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Numerical Simulation of a Novel Flow Channel with Aligned Concave-Convex Cavities to Enhance the Performance of PEMFC
The bipolar plates are important components of fuel cells and its characteristics and cross-section shape have a significant influence on the performance of PEMFCs. A new-type flow channel with aligned fan-shape concave-convex cavities is presented. A 3D, single-phase model for PEMFC with the new-ty...
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Published in: | Journal of physics. Conference series 2023-07, Vol.2557 (1), p.12049 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | The bipolar plates are important components of fuel cells and its characteristics and cross-section shape have a significant influence on the performance of PEMFCs. A new-type flow channel with aligned fan-shape concave-convex cavities is presented. A 3D, single-phase model for PEMFC with the new-type flow channel is developed. The polarization curve, current density distribution as well as the oxygen concentration distribution of straight channel and the new-type flow channel are compared through CFD simulation. The performance of PEMFC with the new-type flow channel has been more improved than that with straight flow channels. The simulation results also show that the new-type flow channel with aligned fan-shaped concave-convex cavities improves the current density and the net power is increased by 2.6%. Moreover, the proposed novel flow channel is also very simple and inexpensive for manufacturing. |
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ISSN: | 1742-6588 1742-6596 |
DOI: | 10.1088/1742-6596/2557/1/012049 |