Development of a small DMFC bipolar plate stack for portable applications |
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| Affiliation: | 1. Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;2. Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China;2. Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China;3. Center for Energy Storage Research, Green City Research Institute, Korea Institute of Science and Technology (KIST), Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea;4. State-assigned Electric Vehicle Power Battery Testing Center, China North Vehicle Research Institute, 4 Huaishuling, Beijing 100072, China;5. Department of Aeronautics and Astronautics, Fudan University, No. 220 Handan Road, Shanghai 200433, China;1. Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;2. Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;3. Department of Chemical Engineering, LKC Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Cheras, 43000 Kajang, Selangor, Malaysia;1. CNR – ITAE, National Research Council of Italy, Institute for Advanced Energy Technologies, Via Salita S. Lucia sopra contesse, 598126 Messina, Italy;2. IRD Fuel Cells A/S, Kullinggade 31, DK-5700 Svendborg, Denmark;1. University of Toronto Institute for Sustainable Energy, Faculty of Applied Science and Engineering, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King''s College Road, Toronto, ON M5S 3G8, Canada;2. Dokuz Eylul University, Faculty of Engineering, Mechanical Engineering Department, Tinaztepe, Buca, Izmir, 35397, Turkey;3. Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada;4. Dokuz Eylul University, The Graduate School of Natural and Applied Sciences, Mechanical Engineering Department, Tinaztepe Campus, 35397, Buca, Izmir, Turkey;5. Erzincan University, Department of Mechanical Engineering, Faculty of Engineering, Erzincan, Turkey;1. MEMS Center, School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;2. National Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology, Chongqing University, Chongqing 400044, China |
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| Abstract: | The direct methanol fuel cell (DMFC) is regarded as a promising candidate in portable electronic power applications. Bipolar plate stacks were systematically studied by controlling the operating conditions, and by adjusting the stack structure design parameters, to develop more commercial DMFCs. The findings indicate that the peak power of the stack is influenced more strongly by the flow rate of air than by that of the methanol solution. Notably, the stack performance remains constant even as the channel depth is decreased from 1.0 to 0.6 mm, without loss of the performance in each cell. Furthermore, the specific power density of the stack was increased greatly from ∼60 to ∼100 W l−1 for stacks of 10 and 18 cells, respectively. The current status of the work indicates that the power output of an 18-cell short stack reaches 33 W in air at 70 °C. The outer dimensions of this 18-cell short stack are only 80 mm × 80 mm × 51 mm, which are suitable for practical applications in 10–20 W DMFC portable systems. |
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