Bao, Chen und Bessler, Wolfgang G. (2015) Two-dimensional modeling of a polymer electrolyte membrane fuel cell with long flow channel. Part I. Model development. Journal of Power Sources, 275, Seiten 922-934. Elsevier. doi: 10.1016/j.jpowsour.2014.11.058. ISSN 0378-7753.
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Offizielle URL: http://www.journals.elsevier.com/journal-of-power-sources/
Kurzfassung
A two-dimensional single-phase model is developed for the steady-state and transient analysis of polymer electrolyte membrane fuel cells (PEMFC). Based on diluted and concentrated solution theories, viscous flow is introduced into a phenomenological multi-component modeling framework in the membrane. Characteristic variables related to the water uptake are discussed. A ButlereVolmer formulation of the current-overpotential relationship is developed based on an elementary mechanism of electrochemical oxygen reduction. Validated by using published VeI experiments, the model is then used to analyze the effects of operating conditions on current output and water management, especially net water transport coefficient along the channel. For a power PEMFC, the long-channel configuration is helpful for internal humidification and anode water removal, operating in counterflow mode with proper gas flow rate and humidity. In time domain, a typical transient process with closed anode is also investigated.
elib-URL des Eintrags: | https://elib.dlr.de/99158/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Two-dimensional modeling of a polymer electrolyte membrane fuel cell with long flow channel. Part I. Model development | ||||||||||||
Autoren: |
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Datum: | 2015 | ||||||||||||
Erschienen in: | Journal of Power Sources | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 275 | ||||||||||||
DOI: | 10.1016/j.jpowsour.2014.11.058 | ||||||||||||
Seitenbereich: | Seiten 922-934 | ||||||||||||
Verlag: | Elsevier | ||||||||||||
ISSN: | 0378-7753 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | polymer electrolyte membrane fuel cells (PEMFC) Oxygen reduction reaction (ORR) kinetics Internal humidification | ||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||
HGF - Programm: | Rationelle Energieumwandlung und Nutzung (alt) | ||||||||||||
HGF - Programmthema: | Brennstoffzelle (alt) | ||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||
DLR - Forschungsgebiet: | E EV - Energieverfahrenstechnik | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Elektrochemische Prozesse (alt) | ||||||||||||
Standort: | Stuttgart | ||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Elektrochemische Energietechnik | ||||||||||||
Hinterlegt von: | Friedrich, Prof.Dr. Kaspar Andreas | ||||||||||||
Hinterlegt am: | 09 Dez 2015 08:36 | ||||||||||||
Letzte Änderung: | 22 Jun 2023 10:13 |
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