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Dynamic modeling and simulation of a proton exchange membrane electrolyzer for hydrogen production

Lookup NU author(s): Emeritus Professor Keith Scott, Professor Suddhasatwa Basu

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Abstract

Computational model of a proton exchange membrane (PEM) water electrolyzer is developed to enable investigation of the effect of operating conditions and electrolyzer components on its performance by expending less time and effort than experimental investigations. The work presents a dynamic model of a PEM electrolyzer system based on MATLAB/Simulink software. The model consists mainly of four blocks - anode, cathode, membrane and voltage. Mole balances on the anode and cathode blocks form the basis of the model along with Nernst and Butler-Volmer equations. The model calculates the cell voltage by taking into account the open circuit voltage and various over-potentials. The model developed predicted well the experimental data on PEM water electrolyzer available in the literature. The dynamic behavior of the electrolyzer system is analyzed and the effects of varying electrolyzer temperature and pressure on electrolyzer performance and over-potentials are presented. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Awasthi A, Scott K, Basu S

Publication type: Article

Publication status: Published

Journal: International Journal of Hydrogen Energy

Year: 2011

Volume: 36

Issue: 22

Pages: 14779-14786

Print publication date: 19/05/2011

ISSN (print): 0360-3199

ISSN (electronic): 1879-3487

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.ijhydene.2011.03.045

DOI: 10.1016/j.ijhydene.2011.03.045

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