el_pump | 1100 | pump el power consumption |
| SI.Efficiency | eta_pumpmotor | 0.75 | pump's motor electric efficiency |
| SI.VolumeFlowRate | V_flow_water | 140/1000/60 | water flow rate in cooling loop |
| SI.Temperature | T_op_max | 273.15 + 55.8 | max operating temp |
| SI.Temperature | T_cool_set | T_op_max - 10 | Cooling trigger point |
| SI.HeatFlowRate | Q_flow_cool_max | 6911 | Maximum cooling power |
| Cooling circuits | |||
| SI.PressureDifference | Delta_p_pump | 2*100000 | total pump head |