Experimental and numerical study on improvement performance by wave parallel flow field in a proton exchange membrane fuel cell

Author(s):  
Zijun Li ◽  
Shubo Wang ◽  
Sai Yao ◽  
Xueke Wang ◽  
Weiwei Li ◽  
...  
2014 ◽  
Vol 592-594 ◽  
pp. 1687-1691
Author(s):  
Pal Vaibhav ◽  
P. Karthikeyan ◽  
R. Anand

As fossil fuels are becoming less reliable and more costly, the Proton Exchange Membrane Fuel Cell (PEMFC) is emerging as the primary candidate to replace the stationary and transport applications. In this study numerical simulation on PEMFC is done by commercially available Computational Fluid Dynamics (CFD) software. A three-dimensional, model of a single PEM Fuel cell with serpentine flow field design has been used for the study. The numerical model is 3-D steady, incompressible, single phase and isothermal includes the governing of mass, momentum, energy, and species along with electrochemical equations. All of these equations are simultaneously solved in order to get current flux density and H2, O2and H2O fractions along the flow field design.


2010 ◽  
Vol 51 (5) ◽  
pp. 959-968 ◽  
Author(s):  
Xiao-Dong Wang ◽  
Wei-Mon Yan ◽  
Yuan-Yuan Duan ◽  
Fang-Bor Weng ◽  
Guo-Bin Jung ◽  
...  

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Venkateswarlu Velisala ◽  
Gandhi Pullagura ◽  
Naga Srinivasulu Golagani

AbstractThe design of flow field greatly influences Proton Exchange Membrane Fuel Cell (PEMFC) performance, as it not only distributes the reactants, also removes the product (water) from the cell. Improper water removal blocks the reaction sites, which results in mass transport losses. A complete 3-D numerical model of PEMFC with a single serpentine (1-S), double serpentine (2-S),triple serpentine (3-S) and 3-2-1 serpentine flow fields with round corner was designed with the help of commercial Computational Fluid Dynamics (CFD) code ANSYS FLUENT. Simulations were carried out to investigate the effect of four flow fields on distribution of pressure, mass fraction of H2, O2, current flux density distribution, water content of membrane, and liquid water activity in the flow channels as well as the functioning of cells. Performance properties of proposed four designs were evaluated and found that 3-2-1 serpentine flow field performance is better than the 1-S, 2-S, and 3-S flow fields for the given flow rates of reactants and this 3-2-1 serpentine flow field model was validated with literature experimental data. The results also show that the velocity in channels increases with a decrease in the number of flow passes, which improve the reactions in the catalyst layers, reaction product removal from the cell thus reduces the concentration losses and improves the cell performance.


Sign in / Sign up

Export Citation Format

Share Document