Model based water management diagnosis in polymer electrolyte membrane fuel cell

2020 ◽  
Vol 45 (31) ◽  
pp. 15618-15629
Author(s):  
Qadir Esmaili ◽  
Majid Eshagh Nimvari ◽  
Nima Fallah Jouybari ◽  
Yong-Song Chen
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane ◽  
Model Based ◽  
Management Diagnosis

Improvement of water management in polymer electrolyte membrane fuel cell thanks to cathode cracks

2010 ◽  
Vol 195 (16) ◽  
pp. 5228-5234 ◽  
Author(s):  
Nicolas Karst ◽  
Vincent Faucheux ◽  
Audrey Martinent ◽  
Pierre Bouillon ◽  
Jean-Pierre Simonato
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane

Effect of the Membrane Thermal Conductivity on the Performance of a Polymer Electrolyte Membrane Fuel Cell

2014 ◽  
Vol 11 (3) ◽  
Author(s):  
A. Iranzo ◽  
A. Salva ◽  
E. Tapia ◽  
F. Rosa
Keyword(s):  
Water Management ◽  
Thermal Conductivity ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Cell Performance ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
Serpentine Flow Field ◽  
Quantitative Understanding

The thermal conductivity of the polymer electrolyte membrane (PEM) of fuel cells is an important property affecting the overall cell performance. However, very few studies or fuel cell models include the dependence of this property on temperature and humidification conditions. In addition, no detailed studies have been reported for the quantitative understanding of how this property influences important aspects of the cell such as performance, water management, and membrane durability. This work presents results of a sensibility study performed for different membrane thermal conductivities, analyzing the influence of this parameter on the main cell response variables. The work has been performed with the aid of a computational fluid dynamics (CFD) model developed for a 50 cm2 fuel cell with serpentine flow field bipolar plates, previously validated against experimental measurements. The results show to what extent the cell performance, water management, and durability issues such as MEA temperature gradients are influenced by the membrane thermal conductivity, especially at high current densities, leading up to a 50% increase in the cell electric power at 1000 mA/cm2 when the thermal conductivity of the membrane is set to 0.26 W/(m K) instead of to the base value of 0.13 W/(m K).

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