Visualizing Bubble Flows in Electrolyzer GDLs using Microfluidic Platforms

被引：8

作者：

Arbabi, F. ^{[1
,3
]}

Kalantarian, A. ^{[1
,2
,3
]}

Abouatallah, R. ^{[4
]}

Wang, R. ^{[4
]}

Wallace, J. ^{[2
,3
]}

Bazylak, A. ^{[1
,3
]}

机构：

[1] Univ Toronto, Fac Engn & Appl Sci, Thermofluids Energy & Adv Mat TEAM Lab, Toronto, ON M5S 3G8, Canada

[2] Univ Toronto, Fac Engn & Appl Sci, Engine Res & Dev Lab, Toronto, ON M5S 3G8, Canada

[3] Univ Toronto, Fac Engn & Appl Sci, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada

[4] Hydrogen Corp, Mississauga, ON L5T 2N6, Canada

来源：

POLYMER ELECTROLYTE FUEL CELLS 13 (PEFC 13) | 2013年 / 58卷 / 01期

关键词：

PORE-NETWORK MODELS; POROUS-MEDIA; 2-PHASE FLOW; POROSITY DISTRIBUTIONS; PEM ELECTROLYSIS; MULTIPHASE FLOW; WATER TRANSPORT; ENERGY; HYDROGEN;

D O I：

10.1149/05801.0907ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, microfluidic platforms were used to visualize air bubble transport in two-dimensional (2D) representations of gas diffusion layers (GDLs) to gain insight into how the geometrical features of the GDL impact multiphase flow in polymer electrolyte membrane (PEM) electrolyzers. Two dimensional porous networks were designed using volumetric pore space information, such as average porosity and average throat size obtained from micro-computed tomography (micro CT) visualizations. Microfluidic chips were fabricated to represent felt, paper, and sintered powder GDLs and used to simulate the transfer of oxygen bubbles generated at the catalyst layer, through the GDL towards the flow channels of a PEM electrolyzer. The results of this work indicate that microfluidic platforms for evaluating PEM electrolyzer GDLs is highly promising.

引用

页码：907 / 918

页数：12

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