Cited by 756Fuel Cells and Related MaterialsElectrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel Cells

Computational fluid dynamics modeling of proton exchange membrane fuel cells

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Um, Sukkee, Wang, C. -Y., Chen, K. S.·2000·Journal of The Electrochemical Society

Abstract

A transient, multidimensional model has been developed to simulate proton exchange membrane fuel cells. The model accounts simultaneously for electrochemical kinetics, current distribution, hydrodynamics, and multicomponent transport. A single set of conservation equations valid for flow channels, gas‐diffusion electrodes, catalyst layers, and the membrane region are developed and numerically solved using a finite‐volume‐based computational fluid dynamics technique. The numerical model is validated against published experimental data with good agreement. Subsequently, the model is applied to explore hydrogen dilution effects in the anode feed. The predicted polarization curves under hydrogen dilution conditions are in qualitative agreement with recent experiments reported in the literature. The detailed two‐dimensional electrochemical and flow/transport simulations further reveal that in the presence of hydrogen dilution in the fuel stream, hydrogen is depleted at the reaction surface, resulting in substantial anode mass transport polarization and hence a lower current density that is limited by hydrogen transport from the fuel stream to the reaction site. Finally, a transient simulation of the cell current density response to a step change in cell voltage is reported. © 2000 The Electrochemical Society. All rights reserved.

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Authors
Um, S., Wang, C. Y., & Chen, K. S.
Affiliations
  • Pennsylvania State University (US)
  • Sandia National Laboratories (US)
Venue
Journal of The Electrochemical Society
Published
2000
Volume
147
Issue
12
Pages
4485
ISSN
0013-4651 (ISSN-L)
OpenAlex
W2162135551
Cited by
756
References
12
Citations by year
2026: 14 · 2025: 21 · 2024: 12 · 2023: 25 · 2022: 21 · 2021: 30 · 2020: 16 · 2019: 26 · 2018: 21 · 2017: 23 · 2016: 27 · 2015: 21 · 2014: 23 · 2013: 21 · 2012: 19
FWCI
22.48
Type
journal article
Language
en
Open access
Locations
  • Journal of The Electrochemical Society (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • University of North Texas Digital Library (University of North Texas) (submittedVersion)
Funders
  • National Science Foundation (9979579)
  • U.S. Department of Energy
  • University of Pennsylvania
  • Pennsylvania State University
  • Sandia National Laboratories
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Advancements in Solid Oxide Fuel Cells
Keywords
proton exchange membrane fuel cells, hydrogen dilution, electrochemical kinetics, current distribution, multicomponent transport, gas diffusion electrode, catalyst layer, flow channels, polarization curves

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