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Investigating PEMFC Performance with Dead-Ended Anode and Pressure Swing Technique under Dynamic Loading |
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| รหัสดีโอไอ | |
| Creator | 1. D. P. Doan 2. V. Lilavivat 3. T. Sasabe 4. C. T. Vo 5. T. D. Pham 6. K. H. Nguyen 7. C. Charoenphonphanich |
| Title | Investigating PEMFC Performance with Dead-Ended Anode and Pressure Swing Technique under Dynamic Loading |
| Publisher | Thai Society of Mechanical Engineers (TSME) |
| Publication Year | 2568 |
| Journal Title | Journal of Research and Applications in Mechanical Engineering (JRAME) |
| Journal Vol. | 13 |
| Journal No. | 3 |
| Page no. | JRAME-25-13-044 (p.1-10) |
| Keyword | PEMFC, Dead-ended anode, Pressure swing technique, Dynamic voltage, Periodic pulsation |
| URL Website | https://ph01.tci-thaijo.org/index.php/jrame/index |
| Website title | Journal of Research and Applications in Mechanical Engineering (JRAME) |
| ISSN | 2229-2152 |
| Abstract | The anode water management is a significant factor to mitigate local flooding and enhance performance at Proton Exchange Membrane Fuel Cells (PEMFC). The Dead-end anode (DEA) configuration operates dry hydrogen and utilizes a solenoid valve to seal the anode outlet. The Pressure Swing Technique (PST), based on the DEA configuration, generates periodic flow by adding more hydrogen via a solenoid valve between the inlet and outlet lines, rather than solely using a solenoid valve at the anode outlet. The hysteresis phenomenon, observed through dynamic voltage transients during forward and backward current sweeps, is applied in this study to investigate performance through voltage difference, voltage change, voltage decay rate, and voltage stability index under DEA and PST configurations in a single cell. The results indicated that PST improved stability by redistributing water within the anode channel but exhibited lower power density, specifically 5.46% less at a high current density of 400 mA cm–2 due to insufficient membrane hydration. Additionally, longer purging intervals decreased cell output voltage while gradually enhancing stability for both configurations. Furthermore, slower switching period rates in PST leaded to instability. |
