Abstract
The processes, losses, and electrical characteristics of a Membrane-Electrode Assembly (MEA) of a Proton Exchange Membrane Fuel Cell (PEMFC) are described. In addition, a technique for numerically modeling the electrochemical performance of a MEA, developed specifically to be implemented as part of a numerical model of a complete fuel cell stack, is presented. The technique of calculating electrochemical performance was demonstrated by modeling the MEA of a 350 cm{sup 2}, 125 cell PEMFC and combining it with a dynamic fuel cell stack model developed by the authors. Results from the demonstration that pertain to the MEA sub-model are given and described. These include plots of the temperature, pressure, humidity, and oxygen partial pressure distributions for the middle MEA of the modeled stack as well as the corresponding current produced by that MEA. The demonstration showed that models developed using this technique produce results that are reasonable when compared to established performance expectations and experimental results. (orig.)
Lee, J H;
[1]
Lalk, T R;
[2]
Appleby, A J
[3]
- Los Alamos National Lab., NM (United States)
- Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering
- Center for Electrochemical Studies and Hydrogen Research, Texas Engineering Experimentation Station, Texas A and M Univ., College Station, TX (United States)
Citation Formats
Lee, J H, Lalk, T R, and Appleby, A J.
Modeling electrochemical performance in large scale proton exchange membrane fuel cell stacks.
Switzerland: N. p.,
1998.
Web.
doi:10.1016/S0378-7753(97)02683-9.
Lee, J H, Lalk, T R, & Appleby, A J.
Modeling electrochemical performance in large scale proton exchange membrane fuel cell stacks.
Switzerland.
https://doi.org/10.1016/S0378-7753(97)02683-9
Lee, J H, Lalk, T R, and Appleby, A J.
1998.
"Modeling electrochemical performance in large scale proton exchange membrane fuel cell stacks."
Switzerland.
https://doi.org/10.1016/S0378-7753(97)02683-9.
@misc{etde_622013,
title = {Modeling electrochemical performance in large scale proton exchange membrane fuel cell stacks}
author = {Lee, J H, Lalk, T R, and Appleby, A J}
abstractNote = {The processes, losses, and electrical characteristics of a Membrane-Electrode Assembly (MEA) of a Proton Exchange Membrane Fuel Cell (PEMFC) are described. In addition, a technique for numerically modeling the electrochemical performance of a MEA, developed specifically to be implemented as part of a numerical model of a complete fuel cell stack, is presented. The technique of calculating electrochemical performance was demonstrated by modeling the MEA of a 350 cm{sup 2}, 125 cell PEMFC and combining it with a dynamic fuel cell stack model developed by the authors. Results from the demonstration that pertain to the MEA sub-model are given and described. These include plots of the temperature, pressure, humidity, and oxygen partial pressure distributions for the middle MEA of the modeled stack as well as the corresponding current produced by that MEA. The demonstration showed that models developed using this technique produce results that are reasonable when compared to established performance expectations and experimental results. (orig.)}
doi = {10.1016/S0378-7753(97)02683-9}
journal = []
issue = {2}
volume = {70}
journal type = {AC}
place = {Switzerland}
year = {1998}
month = {Feb}
}
title = {Modeling electrochemical performance in large scale proton exchange membrane fuel cell stacks}
author = {Lee, J H, Lalk, T R, and Appleby, A J}
abstractNote = {The processes, losses, and electrical characteristics of a Membrane-Electrode Assembly (MEA) of a Proton Exchange Membrane Fuel Cell (PEMFC) are described. In addition, a technique for numerically modeling the electrochemical performance of a MEA, developed specifically to be implemented as part of a numerical model of a complete fuel cell stack, is presented. The technique of calculating electrochemical performance was demonstrated by modeling the MEA of a 350 cm{sup 2}, 125 cell PEMFC and combining it with a dynamic fuel cell stack model developed by the authors. Results from the demonstration that pertain to the MEA sub-model are given and described. These include plots of the temperature, pressure, humidity, and oxygen partial pressure distributions for the middle MEA of the modeled stack as well as the corresponding current produced by that MEA. The demonstration showed that models developed using this technique produce results that are reasonable when compared to established performance expectations and experimental results. (orig.)}
doi = {10.1016/S0378-7753(97)02683-9}
journal = []
issue = {2}
volume = {70}
journal type = {AC}
place = {Switzerland}
year = {1998}
month = {Feb}
}