Dynamic behavior of liquid water transport in a tapered channel of a proton exchange membrane fuel cell cathode

2011 ◽  
Vol 36 (4) ◽  
pp. 3076-3086 ◽  
Author(s):  
N. Akhtar ◽  
P.J.A.M. Kerkhof
Keyword(s):  
Fuel Cell ◽  
Dynamic Behavior ◽  
Water Transport ◽  
Liquid Water ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Fuel Cell Cathode ◽  
Tapered Channel ◽  
Exchange Membrane ◽  
Liquid Water Transport

The Effect of Inhomogeneous Compression on Water Transport in the Cathode of a Proton Exchange Membrane Fuel Cell

2012 ◽  
Vol 9 (3) ◽  
Author(s):  
Anders C. Olesen ◽  
Torsten Berning ◽  
Søren K. Kær
Keyword(s):  
Porous Media ◽  
Fuel Cell ◽  
Water Transport ◽  
Diffusion Layer ◽  
Liquid Water ◽  
Proton Exchange Membrane ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Exchange Membrane ◽  
Liquid Water Transport

A three-dimensional, multicomponent, two-fluid model developed in the commercial CFD package CFX 13 (ANSYS Inc.) is used to investigate the effect of porous media compression on water transport in a proton exchange membrane fuel cell (PEMFC). The PEMFC model only consist of the cathode channel, gas diffusion layer, microporous layer, and catalyst layer, excluding the membrane and anode. In the porous media liquid water transport is described by the capillary pressure gradient, momentum loss via the Darcy-Forchheimer equation, and mass transfer between phases by a nonequilibrium phase change model. Furthermore, the presence of irreducible liquid water is taken into account. In order to account for compression, porous media morphology variations are specified based on the gas diffusion layer (GDL) through-plane strain and intrusion which are stated as a function of compression. These morphology variations affect gas and liquid water transport, and hence liquid water distribution and the risk of blocking active sites. Hence, water transport is studied under GDL compression in order to investigate the qualitative effects. Two simulation cases are compared; one with and one without compression.

Liquid water flooding in a proton exchange membrane fuel cell cathode with an interdigitated design

2011 ◽  
Vol 35 (15) ◽  
pp. 1292-1311 ◽  
Author(s):  
Simo Kang ◽  
Biao Zhou ◽  
Chin-Hsiang Cheng ◽  
Huan-Ruei Shiu ◽  
Chun-I Lee
Keyword(s):  
Fuel Cell ◽  
Liquid Water ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Water Flooding ◽  
Fuel Cell Cathode ◽  
Exchange Membrane ◽  
Cell Cathode
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