This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1016/j.jpowsour.2019.226975 in citations.
Polytetrafluorethylene effects on liquid water flowing through the gas diffusion layer of polymer electrolyte membrane fuel cells
Polytetrafluorethylene effects on liquid water flowing through the gas diffusion layer of polymer electrolyte membrane fuel cells
A three-dimensional (3D) lattice Boltzmann model is applied to simulations of the dynamic process of liquid water moving through the gas diffusion layer, processed by covering the fibers with polytetrafluorethylene (PTFE), in polymer electrolyte membrane fuel cells. The PTFE content and two through-...
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Personal Name(s): | Yu, Junliang |
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Froning, Dieter (Corresponding author) / Reimer, Uwe / Lehnert, Werner | |
Contributing Institute: |
JARA - HPC; JARA-HPC Technoökonomische Systemanalyse; IEK-3 |
Published in: | Journal of power sources, 438 (2019) S. 226975 - |
Imprint: |
New York, NY [u.a.]
Elsevier
2019
|
DOI: |
10.1016/j.jpowsour.2019.226975 |
Document Type: |
Journal Article |
Research Program: |
Stochastic Aspects of Transport Processes in Gas Diffusion Layers of HT-PEFCs Fuel Cells |
Publikationsportal JuSER |
A three-dimensional (3D) lattice Boltzmann model is applied to simulations of the dynamic process of liquid water moving through the gas diffusion layer, processed by covering the fibers with polytetrafluorethylene (PTFE), in polymer electrolyte membrane fuel cells. The PTFE content and two through-plane distribution styles were analyzed regarding their impact on the liquid water's flow behavior. The total saturation curves show that the water's breakthrough times are affected by these two factors. Different characteristic shapes of local saturation curves are observed with different types of PTFE distribution. The dynamic elevation plots of water fronts show that certain PTFE distribution styles can be of advantage to fuel cell efficiency. |