Numerical investigation of liquid water distribution in the cathode side of proton exchange membrane fuel cell and its effects on cell performance

2012 ◽  
Vol 37 (11) ◽  
pp. 9155-9170 ◽  
Author(s):  
Li Chen ◽  
Tao-Feng Cao ◽  
Zhao-Hui Li ◽  
Ya-Ling He ◽  
Wen-Quan Tao
Keyword(s):  
Fuel Cell ◽  
Numerical Investigation ◽  
Liquid Water ◽  
Water Distribution ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Cell Performance ◽  
Cathode Side ◽  
Exchange Membrane

A Numerical Simulation of Proton Exchange Membrane Fuel Cell Performance

2011 ◽  
Vol 347-353 ◽  
pp. 376-385
Author(s):  
Shi Gang Yu ◽  
Hui He ◽  
You Sheng Xu
Keyword(s):  
Numerical Simulation ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Flow Direction ◽  
Proton Exchange ◽  
Cell Performance ◽  
Cathode Side ◽  
Operating Pressure ◽  
Fuel Cell Performance ◽  
Exchange Membrane

A composite three-dimensional mathematical model of proton exchange membrane fuel cell is proposed, the corresponding finite element method and numerical simulation are given as well, where fluid flow, proton transport, and electrochemical reaction are addressed. Some factors that probably affect the performance of the cell are analyzed by using the model. The computational results show that the reactant concentration decreases along the flow direction, the water concentration increases in the cathode side of membrane, membrane resistance decreases, conductivity increases and proton concentration increases. The fuel cell performance is better when the porosity increases, as well as the operating pressure.

scholarly journals Analyzing the impact of Temperature on Proton Exchange Membrane Fuel Cell performance Using Matlab

2018 ◽  
Vol 1 (1) ◽  
pp. 7-14
Author(s):  
Aftab Ahmed Khuhro
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Produced Water ◽  
Electrical Energy ◽  
Proton Exchange ◽  
Cell Performance ◽  
Cathode Side ◽  
Fuel Cell Performance ◽  
Exchange Membrane ◽  
The Impact

The Proton Exchange Membrane Fuel cell (PEMFC) is an electrochemical engine that converts the chemical energy of hydrogen into electrical energy. It receives hydrogen at anode and oxygen at the cathode side, due to chemical reaction at electrodes electronic current, water, and heat are produced. Heat produced causes problem for current produced, cell performance and may lead to a phase change of water produced. Water produced causes flooding at electrodes and membrane which requires a specific amount of water only. This study uses Mat lab to analyze the impact of temperature on different parameters which have a significant effect on heat and mass flow. This study shows the performance of Proton Exchange Membrane fuel cell reduces with increase in temperature significantly during operation of the cell. Proton Exchange Membrane fuel cell is suitable for transport, automobile, and other applications.

Performance and Liquid Water Distribution in PEFCs With Different Anisotropic Fiber Directions of the GDL

2010 ◽  
Author(s):  
Kyaw Swar Soe Naing ◽  
Yutaka Tabe ◽  
Takemi Chikahisa
Keyword(s):  
Liquid Water ◽  
Water Distribution ◽  
Proton Exchange Membrane ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Cathode Side ◽  
Fiber Direction ◽  
Anisotropic Fiber ◽  
Water Behavior ◽  
Exchange Membrane

To maintain proton exchange membrane fuel cells (PEFC) at high efficiencies without flooding, it is necessary to control the liquid water transport in the gas diffusion layer (GDL). This experimental study investigates the effects of the GDL fiber direction on the cell performance using an anisotropic GDL. The results of the experiments showed that the efficiency of the cell was much better when the fiber direction was perpendicular to the channel direction, and that the cell with perpendicular fibers was more tolerant to flooding than the cell with fibers parallel to the channel. To determine the mechanism that gives rise to the fiber direction effects, the liquid water behavior in the channel was observed through a glass window on the cathode side. Additionally, a small cell with a 2 cm2 active area was made, to investigate the water distribution inside the GDL by freezing the water and observing the ice distribution. These ice pictures showed that reactions are more active under channels than under ribs. This is because the accumulated water prevents reaction under the ribs, and indicates the importance of water removal from the rib zones.

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