Design and Performance Test of Thin Metallic PEM Fuel Cell System
| Autor: | Cheng-Lin Ho, 何承霖 |
|---|---|
| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 This study is to investigate the thin metallic PEM fuel cell power generation system by designing and manufacturing in three different directions. First is the surface treatment of SS304 bipolar plate, by using the peck cementation process for the chromized. Second is the flow channel design of the thin SS304 bipolar plate, using the analyze software to simulation the flow of channels, than improve the problems of gas leak and fuel distribution in each cells of the stack are no uniform. Third, testing the thin metallic fuel cell stack performance, and measuring the characteristic best working parameters of stack. Finally, build the fuel cell systems with fuel cell stack, simply gas management model, water management model, fuel cell stack DAQ model and control rules, and system output performance test stability. The bipolar plate after chromized the resistance of corrosion is 2.45 μA/cm2, the contact resistance is 10.16 mΩ-cm2. Using the Fluent to analyze the fuel distribution in flow channels, than design the flow filed with 5 serpentine channels and the gas flow occurs through the back side than turn around to the front side to let the fuel distribution in each cell stack of the stack could be uniform. We can obtain the best of cell stack operating temperature 35℃ ~ 40 ℃from the fuel cell test system. The stack combines with controllers which build by chip and circuit board, than test 100hours of the system output stability. The result of long time test show that the stack operating temperature kept at 40 ℃.The voltage of each cells are above 0.5 V and the system max effective power is 35 W with the water management rules. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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