Performance Analysis of a New Design of Micro Direct Methanol Fuel Cell (μ-DMFC)

• Main Authors: Hung-Yi Lin, 林弘益
• Other Authors: Falin Chen
• Format: Others
• Language: en_US
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/54817028259504608852

碩士 === 國立臺灣大學 === 應用力學研究所 === 95 === In this study, a design for a novel micro direct methanol fuel cell (μ-DMFC) has been investigated theoretically. The fuel and oxidant are methanol and oxygen, respectively, which both dissolved in dilute sulfuric acid solutions. This concept of structure is distinct the conventional bipolar plants where the anode and cathode streams are made by two separate substrates. The model is applied to simulate the species transport within the micro DMFC system and the cell performance is analyzed significantly by examining the considerable parameters such as the volumetric flow rate, concentration of reactants, catalyst layers, and channel geometry. The commercial CFD package, CFD-RC, is employed to perform the numerical simulation. These results reveal that the cell performance is mainly restricted by the cathode transport. The improved approach also can be presented on the influence of cell performance in detail.