Journal Article

FZJ-2021-00879

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Combined Two-phase Co-flow and Counter-flow in a Gas Channel/Porous Transport Layer Assembly

Beale, S. B. (Corresponding author)FZJ* ; Andersson, M. ; Weber, N. ; Marschall, H. ; Lehnert, W.FZJ*RWTH*

2020
Pennington, NJ

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Please use a persistent id in citations: http://hdl.handle.net/2128/27608  doi:10.1149/09809.0305ecst

Abstract: This paper considers a detailed numerical analysis of combined liquid-gas co-flow in a gas channel, with liquid-gas counter-flow in a porous transport layer, as is typically found on the cathode side of a polymer electrolyte fuel cell. The geometry is obtained by digital reconstruction of nano-computer tomography images. From this, the domain is tessellated with an unstructured castellated or octree mesh, upon which the equations of mass and momentum are solved by means of a volume of fluid method. Liquid water is produced from an electrode where gaseous oxygen is simultaneously consumed by electrochemical reduction; Liquid-gas counter flow in the porous transport layer results in liquid drops being entrained in co-flow in the gas channels and convected by the gas downstream.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-14)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)
2. Flexible Simulation of Fuel Cells with OpenFOAM (jara0070_20191101) (jara0070_20191101)

Appears in the scientific report 2021

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Database coverage:
; ; SCOPUS

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