Scaling factors for channel width variations in treelike flow field patterns for polymer electrolyte membrane fuel cells - An experimental study
| dc.contributor.author | Sauermoser, Marco | |
| dc.contributor.author | Pollet, Bruno G. | |
| dc.contributor.author | Kizilova, Natalya | |
| dc.date.accessioned | 2021-11-08T12:11:36Z | |
| dc.date.available | 2021-11-08T12:11:36Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | To have a uniform distribution of reactants is an advantage to a fuel cell. We report results for such a distributor with tree-like flow field plates (FFP). Numerical simulations have shown that the width scaling parameters of tree-like patterns in FFPs used in polymer electrolyte membrane fuel cells (PEMFC) reduces the viscous dissipation in the channels. In this study, experimental investigations were conducted on a 2-layer FF plate possessing a tree-like FF pattern which was CNC milled on high-quality graphite. Three FF designs of different width scaling parameters were employed. IeV curves, power curves and impedance spectra were generated at 70%, 60% and 50% relative humidity (25 cm2 active area), and compared to those obtained from a conventional 1-channel serpentine FF. It was found that the FF design, with a width scaling factor of 0.917 in the inlet and 0.925 in the outlet pattern, exhibited the best peak power out of the three designs (only 11% - 0.08 W/cm2 lower than reference serpentine FF). Results showed that a reduction of the viscous dissipation in the flow pattern was not directly linked to a PEMFC performance increase. | en_US |
| dc.identifier.citation | Sauermoser, M. et al. (2021). Scaling factors for channel width variations in tree-like flow field patterns for polymer electrolyte membrane fuel cells - An experimental study. International Journal of Hydrogen Energy, 46(37), 19554–19568. https://doi.org/10.1016/j.ijhydene.2021.03.102 | en_US |
| dc.identifier.issn | 0360-3199 | |
| dc.identifier.uri | https://doi.org/10.1016/j.ijhydene.2021.03.102 | |
| dc.identifier.uri | http://hdl.handle.net/10566/6992 | |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier | en_US |
| dc.subject | Polymer electrolyte membrane | en_US |
| dc.subject | Fuel cells | en_US |
| dc.subject | Power | en_US |
| dc.subject | Tree-like patterns | en_US |
| dc.subject | Chemistry | en_US |
| dc.title | Scaling factors for channel width variations in treelike flow field patterns for polymer electrolyte membrane fuel cells - An experimental study | en_US |
| dc.type | Article | en_US |