Experimental investigation of CO2 bubbles behavior in the anode flow fields of a micro direct methanol fuel cell

Bo Zhang; Yufeng Zhang; Peng Zhang; Xiaowei Liu

doi:10.1117/12.810591

12 January 2009 Experimental investigation of CO₂ bubbles behavior in the anode flow field of a micro direct methanol fuel cell

Bo Zhang, Yufeng Zhang, Peng Zhang, Xiaowei Liu

Author Affiliations +

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 71334A (2009) https://doi.org/10.1117/12.810591
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

CO2 gas bubbles have a great effect on the &mgr;DMFC (Micro Direct Methanol Fuel Cell) as the anode resultants. Visualization technique is one of the most important tools to study the formation, movement, and removal of CO2 gas bubbles. This paper presents an air-breathing micro direct methanol fuel cell made of PMMA for the visualization research. Four types of flow fields are fabricated in the anode plates. Different from the traditional &mgr;DMFCs, the stainless steel mesh is adopted as the current collector. The observation and study of CO2 bubbles behavior show that the quantities and bulks of CO2 gas bubbles increased as the current densities became higher. In addition, anode methanol solution flow rates and cell orientations also have complicated influence on the &mgr;DMFC performance.

Citation Download Citation

Bo Zhang, Yufeng Zhang, Peng Zhang, and Xiaowei Liu "Experimental investigation of CO₂ bubbles behavior in the anode flow field of a micro direct methanol fuel cell", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71334A (12 January 2009); https://doi.org/10.1117/12.810591

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