Water management and structure optimization study of nickel metal foam as flow distributors in proton exchange membrane fuel cell

2022 ◽  
Vol 309 ◽  
pp. 118448
Author(s):  
Xi Chen ◽  
Chen Yang ◽  
Yun Sun ◽  
Qinxiao Liu ◽  
Zhongmin Wan ◽  
...  
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Metal Foam ◽  
Structure Optimization ◽  
Proton Exchange ◽  
Nickel Metal ◽  
Optimization Study ◽  
Exchange Membrane

Flooding Visualization and Enhanced Water Management in PEM Fuel Cell

2009 ◽  
Author(s):  
Hyung Hee Cho ◽  
Sanghoon Lee ◽  
Dong-Ho Rhee
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Performance Enhancement ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Key Factors ◽  
Flow Channels ◽  
Concentration Loss ◽  
Exchange Membrane

Internal water management in proton exchange membrane (PEM) fuel cell has been considered as one of most significant key factors for its performance enhancement. It is because relative humidity of hydrogen and air is strongly related to the performance of PEM fuel cell in terms of H+ movement within the membrane. In addition, production of H2O by chemical reactions can bring several problems during concentration loss region since combination of vapor in supplying air and byproduct of chemical reaction should lead to excess H2O remaining in PEM fuel cell, resulting flooding phenomena which may block air flow channels. Therefore, in order to understand and manage such phenomena to enhance the performance of PEM fuel cell, especially under concentration loss region, this paper focuses on the visualization of the flooding phenomena and application of the modified flow path on the cathode separator for flooding reduction.

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