.TransiEnt.Producer.Gas.Electrolyzer.Base.Physics.Voltage.V_cell1

Information

1. Purpose of model

This is a model for electrolyzer dynamics with varying voltage dependent on pressure, current density, and temperature.

2. Level of detail, physical effects considered, and physical insight

Voltage is modeled according to Espinosa-López et al 2018 based on pressure, temperature, and current. Contains overvoltage components from Nernst potential, activation, and ohmic overpotentials.

3. Limits of validity

Original model developed and validated in the range of 20-60 °C with operating pressure of 15-35 bar.

4. Interfaces

(no remarks)

5. Nomenclature

(no elements)

6. Governing Equations

Consist of voltage equations from Espinosa-López et al 2018 by default. Can modify membrane conductivity, reverse voltage, concentration overvoltage, and thermoneutral expresssions if desired.

7. Remarks for Usage

(no remarks)

8. Validation

Results have been validated against Espinosa-López et al 2018 published figures.

9. References

Z. Abdin, E. MacA. Gray, and C.J. Webb. Modelling and simulation of a proton exchange membrane (PEM) electrolyzer cell. International Journal of Hydrogen Energy, 40(39):13243-13257, 2015. doi:10.1016/j.ijhydene.2015.07.129.

Manuel Espinosa-López, Philippe Baucour, Serge Besse, Christophe Darras, Raynal Glises, Philippe Poggi, André Rakotondrainibe, and Pierre Serre-Combe. Modelling and experimental validation of a 46 kW PEM high pressure water electrolyser. Renewable Energy, 119, pp. 160-173, 2018. doi: 10.1016/J.RENENE.2017.11.081.

R. García-Valverde, N. Espinosa, and A. Urbina. Simple PEM water electrolyzer model and experimental validation. International Journal of Hydrogen Energy, 37(2):1927-1938, 2012. doi:10.1016/j.ijhydene.2011.09.027.

10. Version History

Created by John Webster (jcwebste@edu.uwaterloo.ca) October 2018.

Contents

NameDescription
 PEMconductivityconductivity of PEM
 V_thermoneutralthermoneutral voltage of electrolysis
 V_reversiblereversible voltage of cell
 V_concentrationconductivity of PEM

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