The Effects of Mass Transfer Parameters on the Modeling of A PEM Fuel Cell

2006 ◽  
Author(s):  
Nader Mahinpey ◽  
Arulkumar Jagannathan ◽  
Raphael Idem
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Transfer Parameters

Numerical simulation of effects of flow maldistribution on heat and mass transfer in a PEM fuel cell stack

2006 ◽  
Vol 43 (10) ◽  
pp. 1037-1047 ◽  
Author(s):  
A. S. Bansode ◽  
Siddharth Patel ◽  
T. Rajesh Kumar ◽  
B. Muralidhar ◽  
T. Sundararajan ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Mass Transfer ◽  
Fuel Cell ◽  
Heat And Mass Transfer ◽  
Pem Fuel Cell ◽  
Fuel Cell Stack ◽  
Flow Maldistribution

Multiphysics Modeling of Assembly Pressure Effects on Proton Exchange Membrane Fuel Cell Performance

2009 ◽  
Vol 6 (4) ◽  
Author(s):  
Y. Zhou ◽  
G. Lin ◽  
A. J. Shih ◽  
S. J. Hu
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Contact Resistance ◽  
Electrical Contact ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Cell Performance ◽  
Pressure Effects ◽  
Electrical Contact Resistance ◽  
Fuel Cell Performance

The clamping pressure used in assembling a proton exchange membrane (PEM) fuel cell stack can have significant effects on the overall cell performance. The pressure causes stack deformation, particularly in the gas diffusion layer (GDL), and impacts gas mass transfer and electrical contact resistance. Existing research for analyzing the assembly pressure effects is mostly experimental. This paper develops a sequential approach to study the pressure effects by combining the mechanical and electrochemical phenomena in fuel cells. The model integrates gas mass transfer analysis based on the deformed GDL geometry and modified parameters with the microscale electrical contact resistance analysis. The modeling results reveal that higher assembly pressure increases cell resistance to gas mass transfer, causes an uneven current density distribution, and reduces electrical contact resistance. These combined effects show that as the assembly pressure increases, the PEM fuel cell power output increases first to a maximum and then decreases over a wide range of pressures. An optimum assembly pressure is observed. The model is validated against published experimental data with good agreements. This study provides a basis for determining the assembly pressure required for optimizing PEM fuel cell performance.

scholarly journals Mass Transfer in the HT-PEM Fuel Cell Electrode

2014 ◽  
Vol 61 ◽  
pp. 1524-1527 ◽  
Author(s):  
Hong Sun ◽  
Hao Chen ◽  
Ye Wan
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Fuel Cell Electrode ◽  
Cell Electrode

1-D Computational Model of a PEM Fuel Cell Using Reaction Rate Law Kinetics to Model the Consumption of Hydrogen at the Anode

2008 ◽  
Author(s):  
Sean Goudy ◽  
S. O. Bade Shrestha ◽  
Iskender Sahin
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Reaction Rate ◽  
Side Reaction ◽  
Pem Fuel Cell ◽  
Polymer Membrane ◽  
Hydrogen Gas ◽  
Cathode Side ◽  
Anode Side ◽  
Rate Law

Computational models of Polymer Electrolyte Membrane (PEM) fuel cell have historically simulated the anode side reaction assuming the system is mass transfer limited. Specifically, the models assume that the hydrogen gas mass transfer rate is much slower than the reaction rate. Although this assumption makes computational simulations easier, the model does not accurately describe the system. This model introduces a novel method of simulating the anode side reaction. Specifically, the model uses the reaction rate law kinetics of hydrogen gas adsorption onto the platinum electrode and the subsequent ionization of the hydrogen atom to model the anode side reaction dynamics. The benefit is that the model is capable of predicting the actual behavior of the system at the electrode and polymer membrane interface. Because of the computational complexity of this system, the model assumes that a fraction of the hydrogen gas in contact with the polymer membrane dissolves into the polymer membrane and diffuses to the cathode side. The fraction of hydrogen, which is dissolved into the polymer membrane, is proportional to the Damko¨hler number (Da). Specifically, the model assumes that if the reactant is not completely consumed when it comes into contact with the polymer membrane that some fraction of the hydrogen gas will dissolve into the polymer membrane and will be diffused to the cathode side. In addition, because of the slight negative charge of the polymer membrane, the model assumes that no oxygen diffuses into the polymer membrane.

Unsteady three-dimensional numerical study of mass transfer in PEM fuel cell with spiral flow field

2017 ◽  
Vol 42 (2) ◽  
pp. 1237-1251 ◽  
Author(s):  
Tamerabet Monsaf ◽  
Ben Moussa Hocine ◽  
Sahli Youcef ◽  
Mohammedi Abdallah
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Flow Field ◽  
Numerical Study ◽  
Three Dimensional ◽  
Pem Fuel Cell ◽  
Spiral Flow

Study on heat and mass transfer of a planar membrane humidifier for PEM fuel cell

2020 ◽  
Vol 152 ◽  
pp. 119538 ◽  
Author(s):  
Wei-Mon Yan ◽  
Chung-Yuan Lee ◽  
Chun-Han Li ◽  
Wen-Ken Li ◽  
Saman Rashidi
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Heat And Mass Transfer ◽  
Pem Fuel Cell ◽  
Planar Membrane

scholarly journals Impact of Liquid Water on Reactant Mass Transfer in PEM Fuel Cell Electrodes

2010 ◽  
Vol 157 (4) ◽  
pp. B563 ◽  
Author(s):  
Jeff T. Gostick ◽  
Marios A. Ioannidis ◽  
Mark D. Pritzker ◽  
Michael W. Fowler
Keyword(s):  
Mass Transfer ◽  
Fuel Cell ◽  
Liquid Water ◽  
Pem Fuel Cell ◽  
Fuel Cell Electrodes
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