Effects of operating parameters on performance of a proton exchange membrane fuel cell
Effects of operating parameters on performance of a proton exchange membrane fuel cell
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DOI：
10.1016/j.jpowsour.2006.04.144
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发表时间：
2006-10
影响因子：
9.2
通讯作者：
M. Amirinejad;S. Rowshanzamir;M. H. Eikani
中科院分区：
文献类型：
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作者：
M. Amirinejad;S. Rowshanzamir;M. H. Eikani
实验研究了质子交换膜燃料电池（PEMFC）在不同操作条件下，分别以干氢和湿氧作为反应气体和氧化气体的性能。在单节PEM燃料电池上进行了实验，电池的有效面积为5cm ~ 2。结果表明，影响质子交换膜燃料电池性能的最重要因素是传质限制，包括反应气体和氧化气体向催化层活性中心的传质、质子从阳极侧通过膜向阴极侧的传质以及产水从阴极侧通过反扩散向阳极侧的传质。本文研究的操作参数，即反应气体的温度、压力和湿度，可以减少这些限制，提高燃料电池的性能。根据这些研究，最佳的条件是在较高的压力和高温下操作与加湿的反应气体。阴极侧加压对电池性能的影响要比阳极侧加压的影响大。
The performance of a proton exchange membrane fuel cell (PEMFC) under various operating conditions was investigated experimentally using dry and humidified hydrogen and oxygen as reactant and oxidant gases, respectively. Experiments have been carried out on a single PEM fuel cell with the active area of 5cm2. The results showed that the most important factor affecting the performance of PEMFC is the mass transport limitation including the transport of reactant and oxidant gases to active sites of catalyst layer, the transport of the proton from the anode side to the cathode side through the membrane, and the transport of produced water from the cathode side to the anode side by back diffusion mechanism. Operating parameters that examined in this paper i.e. temperatures, pressures, and humidity of reactant gases could decrease these limitations and improve the performance of the fuel cell. Based on these investigations, the optimum conditions are operation at higher pressure and elevated temperature with the humidified reactant gases. Furthermore, pressurized cathode side has better affected on the performance of the PEM fuel cell than pressurized anode side.