Improved water management of Pt/C cathode modified by graphitized carbon nanofiber in proton exchange membrane fuel cell

2018 ◽  
Vol 399 ◽  
pp. 350-356 ◽  
Author(s):  
Sunki Chung ◽  
Dongyoon Shin ◽  
Myounghoon Choun ◽  
Jungsuk Kim ◽  
Seugran Yang ◽  
...  
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Carbon Nanofiber ◽  
Proton Exchange ◽  
Graphitized Carbon ◽  
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.

scholarly journals A COMPARISON OF BIOMIMETIC DESIGN AND TRIZ APPLIED TO THE DESIGN OF A PROTON EXCHANGE MEMBRANE FUEL CELL

2011 ◽  
Author(s):  
Jessica Currie ◽  
Keith Fung ◽  
A.G. Mazza ◽  
J.S. Wallace ◽  
L.H. Shu
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Design Method ◽  
Electrical Energy ◽  
Proton Exchange ◽  
Management Problem ◽  
Biomimetic Design ◽  
Technological Challenge ◽  
Exchange Membrane

The Proton Exchange Membrane (PEM) fuel cell is an attractive energy conversion device that can provide efficient and clean electrical energy. However, limitations in water management can deleteriously affect its conversion efficiency. Overcoming this technological challenge is essential. In this paper, two design methodologies, biomimetic design and TRIZ, were used to find potential solutions to this water management problem. Each design method produced two potential solutions. We found biomimetic design to have more potential for bias by the designer’s prior knowledge of biology. This bias can serve to either hinder or help the design process. A notable finding is that biomimetic design and TRIZ can be considered mutually inclusive in the potential solutions generated in this study. This suggests that either design method could have been used to produce the same solutions.

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