Prediction of anode performances of direct methanol fuel cells with different flow-field design using computational simulation |
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| Affiliation: | 1. Advanced Fuel Cell Research Center, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Republic of Korea;2. Department of Chemical Engineering, Yonsei University, Seoul 120-749, Republic of Korea;1. School of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Low Metamorphic Coal clean Utilization, Yulin University, Yulin 719000, PR China;2. School of Chemical Engineering, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi’an 710069, PR China;3. Conservation Technology Department, The Palace Museum, Beijing 100009, PR China;4. Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, PR China;1. Department of Chemistry, Dr. Bhupendranath Dutta Smriti Mahavidyalaya, Burdwan 713407, West Bengal;2. Department of Chemistry, Burdwan University, Golapbag, Burdwan 713104, West Bengal;3. Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400085, India;1. School of Engineering and Applied Sciences, United States;2. Francis Bitter Magnet Lab, Department of Chemistry, MIT, United States;3. Department of Chemistry, Aarhus University, Denmark;4. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States;1. CEFT, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal;2. TU Delft, Department of Biotechnology, Office 1.84, Julianalaan 67, 2628 BC Delft, The Netherlands;1. College of Information Science and Engineering, Northeastern University, Shenyang 110819, China;2. MEMS Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Three-dimensional computational simulation was employed to illustrate the performance characteristics according to the flow-field design by solving the physics in the flow field and the diffusion layer and by calculating the electrochemical reaction at the catalyst layer. The pressure loss and the concentration distribution in the anode were analyzed for four types of flow field, parallel, serpentine, parallel serpentine and zigzag type. Also the anode current density distribution was predicted at the various overpotentials. The cell performance was proportional to the pressure drop for all the flow-field types. Zigzag type showed the best performance which has a good resistance against the fuel concentration polarization and the next was serpentine. |
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