Abstract
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.
Original language | English |
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Pages (from-to) | 031015 |
Number of pages | 1 |
Journal | Journal of Fuel Cell Science and Technology |
Volume | 7 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jun 2010 |
Keywords
- diffusion
- lattice Boltzmann methods
- porous materials
- flow simulation
- proton exchange membrane fuel cells
- permeability
- computerised tomography