https://scholars.lib.ntu.edu.tw/handle/123456789/80952
標題: | Analysis of membraneless fuel cell using laminar flow in a Y-shaped microchannel | 作者: | Chang, Min Hsing Chen, Falin Fang, Nai-Siang |
關鍵字: | Laminar flow; Membraneless fuel cell; Microchannel | 公開日期: | 2006 | 卷: | 159 | 期: | 2 | 起(迄)頁: | 810-816 | 來源出版物: | Journal of Power Sources | 摘要: | In this study, we implemented a theoretical analysis for a novel microfluidic fuel cell that utilizes the occurrence of laminar flows in a Y-shaped microchannel to keep the separation of fuel and oxidant streams without turbulent mixing. The liquid fuel and oxidant streams enter the system at different inlets, and then merge and flow in parallel to one another through the channel between two electrodes without the need of a membrane to separate both streams. A theoretical model containing the flow kinetics, species transport, and electrochemical reactions within the channel and the electrodes is developed with appropriate boundary conditions and solved by a commercial CFD package. The performance of this novel fuel cell is analyzed by a systematic study with respect to some important physical factors and the geometric effect of channel size. Results indicate that the performance is primarily dominated by the mass transport to the electrodes especially at the cathode and could be raised significantly by using a high aspect ratio of cross-sectional geometry. © 2005 Elsevier B.V. All rights reserved. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/120100 https://www.scopus.com/inward/record.uri?eid=2-s2.0-33748061293&doi=10.1016%2fj.jpowsour.2005.11.066&partnerID=40&md5=e4f41a5891cf05fdd50dabc823595afb |
ISSN: | 03787753 | DOI: | 10.1016/j.jpowsour.2005.11.066 | SDG/關鍵字: | Computational fluid dynamics; Electrochemical electrodes; Fluidic devices; Laminar flow; Mixing; Reaction kinetics; Cross-sectional geometry; Membraneless fuel cells; Microchannels; Turbulent mixing; Fuel cells |
顯示於: | 應用力學研究所 |
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