modelMassFlow2thOrderDynamics
PEMElectrolyzer mass flow as modeled by Espinosa, 2018 with 2th order dynamics
Extends from TransiEnt.Producer.Gas.Electrolyzer.Base.Physics.MassFlow.PartialMassFlow (partial model for PEM electrolyzer mass flow model).
Information
1. Purpose of model
This is a model to calculate mass flows in typical electrolyzers with first order dynamics.
2. Level of detail, physical effects considered, and physical insight
(Purely technical component without physical modeling.)
3. Limits of validity
(Purely technical component without physical modeling.)
4. Interfaces
(no remarks)
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
(no remarks)
10. Version History
Model Created by Jan Westphal (j.westphal@tuhh.de) based on the MassFlow0thOrder model in Oct 2019
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.MolarMass | molar_mass_H2 | 2.016e-3 | Molar mass of hydrogen gas |
| Integer | n_cells | number of cells in series | |
| SI.Efficiency | eta_F | 1 | Faraday's efficiency, relating real H2 flow rate and theoretical |
| Real | omega_n | 17 | Sets the natural frequency of the electrolyser |
| Real | zeta | 0.7 | Set the damping ratio of the electrolyser |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.MassFlowRate | m_flow_H2 (from PartialMassFlow) | mass flow rate of H2 gas | |
| SI.MolarFlowRate | n_flow_H2O (from PartialMassFlow) | Molar consummation rate of water | |
| SI.MolarFlowRate | n_flow_H2 (from PartialMassFlow) | Molar production rate of Hydrogen gas | |
| SI.MolarFlowRate | n_flow_O2 (from PartialMassFlow) | Molar production rate of Oxygen gas | |
| SI.Current | i_el_stack | current across the electrolyzer stack |