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

Author(s):  
Jessica Currie ◽  
Keith Fung ◽  
A.G. Mazza ◽  
J.S. Wallace ◽  
L.H. Shu

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.

Author(s):  
Hyung Hee Cho ◽  
Sanghoon Lee ◽  
Dong-Ho Rhee

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.


2018 ◽  
Vol 7 (3.27) ◽  
pp. 80
Author(s):  
G Sheebha Jyothi ◽  
Y Bhaskar Rao

This paper represents a mathematical model for proton exchange membrane fuel cell(PEMFC)system. Proton exchange membrane fuel cell (also called polymer Electrolyte Membrane fuel cells(PEM)) provides a continuous electrical energy supply from fuel at high levels of efficiency and power density. PEMs provide a solid, corrosion free electrolyte, a low running temperature, and fast response to power.  


2018 ◽  
Vol 399 ◽  
pp. 350-356 ◽  
Author(s):  
Sunki Chung ◽  
Dongyoon Shin ◽  
Myounghoon Choun ◽  
Jungsuk Kim ◽  
Seugran Yang ◽  
...  

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