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Direct methanol fuel cell bubble removal mechanism using magnetic actuation |
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| Authors: | Win-Jet Luo Min-Feng Sung Min-Shiang Huang Yu-Wei Hsu |
| Institution: | 1. Graduate Institute of Precision Manufacturing, National Chi-Yi University of Technology, Taichung, Taiwan;2. Product R&3. D Department, Kenda Rubber Industrial Company, Changhua, Taiwan;4. Department of Refrigeration, Air-Conditioning and Energy Engineering, National Chi-Yi University of Technology, Taichung, Taiwan |
| Abstract: | This article develops a direct methanol fuel cell (DMFC) with a magnet-actuated bubble removal mechanism. A micro-DC motor is used to control the bubble removal mechanism. The lower magnetic device is operated to extrude a Polydimethylsiloxane (PDMS) runner to compress the liquid fuel in the anode flow channel, forcing the CO2 bubbles in the runner to flow toward the outlet end. The bubble retention in the anode flow channel is thereby improved, enhancing the cell performance. The proposed mechanism stability and performance and Polymethylmethacrylate (PMMA) runner are also discussed. |
| Keywords: | Direct methanol fuel cell polydimethylsiloxane magnet actuated microelectromechanical system bubble removal mechanism |