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题名: Effects of Anode Flow Field Design on CO2 Bubble Behavior in mu DMFC
作者: Li, Miaomiao1;  Liang, Junsheng1, 2;  Liu, Chong1, 2;  Sun, Gongquan3;  Zhao, Gang3
关键词: mu DMFC ;  flow field ;  pressure drop ;  CO2 bubbles
刊名: SENSORS
发表日期: 2009-05-01
DOI: 10.3390/s90503314
卷: 9, 期:5, 页:3314-3324
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Electrochemistry ;  Instruments & Instrumentation
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Instruments & Instrumentation
英文摘要: Clogging of anode flow channels by CO2 bubbles is a vital problem for further performance improvements of the micro direct methanol fuel cell (mu DMFC). In this paper, a new type anode structure using the concept of the non-equipotent serpentine flow field (NESFF) to solve this problem was designed, fabricated and tested. Experiments comparing the mu DMFC with and without this type of anode flow field were implemented using a home-made test loop. Results show that the mean-value, amplitude and frequency of the inlet-to-outlet pressure drops in the NESFF is far lower than that in the traditional flow fields at high mu DMFC output current. Furthermore, the sequential images of the CO2 bubbles as well as the mu DMFC performance with different anode flow field pattern were also investigated, and the conclusions are in accordance with those derived from the pressure drop experiments. Results of this study indicate that the non-equipotent design of the mu DMFC anode flow field can effectively mitigate the CO2 clogging in the flow channels, and hence lead to a significant promotion of the mu DMFC performance.
关键词[WOS]: METHANOL FUEL-CELLS ;  PROTON-EXCHANGE MEMBRANE ;  PRESSURE-DROP ;  PERFORMANCE ;  CHANNEL ;  VISUALIZATION
语种: 英语
WOS记录号: WOS:000266381100010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141312
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian 116023, Liaoning Prov, Peoples R China
2.Dalian Univ Technol, Key Lab Precis & Nontradit Machining Technol, Minist Educ, Dalian 116023, Liaoning Prov, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian, Liaoning Prov, Peoples R China

Recommended Citation:
Li, Miaomiao,Liang, Junsheng,Liu, Chong,et al. Effects of Anode Flow Field Design on CO2 Bubble Behavior in mu DMFC[J]. SENSORS,2009,9(5):3314-3324.
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