Mathematical Model and Characterization of the Transient Behavior of a PEM Fuel Cell

2004 ◽  
Vol 19 (5) ◽  
pp. 1234-1241 ◽  
Author(s):  
W. Friede ◽  
S. Rael ◽  
B. Davat
Keyword(s):  
Mathematical Model ◽  
Fuel Cell ◽  
Transient Behavior ◽  
Pem Fuel Cell

Synthesis and characterization of SPE membrane based on sulfonated FEP-g-acrylic acid by radiation induced graft copolymerization for PEM fuel cell

2004 ◽  
Vol 15 (5) ◽  
pp. 270-274 ◽  
Author(s):  
M. Patri ◽  
Varsha R. Hande ◽  
Swati Phadnis ◽  
B. Somaiah ◽  
Suhasini Roychoudhury ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Acrylic Acid ◽  
Graft Copolymerization ◽  
Pem Fuel Cell ◽  
Synthesis And Characterization ◽  
Radiation Induced

Ignition Bifurcations in a Stirred Tank PEM Fuel Cell

2005 ◽  
Author(s):  
Keith Promislow ◽  
Igor Nazarov
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte Membrane ◽  
Transient Behavior ◽  
Pem Fuel Cell ◽  
Membrane Resistance ◽  
Stirred Tank ◽  
Electrolyte Membrane ◽  
Ignition Dynamics ◽  
Current Production ◽  
Current Water

A mathematical model of ignition dynamics and bistable operation of a Stirred Tank Reactor (STR) Polymer Electrolyte Membrane (PEM) fuel cell is developed. In dry inlet gas operation the positive feedback between current, water production, and membrane resistance within the model leads to two stable “ignited” states. Within the framework of the model these correspond to a uniform current distribution or a partially extinguished cell with localized current production. The switching between the two regimes is accompanied by hysteresis and transient behavior on the order of 2–4 hours in a small 1 cm2 cell. We compare the numerical results to experimental data gathered by Jay Benziger and show that the steady-state distribution of membrane water is very sensitive to several parameters and is an excellent diagnostic for determining material parameters.

scholarly journals Characterization of MEA degradation for an open air cathode PEM fuel cell

2012 ◽  
Vol 37 (8) ◽  
pp. 7299-7308 ◽  
Author(s):  
R.A. Silva ◽  
T. Hashimoto ◽  
G.E. Thompson ◽  
C.M. Rangel
Keyword(s):  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Air Cathode

Characterization of Carbon Corrosion-Induced Structural Damage of PEM Fuel Cell Cathode Electrodes Caused by Local Fuel Starvation

2008 ◽  
Vol 155 (10) ◽  
pp. B979 ◽  
Author(s):  
Z. Y. Liu ◽  
B. K. Brady ◽  
R. N. Carter ◽  
B. Litteer ◽  
M. Budinski ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Structural Damage ◽  
Pem Fuel Cell ◽  
Carbon Corrosion ◽  
Fuel Cell Cathode ◽  
Cell Cathode
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