Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-18294
Title: Experimental parameter uncertainty in proton exchange membrane fuel cell modeling - part I : scatter in material parameterization
Authors : Vetter, Roman
Schumacher, Jürgen O.
et. al : No
Published in : Journal of Power Sources
Volume(Issue) : 438
Pages : 227018
Publisher / Ed. Institution : Elsevier
Issue Date: 31-Oct-2019
License (according to publishing contract) : CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International
Type of review: Peer review (publication)
Language : English
Subjects : Polymer electrolyte membrane; Fuel cell; Model; Parameterization; Uncertainty analysis; Experimental characterization
Subject (DDC) : 621.3: Electrical engineering and electronics
Abstract: Ever since modeling has become a mature part of proton exchange membrane fuel cell (PEMFC) research and development, it has been plagued by significant uncertainty lying in the detailed knowledge of material properties required. Experimental data published on several transport coefficients are scattered over orders of magnitude, even for the most extensively studied materials such as Nafion membranes, for instance. For PEMFC performance models to become predictive, high-quality input data is essential. In this bipartite paper series, we determine the most critical transport parameters for which accurate experimental characterization is required in order to enable performance prediction with sufficient confidence from small to large current densities. In the first part, a macro-homogeneous two-phase membrane-electrode assembly model is furnished with a comprehensive set of material parameterizations from the experimental and modeling literature. The computational model is applied to demonstrate the large spread in performance prediction resulting from experimentally measured or validated material parameterizations alone. The result of this is a ranking list of material properties, sorted by induced spread in the fuel cell performance curve. The three most influential parameters in this list stem from membrane properties: The Fickean diffusivity of dissolved water, the protonic conductivity and the electro-osmotic drag coefficient.
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Publication type: Article in scientific journal
DOI : 10.1016/j.jpowsour.2019.227018
10.21256/zhaw-18294
ISSN: 0378-7753
1873-2755
URI: https://digitalcollection.zhaw.ch/handle/11475/18294
Other identifiers : arXiv:1811.10091
Restricted until : 2021-05-03
Published as part of the ZHAW project : SCCER-Mobility
Appears in Collections:Publikationen School of Engineering

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