Impact of the flow-field distribution channel cross-section geometry on PEM fuel cell performance: Stamped vs. milled channel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929504" target="_blank" >RIV/60461373:22310/24:43929504 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0016236124014479?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236124014479?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fuel.2024.132299" target="_blank" >10.1016/j.fuel.2024.132299</a>
Alternative languages
Result language
angličtina
Original language name
Impact of the flow-field distribution channel cross-section geometry on PEM fuel cell performance: Stamped vs. milled channel
Original language description
Polymer electrolyte membrane fuel cells (PEM FCs) represent an essential part of the emerging hydrogen economy. Metallic bipolar plates (BPs) allow high speed and capacity production using established industrial technologies, like mechanical stamping. Stamping, however, leads to different cross-sectional shapes of flow-field (FF) channels as compared to milled or compression-moulded bipolar plates. The impact of these changes on the resulting fuel cell performance is not yet fully understood. This study employs an experimentally validated threedimensional, isothermal, steady-state, continuum-mechanics based mathematical model to gain a deeper insight into this issue and to identify optimal stamped BP channel cross-sectional shapes for parallel and serpentine FF. The uniformity of the local distribution of the physico-chemical quantities and the resulting load curves are analysed. The results obtained confirm that stamped BPs with channels of the trapezoidal cross-section are a viable alternative to the traditional milled or moulded BPs with channels of the rectangular cross-section. The observed differences in performance of FC with stamped and milled channels can be mitigated by optimization of the channel cross-section geometry parameters. As an optimal rib width 0.4 mm and an optimal channel ground width 1 mm for milled and 0.2 mm for stamped BPs are suggested.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/TO01000306" target="_blank" >TO01000306: Research and development of an innovative corrosion resistant coating for bipolar plates for energy conversion devices</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fuel
ISSN
0016-2361
e-ISSN
1873-7153
Volume of the periodical
373
Issue of the periodical within the volume
June 2024
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
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UT code for WoS article
001261296500001
EID of the result in the Scopus database
2-s2.0-85196861954