Title :
The Effects of Different Flow Channels on Silicon-based Micro Direct Methanol Fuel Cells
Author :
Liu, Xiaowei ; Zhang, Bo ; Zhang, Yufeng ; Lu, Xuebin ; Wang, Xilian ; Zhang, Peng
Author_Institution :
MEMS Center, Harbin Inst. of Technol.
Abstract :
Based on CFD (computational fluid dynamics), modeling and numerical simulation of the muDMFC (micro direct methanol fuel cell) are carried out ,meanwhile the influence of the muDMFC with various flow channels design is studied using the CFDRC commercial code. The simulation results show that the performance of the muDMFC with the parallel flow field excelled the one with the dot flow field. The experimental results show the same performance compared with the simulated data, and the muDMFC with parallel flow field has a maximum power density of 5.92mW/cm2 at the voltage of 192.9mV while the one with dot flow field has a maximum power density of 4.37mW/cm2 at the voltage of 180.7mV.
Keywords :
computational fluid dynamics; direct methanol fuel cells; microchannel flow; micromechanical devices; 180.7 mV; CFDRC commercial code; computational fluid dynamics; different flow channels effect; dot flow field; microdirect methanol fuel cells; numerical simulation; parallel flow field; Anodes; Computational fluid dynamics; Computational modeling; Design engineering; Fuel cells; Methanol; Micromechanical devices; Numerical models; Systems engineering and theory; Voltage; CFD; dot flow field; parallel flow fleld; ¿DMFC;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2007. NEMS '07. 2nd IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
1-4244-0610-2
DOI :
10.1109/NEMS.2007.352164
