TY  - JOUR
TT  - A Three-Dimensional Model of Single PEM Fuel Cell Having Triple-Serpentine Flow Channel Developed with CFD
AU  - Kahvecı, Elif Eker
PY  - 2017
DA  - February
JF  - European Journal of Sustainable Development Research
JO  - EJSDR
PB  - CNR GROUP PUBLISHING
WT  - DergiPark
SN  - 2458-8091
SP  - 155
EP  - 163
VL  - 2
IS  - 1
KW  - Flooding
KW  - Gas Diffusion Layer
KW  - Humidification
KW  - PEM Fuel Cell
KW  - Performance
N2  - In thisinvestigation, a three dimensional, single-phase proton exchange membrane (PEM)fuel cells with triple-serpentine flow channel was studied numerically,evaluating reactant gas humidification, water management and cell performance.The model equations were solved using CFD software ANSYS Fluent® 16.2 withGambit® (2.4.6) as a pre-processor. This 3-D model with 19x50 mm2 active layerused to investigate the performance of fuel cell by determining the currentdensity, oxygen, hydrogen and water molar concentration distributions took intoaccount the mass, momentum, energy, species, charge conservation equation aswell as combines electrochemistry reaction inside the fuel cell. The simulationresults were illustrated polarization curves including I–V and I–P curves.Various properties of the GDL such as permeability, porosity, tortuosity andthe hydrophobic texture can affect the flooding at flow channels. In thisstudy, the effect of GDL porosity on flooding was investigated with differentoperating conditions. From the results, for lower operating voltages, as thecathode and anode relative humidity increases, the cell performance is enhancedbecause the cell performance is mainly dependent on the cathode mass transportlimitations due to the liquid water blockage effect. As decreases, the oxygenconcentration in the reactants increases and the water concentration on thecathode side decreases, this reduces flooding and improves the cellperformance. Also, analysing the polarization curve it can be said theperformance of the PEM fuel cell was improved by increasing the reactant gaseshumidification.
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UR  - https://dergipark.org.tr/tr/pub/ejsdr/issue//295385
L1  - https://dergipark.org.tr/tr/download/article-file/280231
ER  -