The effect of baffle shape on the performance of a polymer electrolyte membrane fuel cell with a biometric flow field
| Autor: | Budi Utomo Kukuh Widodo, A'rasy Fahruddin, Wawan Aries Widodo, Djatmiko Ichsani, Fadlilatul Taufany |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Uniform distribution (continuous) Renewable Energy Sustainability and the Environment Flow (psychology) Energy Engineering and Power Technology Baffle 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Cathode 0104 chemical sciences law.invention Fuel Technology law Composite material Current (fluid) 0210 nano-technology Mass fraction Beam (structure) |
| Zdroj: | International Journal of Hydrogen Energy. 46:6028-6036 |
| ISSN: | 0360-3199 |
| Popis: | Flow field design on the cathode side, inspired by leaf shapes, leads to a high performance, as it achieves a good distribution of reactants. Furthermore, the addition of baffles to the cathode channel also increases the supply of reactants in the cathode catalyst. However, research on the addition of baffles to the cathode channel has still been limited to straight channels and conventional flow fields. Therefore, in this work, a numerical study was conducted to investigate the effect of baffles on the leaf flow field on the performance of a polymer electrolyte membrane fuel cell. The generated 3D model is composed of nine layers with a 25-cm2 active area. The beam and chevron shapes of the baffles, which were inserted into the mother channel, were compared. The simulation results revealed that the addition of beam-shaped baffles that are close to each other can increase the current and power densities by up to 18% due to the more uniform distribution of the oxygen mass fraction. |
| Databáze: | OpenAIRE |
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