Journal
ENERGIES
Volume 14, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/en14175484
Keywords
fuel cell; flow field; metallic plate; design; computational fluid dynamics
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Funding
- Federal Ministry for Economic Affairs and Energy (BMWi) of the Federal Republic of Germany [03ETB020E]
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The study outlines a design process for fuel cells in mobile applications, emphasizing the need for compact and lightweight designs. The metallic bipolar plate faces the challenge of creating three flow fields when two plates are combined, but the final design achieves almost perfect distribution of coolant flow.
Fuel cells, designed for mobile applications, should feature compact and low-weight designs. This study describes a design process that fulfills the specific needs of target applications and the production process. The key challenge for this type of metallic bipolar plate is that the combination of two plates creates three flow fields, namely an anode side, a cathode side, and a coolant. This illustrates the fact that each cell constitutes an electrochemical converter with an integrated heat exchanger. The final arrangement is comprised of plates with parallel and separate serpentine channel configurations. The anode and cathode sides are optimized for operation under dry conditions. The final plate offers an almost perfect distribution of coolant flow over the active area. The high quality of this distribution is almost independent of the coolant mass flow, even if one of the six inlet channels is blocked. The software employed (OpenFOAM and SALOME) is freely available and can be used with templates.
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