Thin graphite bipolar plate with gaskets and carbon cloth flow-field

2001 ◽  
Vol 4 (32) ◽  
pp. 15
Keyword(s):  
Flow Field ◽  
Bipolar Plate ◽  
Carbon Cloth

A novel intersectant flow field of metal bipolar plate for proton exchange membrane fuel cell

2017 ◽  
Vol 41 (14) ◽  
pp. 2184-2193 ◽  
Author(s):  
Wen Dong-Hui ◽  
Yin Lin-Zhi ◽  
Piao Zhong-Yu ◽  
Lu Cong-Da ◽  
Li Gang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Proton Exchange Membrane ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Exchange Membrane

The Effect of Different Flow Patterns on Anode Fluid Behaviors of Micro Direct Methanol Fuel Cells

2009 ◽  
Vol 60-61 ◽  
pp. 260-264
Author(s):  
Bo Zhang ◽  
Yu Feng Zhang ◽  
Xiao Wei Liu ◽  
Peng Zhang
Keyword(s):  
Flow Field ◽  
Gas Flow ◽  
Direct Methanol Fuel Cells ◽  
Current Collector ◽  
Flow Patterns ◽  
Carbon Paper ◽  
Carbon Cloth ◽  
Serpentine Flow Field ◽  
Direct Methanol ◽  
Visualization Technology

Based on the visualization technology, we investigated experimentally the effect of different flow patterns on anode fluid behaviors of the μDMFC (Micro Direct Methanol Fuel Cell) with a transparent material under the same condition. Stainless steel mesh was utilized as the current collector which was distinct from the carbon cloth or carbon paper. Four dissimilar flow patterns were developed and tested. The observation of the effect of different flow patterns revealed that movements of dilute methanol solutions and CO2 gas bubbles in the dot and parallel flow fields represented more difficult, which could result in a decline of the μDMFC performance. The study also showed that a channel blocking in the single-serpentine flow field would be extremely terrible which could lead to a fuels leaking of the μDMFC, meanwhile the liquid-gas flow was more fluent and stable in a double-serpentine flow field. Therefore, due to its advantages, a double-serpentine flow pattern is more suitable for the μDMFC application compared with the other flow patterns.

Numerical Simulation of Fractal Tree-Shaped Flow Field Structures in PEMFC

2012 ◽  
Vol 151 ◽  
pp. 32-35 ◽  
Author(s):  
Jin Hua Dong ◽  
Shun Fang Liu
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Mass Transfer ◽  
Flow Field ◽  
Proton Exchange Membrane ◽  
Plant Root ◽  
Fractal Theory ◽  
Bipolar Plate ◽  
Field Structure ◽  
Proton Exchange

The fractal tree-shaped structure such as tree, plant root, leaves, animal lung and so on is universal and unique in nature. These structures possess the symmetric micro-channel distributions and the efficient transport characteristics. They are considered to be an optimal network channel of mass transfer and heat transfer. The mass transfer and heat transfer feature of bipolar plate in proton exchange membrane fuel cell (PEMFC) is similar with animal lungs and leaves. In this paper, fractal theory is used to study tree-shaped flow field structure of bipolar plate in PEMFC. It is demonstrated by numerical simulation that fractal tree-shaped flow field structure can provide substantially flow-field distribution, current density and heat transfer compared to the traditional flow field structure.

Through-Mask Electroetching for Fabrication of Metal Bipolar Plate Gas Flow Field Channels

2019 ◽  
Vol 33 (1) ◽  
pp. 991-1006 ◽  
Author(s):  
Heather McCrabb ◽  
E. Jennings Taylor ◽  
Alonso Lozano-Morales ◽  
Sirivatch Shimpalee ◽  
Maria Inman ◽  
...  
Keyword(s):  
Flow Field ◽  
Gas Flow ◽  
Bipolar Plate ◽  
Gas Flow Field
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