Combination effects of flow field structure and assembly force on performance of high temperature proton exchange membrane fuel cells
- 3 January 2021
- journal article
- research article
- Published by Hindawi Limited in International Journal of Energy Research
- Vol. 45 (5), 7903-7917
- https://doi.org/10.1002/er.6374
Abstract
In this work, a three‐dimensional, steady state model was developed by combining mechanical equations, Navier‐stokes equation, Maxwell‐Stefan equation, and Butler‐Volmer equation. This model was used to investigate the influences of flow field structure and assembly force on porosity distribution in gas diffusion layer (GDL), species distribution in GDL, and current density distribution in GDL and membrane by extracting uneven porosity in the GDL from mechanical calculation equation to put in mass transfer calculation and electrochemical calculation equation as the known data. The optimum assembly prestress and optimum flow field structure were achieved. The results show combined effect of the assembly force and flow field makes the uneven porosity distribution and remarkable lateral current in the GDL; the channel width/rib width ratio of flow field has significant effects on the performance of the high temperature proton exchange membrane fuel cells (HT‐PEMFC). These results provide the potential to promote the performance and application of HT‐PEMFC.Funding Information
- National Natural Science Foundation of China (51776131, 51906166)
- Natural Science Foundation of Liaoning Province (lnzd201902)
This publication has 42 references indexed in Scilit:
- Nonlinear orthotropic model of the inhomogeneous assembly compression of PEM fuel cell gas diffusion layersInternational Journal of Hydrogen Energy, 2011
- Numerical study of assembly pressure effect on the performance of proton exchange membrane fuel cellEnergy, 2010
- An inverse geometry design problem for optimization of single serpentine flow field of PEM fuel cellInternational Journal of Hydrogen Energy, 2010
- Three-Dimensional Modeling and Experimental Study of a High Temperature PBI-Based PEM Fuel CellJournal of the Electrochemical Society, 2009
- Modelling the Effect of Inhomogeneous Compression of GDL on Local Transport Phenomena in a PEM Fuel CellFuel Cells, 2008
- A numerical study of flow crossover between adjacent flow channels in a proton exchange membrane fuel cell with serpentine flow fieldJournal of Power Sources, 2008
- Novel serpentine-baffle flow field design for proton exchange membrane fuel cellsJournal of Power Sources, 2007
- Preparation of a low proton resistance PBI/PTFE composite membraneJournal of Power Sources, 2007
- Three dimensional modeling of high temperature PEM fuel cellsJournal of Power Sources, 2006
- Contact resistance prediction and structure optimization of bipolar platesJournal of Power Sources, 2006