Journal Article

FZJ-2019-03567

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Polytetrafluorethylene effects on liquid water flowing through the gas diffusion layer of polymer electrolyte membrane fuel cells

Yu, J.FZJ* ; Froning, D. (Corresponding author)FZJ* ; Reimer, U.FZJ* ; Lehnert, W.FZJ*RWTH*

2019
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jpowsour.2019.226975

Abstract: 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.

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Contributing Institute(s):

1. Technoökonomische Systemanalyse (IEK-3)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)
2. Stochastic Aspects of Transport Processes in Gas Diffusion Layers of HT-PEFCs (jiek30_20120501) (jiek30_20120501)

Appears in the scientific report 2019

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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