Performance Tests and Pressure Drop Measurements in the Anode Flowfield of a μDMFC

✍ Scribed by S.-S. Hsieh; W.-C. Chen

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 894 KB
• Volume: 10
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200900149

✦ Synopsis

Abstract

Cell performance tests and measurements of the pressure drops in the anode flow channels of a custom‐made microdirect methanol fuel cell (μDMFC) are conducted and studied for different methanol concentrations (0.5–2 M), flow rates (10–20 sccm) and operating temperatures (40–80 °C). The anode flowfields consist of three channel/four pass flow channels with widths of 500–2000 μm and a total length of 300–400 mm. Moreover, flow characteristics of the CO~2~ gas bubbles and methanol solution in the anode flow channels are identified and analysed for CO~2~ fraction through visualisation. Finally, an optimal channel size for the present μDMFC is obtained.