Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1637-1653 |
| Seitenumfang | 17 |
| Fachzeitschrift | International Journal of Hydrogen Energy |
| Jahrgang | 2011 |
| Ausgabenummer | 36 |
| Publikationsstatus | Veröffentlicht - Jan. 2011 |
| Extern publiziert | Ja |
Abstract
A two-phase flow process model for the gas diffusion layer (GDL) of a polymer electrolyte membrane fuel cell, considering also the cathode catalyst layer (CL), is presented. For this purpose, a systematic analysis of the factors affecting flooding and drying, including the liquid accumulation in the gas channel (CH), was performed using a one-dimensional reference model for the GDL and a compact channel model. The treatment proposed for the CH-GDL interface was compared with other boundary conditions in the literature. It was concluded that the liquid accumulation in the channel is determinant for estimating the steady state and transient GDL flooding, but that predicting the saturation level in the CL can help for determining operation policies for precluding flooding in the GDL-CL composite, in the absence of an adequate channel model. Bifurcation behavior, associated with the water phase change, was identified by means of the compact model.
Schlagwörter
- Liquids, Membranes, Polyelectrolytes, Porous materials, Proton exchange membrane fuel cells (PEMFC), Two phase flow
ASJC Scopus Sachgebiete
- Energie (insg.)
- Erneuerbare Energien, Nachhaltigkeit und Umwelt
- Energie (insg.)
- Feuerungstechnik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
Ziele für nachhaltige Entwicklung
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in: International Journal of Hydrogen Energy, Jahrgang 2011, Nr. 36, 01.2011, S. 1637-1653.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - The gas diffusion layer in polymer electrolyte membrane fuel cells
T2 - A process model of the two-phase flow
AU - Lemoine-Nava, Roberto
AU - Hanke-Rauschenbach, Richard
AU - Mangold, Michael
AU - Sundmacher, Kai
N1 - Copyright: Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2011/1
Y1 - 2011/1
N2 - A two-phase flow process model for the gas diffusion layer (GDL) of a polymer electrolyte membrane fuel cell, considering also the cathode catalyst layer (CL), is presented. For this purpose, a systematic analysis of the factors affecting flooding and drying, including the liquid accumulation in the gas channel (CH), was performed using a one-dimensional reference model for the GDL and a compact channel model. The treatment proposed for the CH-GDL interface was compared with other boundary conditions in the literature. It was concluded that the liquid accumulation in the channel is determinant for estimating the steady state and transient GDL flooding, but that predicting the saturation level in the CL can help for determining operation policies for precluding flooding in the GDL-CL composite, in the absence of an adequate channel model. Bifurcation behavior, associated with the water phase change, was identified by means of the compact model.
AB - A two-phase flow process model for the gas diffusion layer (GDL) of a polymer electrolyte membrane fuel cell, considering also the cathode catalyst layer (CL), is presented. For this purpose, a systematic analysis of the factors affecting flooding and drying, including the liquid accumulation in the gas channel (CH), was performed using a one-dimensional reference model for the GDL and a compact channel model. The treatment proposed for the CH-GDL interface was compared with other boundary conditions in the literature. It was concluded that the liquid accumulation in the channel is determinant for estimating the steady state and transient GDL flooding, but that predicting the saturation level in the CL can help for determining operation policies for precluding flooding in the GDL-CL composite, in the absence of an adequate channel model. Bifurcation behavior, associated with the water phase change, was identified by means of the compact model.
KW - Flooding/drying
KW - Porous media
KW - Two-phase model
KW - Liquids
KW - Membranes
KW - Polyelectrolytes
KW - Porous materials
KW - Proton exchange membrane fuel cells (PEMFC)
KW - Two phase flow
UR - http://www.scopus.com/inward/record.url?scp=79551486263&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2010.10.037
DO - 10.1016/j.ijhydene.2010.10.037
M3 - Article
AN - SCOPUS:79551486263
VL - 2011
SP - 1637
EP - 1653
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 36
ER -