Study of internal multi-parameter distributions of proton exchange membrane fuel cell with segmented cell device and coupled three-dimensional model

2020 ◽  
Vol 147 ◽  
pp. 650-662 ◽  
Author(s):  
Cong Yin ◽  
Yan Gao ◽  
Ting Li ◽  
Guangyou Xie ◽  
Kai Li ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Proton Exchange ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Exchange Membrane ◽  
Segmented Cell ◽  
Parameter Distributions

Effect of Non-Uniform Clamping Pressure on PEM Fuel Cell Stack Performance

2007 ◽  
Author(s):  
N. Fekrazad ◽  
T. L. Bergman
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Compressive Force ◽  
Thermal Conditions ◽  
Proton Exchange ◽  
Three Dimensional Model ◽  
Fuel Cell Stack ◽  
Exchange Membrane ◽  
Clamping Pressure

A three-dimensional model of a Proton Exchange Membrane fuel cell stack is developed. Taking advantage of the geometrical periodicity of a typical stack assembly, the model is used to predict the thermal, humidity, and electrochemical distributions within the fuel cell. Of particular interest is the effect of the compressive force used to assemble the stack on the fuel cell’s (a) power output and (b) internal temperature distribution. Application of non-uniform clamping pressure is considered, and predictions suggest that thermal conditions within the stack can be made more uniform with negligible impact on the fuel cell power. Hence, improved fuel cell stack durability might be achieved through judicious application of non-uniform clamping pressures for stack assembly.

A THREE DIMENSIONAL MODEL OF MEMBRANE IN PEM FUEL CELL

2005 ◽  
Vol 19 (28n29) ◽  
pp. 1683-1686 ◽  
Author(s):  
HAO WU ◽  
JUN CAO
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Proton Exchange ◽  
Three Dimensional Model ◽  
New Equation ◽  
Exchange Membrane ◽  
Variable Water ◽  
Good Agreement ◽  
Cell Study

In this proton exchange membrane fuel cell study, we present a transport equation for water molar concentration in the membrane; we also present a new equation for the membrane potential loss that strictly accounts for variable water content. Both 2-D and 3-D numerical simulations using our new membrane model are performed and compared with each other, and the 3-D numerical results are shown in good agreement with the experimentally acquired data.

Effect of Nonuniform Stack Compression on Proton Exchange Membrane Fuel Cell Temperature Distributions

2008 ◽  
Vol 130 (12) ◽  
Author(s):  
N. Fekrazad ◽  
T. L. Bergman
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Compressive Load ◽  
Thermal Conditions ◽  
Proton Exchange ◽  
Three Dimensional Model ◽  
Cell Temperature ◽  
Fuel Cell Performance ◽  
Exchange Membrane

A three-dimensional model is used to predict the power output and internal temperature distribution of a small proton exchange membrane fuel cell stack. Of particular interest is the influence of nonuniform stack compression on thermal conditions inside the fuel cell. A dimensionless membrane isothermality is correlated with a dimensionless compressive load distribution, suggesting that similar relationships may be developed for other fuel cell geometries. Fuel cell performance, in terms of minimizing temperature variations inside the device, can be enhanced by application of nonuniform stack compression.

3-D Model of Proton Exchange Membrane Fuel Cells

2000 ◽  
Author(s):  
Tianhong Zhou ◽  
Hongtan Liu
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Three Dimensional Model ◽  
Chemical Reaction Kinetics ◽  
Fuel Cell Performance ◽  
D Model

Abstract A comprehensive three-dimensional model for a proton exchanger membrane (PEM) fuel cell is developed to evaluate the effects of various design and operating parameters on fuel cell performance. The geometrical model includes two distinct flow channels separated by the membrane and electrode assembly (MEA). This model is developed by coupling the governing equations for reactant mass transport and chemical reaction kinetics. To facilitate the numerical solution, the full PEM fuel cell was divided into three coupled domains according to the flow characteristics. The 3-D model has been applied to study species transport, heat transfer, and current density distributions within a fuel cell. The predicated polarization behavior is shown to compare well with experimental data from the literature. The modeling results demonstrate good potential for this computational model to be used in operation simulation as well as design optimization.

STUDY ON THE OPTIMIZATION FOR THE SIZE OF FUEL CELL FLOW FIELD UNDER INADEQUATE AIR SUPPLY CONDITION

Química Nova ◽  
2021 ◽  
Author(s):  
Shi Lei ◽  
Zheng Minggang
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Proton Exchange Membrane ◽  
Three Dimensional ◽  
Proton Exchange ◽  
Field Size ◽  
Air Supply ◽  
Supply Condition ◽  
Length Width ◽  
Exchange Membrane

In this paper, the influence of the optimization for flow field size on the proton exchange membrane fuel cell (PEMFC) performance under the inadequate air supply of cathode was studied based on the three-dimensional, steady-state, and constant temperature PEMFC monomer model. Additionally, the effect of the optimization for hybrid factors, including length, width, depth and width-depth, on the PEMFC performance was also investigated. The results showed that the optimization of the flow field size can improve the performance of the PEMFC and ensure that it is close to the level under the normal gas supply.

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