scholarly journals Performance Analysis of Air Breathing Proton Exchange Membrane Fuel Cell Stack (PEMFCS) At Different Operating Condition

2017 ◽  
Vol 225 ◽  
pp. 012286
Author(s):  
V. Sunil ◽  
G. Venkata siva ◽  
G. Yoganjaneyulu ◽  
V.V. Ravikumar
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Air Breathing ◽  
Operating Condition ◽  
Fuel Cell Stack ◽  
Exchange Membrane

Experimental Evaluation of the Dynamic Behavior of an Air-Breathing Fuel Cell Stack

2001 ◽  
Vol 123 (3) ◽  
pp. 225-231 ◽  
Author(s):  
Svein O. Morner ◽  
Sanford A. Klein
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Significant Variable ◽  
Transient Effects ◽  
Air Breathing ◽  
Fuel Cell Stack ◽  
Fuel Cell Performance ◽  
Effects Of Temperature ◽  
Exchange Membrane

The performance of an air breathing proton exchange membrane (PEM) fuel cell stack has been experimentally measured to investigate the steady-state and transient effects of temperature, humidity and air flowrate. The results show that hydrogen leaks to the cathode through the membrane causing internal heating of the fuel cell. The leakage rate is found to be linearly dependent on the pressure difference between the hydrogen side and air side which is at atmospheric pressure. Temperature was found to not have a significant effect on the PEM performance, except through its indirect effect on humidity. The humidity of the membrane is found to be the most significant variable in determining the fuel cell performance. The airflow also influences the performance of the fuel cell directly by supplying oxygen and indirectly by influencing the humidity of the membrane. Experiments show that an optimum air flowrate exists that is much larger than required for stoichiometric oxidation of the fuel.

Observation of Pressure Drop Behavior in an Operating Fuel Cell Stack

2005 ◽  
Author(s):  
Frano Barbir ◽  
Haluk Gorgun ◽  
Xinting Wang
Keyword(s):  
Fuel Cell ◽  
Pressure Drop ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Cathode Side ◽  
Fuel Cell Stack ◽  
Flow Through ◽  
Drying Conditions ◽  
Exchange Membrane ◽  
The Relationship

Pressure drop on the cathode side of a PEM (Proton Exchange Membrane) fuel cell stack has been studied and used as a diagnostic tool. Since the Reynolds number at the beginning of the flow field channel was <250, the flow through the channel is laminar, and the relationship between the pressure drop and the flow rate is linear. Some departure from linearity was observed when water was either introduced in the stack or produced inside the stack in the electrochemical reaction. By monitoring the pressure drop in conjunction with the cell resistance in an operational fuel cell stack, it was possible to diagnose either flooding or drying conditions inside the stack.

The durability investigation of a 10‐cell metal bipolar plate proton exchange membrane fuel cell stack

2018 ◽  
Vol 43 (7) ◽  
pp. 2605-2614 ◽  
Author(s):  
Kailin Fu ◽  
Tian Tian ◽  
Yanan Chen ◽  
Shang Li ◽  
Chao Cai ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Fuel Cell Stack ◽  
Exchange Membrane
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