Performance Analysis of a New Design of Micro Direct Methanol Fuel Cell (μ-DMFC)
Date Issued
2007
Date
2007
Author(s)
Lin, Hung-Yi
DOI
en-US
Abstract
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.
Subjects
微型甲醇燃料電池
甲醇
數值模擬
電池性能
陰極氧氣傳輸能力
Micro DMFC
Methanol
Numerical simulation
Cell performance
Oxidant consumption rate
Limiting current density
Type
thesis
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