Effects of anode serpentine flow fields on the performance of μ-DMFC
This paper dedicated to the investigations of anode mass transfer characteristics of single serpentine,double serpentine,triple serpentine and quadruple serpentine flow fields to choose the best flow field structure.In this paper,the structure sizes of anode different serpentine flow fields have been designed to make the same duty cycle based on the theory analysis.Then a multi-physics 3D model has been established and simulated to analyze and compare mass transfer characteristics of every serpentine flow fields including pressure distributions,velocity distributions and concentration distributions.The current collector plates containing different serpentine flow fields have been made by micromachining.To verify the simulation analysis,the μ-DMFCs with different serpentine flow fields have been packaged and tested.Compared with the simulations,the experiment results come up with the conclusion that the performance of μ-DMFC with double serpentine flow field is a bit higher than those with others.In conclusion,though the cell performance with double serpentine flow field is a bit higher than that with others,its fabrication process is so complicated and the improvement of the performance is not obvious.It is concluded that increasing the serpentine channels of anode flow field doesn’t have many benefits on the cell performance.
micro direct methanol fuel cell serpentine flow field mass transfer
Fang Shuo Zhang Yufeng Fu Wenting Liu Xiaowei
MEMS Center, Harbin Institute of Technology, Harbin, China Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education,China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）