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Effects of the geometry of the air flowfield on the performance of an open-cathode PEMFC |
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| รหัสดีโอไอ | |
| Title | Effects of the geometry of the air flowfield on the performance of an open-cathode PEMFC |
| Creator | 1. Suangrat Kiattamrong 2. Angkee Sripakagorn |
| Publisher | Joint Graduate School of Energy and Environment |
| Publication Year | 2557 |
| Keyword | PEMFC, fuel cell, open-cathode, aspect ratio, channel dimension, flowfield |
| Abstract | The present work performed an experimental study on a forced-air open-cathode PEMFC. The aim of this work is focused on the effect of the geometry, in terms of the flow area and the shape, of the cathode channel on the performance of the PEMFC. The single-cell open-cathode PEMFC with the active area of 100 cm2 is designed and fabricated for the study. A fan is used to supply an adequate flow rate for cooling and chemical reaction as well as to supply the pressure to overcome the pressure drop across the air flow channel. At low current density, the same performance was found regardless of the flow area and the aspect ratio. The performance at 0.6 V is about 180 mA/cm2. At higher current density, the performance increases with the higher aspect ratio. In contrast, the different flow areas exhibit mostly insignificant effect on the performance of the fuel cell. However, the larger flow area is more preferable due to the net system efficiency and the lower production cost. |
| ISBN | 978-616-92228-1-1 |
