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https://doi.org/10.21256/zhaw-2790| Publication type: | Conference poster |
| Type of review: | Peer review (abstract) |
| Title: | Advanced characterization of polymer electrolyte fuel cells using a two-phase time-dependent model |
| Authors: | Herrendörfer, Robert Schumacher, Jürgen O. |
| DOI: | 10.21256/zhaw-2790 |
| Proceedings: | 16th symposium on modeling and experimental validation of electrochemical energy technologies (ModVal 2019) : book of abstracts |
| Editors of the parent work: | Krewer, Ulrike Laue, Vincent Redeker, Andreas |
| Conference details: | ModVal 2019, Braunschweig, Germany, 12-13 March 2019 |
| Issue Date: | 2019 |
| Publisher / Ed. Institution: | Technische Universität Braunschweig |
| Language: | English |
| Subjects: | Proton exchange membrane fuel cell model; Numerical simulation; Two-phase; Time dependent |
| Subject (DDC): | 621.3: Electrical, communications, control engineering |
| Abstract: | For polymer electrolyte fuel cells (PEFC) to become competitive, their operation in transport applications requires optimized performance, durability and costs. An indispensable component of this optimization is a detailed time-dependent characterization of PEFCs. For this purpose, several dynamic single-cell PEFC numerical models have been developed in the last 15 years. Here we present a new modeling approach with an advanced material parameterization of all governing time-dependent processes. This new modeling approach is based on the 1-D steady-state two-phase, five-layer PEFC model with a comprehensive material parametrization [1]. We further developed this approach by including the time-dependency of electron, proton, heat, dissolved water, gas and liquid water transport. Implementation in COMSOL allows for accurate spatio-temporal resolution and flexible model setups. We develop an improved electrochemical spectroscopy method by applying a sinusoidal perturbation of varying amplitude to the cell voltage. In contrast to (small-signal) electrical impedance spectroscopy, our model numerically solves for the nonlinear time-dependent response of the fuel cell, which enables us to retrieve information from large signals. We compute the response spectra at different operating points not only for electrical current density but also for dissolved water, liquid water, temperature and gas concentration and their gradients. These nonlinear response spectra serve for the development of improved model-based characterization techniques and fuel cell diagnostics. Acknowledgements: Financial support from the Swiss Federal Office of Energy (SFOE contract number: SI/501764-01) is gratefully acknowledged. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/16155 |
| Fulltext version: | Accepted version |
| License (according to publishing contract): | Not specified |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Published as part of the ZHAW project: | Neue Charakterisierungsmethoden von Brennstoffzellenstacks für den Einsatz im Automobilbereich (ACTIF) |
| Appears in collections: | Publikationen School of Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Poster.pdf | 2.18 MB | Adobe PDF |  View/Open | |
| poster_addon.pdf | 894.56 kB | Adobe PDF |  View/Open |
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Herrendörfer, R., & Schumacher, J. O. (2019). Advanced characterization of polymer electrolyte fuel cells using a two-phase time-dependent model [Conference poster]. In U. Krewer, V. Laue, & A. Redeker (Eds.), 16th symposium on modeling and experimental validation of electrochemical energy technologies (ModVal 2019) : book of abstracts. Technische Universität Braunschweig. https://doi.org/10.21256/zhaw-2790
Herrendörfer, R. and Schumacher, J.O. (2019) ‘Advanced characterization of polymer electrolyte fuel cells using a two-phase time-dependent model’, in U. Krewer, V. Laue, and A. Redeker (eds) 16th symposium on modeling and experimental validation of electrochemical energy technologies (ModVal 2019) : book of abstracts. Technische Universität Braunschweig. Available at: https://doi.org/10.21256/zhaw-2790.
R. Herrendörfer and J. O. Schumacher, “Advanced characterization of polymer electrolyte fuel cells using a two-phase time-dependent model,” in 16th symposium on modeling and experimental validation of electrochemical energy technologies (ModVal 2019) : book of abstracts, 2019. doi: 10.21256/zhaw-2790.
HERRENDÖRFER, Robert und Jürgen O. SCHUMACHER, 2019. Advanced characterization of polymer electrolyte fuel cells using a two-phase time-dependent model. In: Ulrike KREWER, Vincent LAUE und Andreas REDEKER (Hrsg.), 16th symposium on modeling and experimental validation of electrochemical energy technologies (ModVal 2019) : book of abstracts. Conference poster. Technische Universität Braunschweig. 2019
Herrendörfer, Robert, and Jürgen O. Schumacher. 2019. “Advanced Characterization of Polymer Electrolyte Fuel Cells Using a Two-Phase Time-Dependent Model.” Conference poster. In 16th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (ModVal 2019) : Book of Abstracts, edited by Ulrike Krewer, Vincent Laue, and Andreas Redeker. Technische Universität Braunschweig. https://doi.org/10.21256/zhaw-2790.
Herrendörfer, Robert, and Jürgen O. Schumacher. “Advanced Characterization of Polymer Electrolyte Fuel Cells Using a Two-Phase Time-Dependent Model.” 16th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (ModVal 2019) : Book of Abstracts, edited by Ulrike Krewer et al., Technische Universität Braunschweig, 2019, https://doi.org/10.21256/zhaw-2790.
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