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Energies 2014, 7(4), 2498-2514; doi:10.3390/en7042498
Article

Compact Design of 10 kW Proton Exchange Membrane Fuel Cell Stack Systems with Microcontroller Units

1
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Received: 13 December 2013; in revised form: 18 February 2014 / Accepted: 21 March 2014 / Published: 22 April 2014
(This article belongs to the Special Issue Polymer Electrolyte Membrane Fuel Cells)
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Abstract: In this study, fuel, oxidant supply and cooling systems with microcontroller units (MCU) are developed in a compact design to fit two 5 kW proton exchange membrane fuel cell (PEMFC) stacks. At the initial stage, the testing facility of the system has a large volume (2.0 m × 2.0 m × 1.5 m) with a longer pipeline and excessive control sensors for safe testing. After recognizing the performance and stability of stack, the system is redesigned to fit in a limited space (0.4 m × 0.5 m × 0.8 m). Furthermore, the stack performance is studied under different hydrogen recycling modes. Then, two similar 5 kW stacks are directly coupled with diodes to obtain a higher power output and safe operation. The result shows that the efficiency of the 5 kW stack is 43.46% with a purge period of 2 min with hydrogen recycling and that the hydrogen utilization rate µf is 66.31%. In addition, the maximum power output of the twin-coupled module (a power module with two stacks in electrical cascade/parallel arrangement) is 9.52 kW.
Keywords: fuel cell; microcontroller units; compact design; electrical coupling fuel cell; microcontroller units; compact design; electrical coupling
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Ma, H.; Cheng, W.; Fang, F.; Hsu, C.; Lin, C. Compact Design of 10 kW Proton Exchange Membrane Fuel Cell Stack Systems with Microcontroller Units. Energies 2014, 7, 2498-2514.

AMA Style

Ma H, Cheng W, Fang F, Hsu C, Lin C. Compact Design of 10 kW Proton Exchange Membrane Fuel Cell Stack Systems with Microcontroller Units. Energies. 2014; 7(4):2498-2514.

Chicago/Turabian Style

Ma, Hsiaokang; Cheng, Weiyang; Fang, Fuming; Hsu, Chinbing; Lin, Chengsheng. 2014. "Compact Design of 10 kW Proton Exchange Membrane Fuel Cell Stack Systems with Microcontroller Units." Energies 7, no. 4: 2498-2514.


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