Development of a conceptual design model of a direct ethanol fuel cell (DEFC)
Development of a conceptual design model of a direct ethanol fuel cell (DEFC)
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DOI：
10.1016/j.ijhydene.2015.06.070
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发表时间：
2015-09
影响因子：
7.2
通讯作者：
S. Abdullah;S. Kamarudin;U. A. Hasran;M. S. Masdar;W. Daud
中科院分区：
文献类型：
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作者：
S. Abdullah;S. Kamarudin;U. A. Hasran;M. S. Masdar;W. Daud
小型燃料电池似乎是提供便携式能源问题的有吸引力的解决方案。一个有前途的系统是直接乙醇燃料电池（DEFC）堆，其是模块化的并且构造简单，并且具有某些属性，例如是紧凑且轻质的电池，这使得其有利于便携式应用。然而，DEFC商业化仍然存在许多挑战，例如水传输管理，EtOH交叉和阳极上缓慢的乙醇氧化反应（EOR）动力学。DEFC涉及的现象是复杂的，包括传输过程，热化学反应和流体力学是很难量化的实验。另一方面，数学建模是一种强大而经济的工具，使我们能够更好地理解操作过程中发生的物理现象。在这项研究中，开发了一个概念设计，以获得功率性能曲线。电压和电流特性与建议的MEA几何形状将被用作起点，更详细的建模和仿真研究，旨在提供一个基本的了解DEFC的内部过程。这项研究是用来作为初步估计工程师设计和优化的DEFC用于便携式应用。
Small fuel cells appear to be appealing solutions to the problem of providing portable energy sources. One promising system is the Direct Ethanol Fuel Cell (DEFC) stacks, which are modular and simple to construct and have certain attributes, such as being a compact and lightweight cell, that make it favorable for portable applications. Nevertheless, there are still many challenges for DEFC commercialization, such as water transport management, EtOH crossover and the sluggish Ethanol Oxidation Reaction (EOR) kinetics on the anode. The phenomena involved with DEFCs are complicated and include transport processes, thermochemical reactions and fluid mechanics that are hard to quantify experimentally. On the other hand, mathematical modeling is a powerful and economical tool that enables us to better understand the physical phenomena that occur during operation. In this study, a conceptual design was developed to obtain a power performance curve. The voltage and current characteristics with the proposed MEA geometry will be used as starting point for more detailed modeling and simulation studies that aim to provide a basic understanding of the internal process of the DEFC. This study is to be used as initial estimations for engineers to design and optimize the DEFC for use in portable applications.