This is a model for electrolyzer dynamics with varying voltage dependent on pressure, current density, and temperature.
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.
Original model developed and validated in the range of 20-60 °C with operating pressure of 15-35 bar.
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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.
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Results have been validated against Espinosa-López et al 2018 published figures.
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.
Created by John Webster (jcwebste@edu.uwaterloo.ca) October 2018.
Name | Description |
---|---|
PEMconductivity | conductivity of PEM |
V_thermoneutral | thermoneutral voltage of electrolysis |
V_reversible | reversible voltage of cell |
V_concentration | conductivity of PEM |