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An x-ray tomography based lattice Boltzmann simulation study on gas diffusion layers of polymer electrolyte fuel cells
journal contributionposted on 21.08.2015, 14:11 by Pratap Rama, Yu Liu, Rui ChenRui Chen, Hossein Ostadi, Kyle Jiang, Xiaoxian Zhang, Rosemary Fisher, Michael Jeschke
This work reports a feasibility study into the combined full morphological reconstruction of fuel cell structures using X-ray computed micro- and nanotomography and lattice Boltzmann modeling to simulate fluid flow at pore scale in porous materials. This work provides a description of how the two techniques have been adapted to simulate gas movement through a carbon paper gas diffusion layer (GDL). The validation work demonstrates that the difference between the simulated and measured absolute permeability of air is 3%. The current study elucidates the potential to enable improvements in GDL design, material composition, and cell design to be realized through a greater understanding of the nano- and microscale transport processes occurring within the polymer electrolyte fuel cell.
This research was supported by the UK Technology Strategy Board (TSB Project No.: TP/6/S/K3032H). We acknowledge industrial partners AVL List GmbH, Intelligent Energy Ltd., Johnson Matthey Fuel Cells Ltd., Saati Group Inc. and Technical Fibre Products Ltd. for their support of this work.
- Aeronautical, Automotive, Chemical and Materials Engineering
- Aeronautical and Automotive Engineering