There has been increasing interest in the development of Polymer Electrolyte Membrane Fuel Cells (PEMFCs) in recent years as they are the most promising clean energy source for applications in industrial, automotive, portable, and stationary devices. In the present study, characterization of a semi-empirical polymer electrolyte membrane fuel cell model for a test bench of a 5 kW Ballard fuel cell system using a Nafion 117 membrane is performed for the effect of water dynamics on its electrical behavior as it is viewed as a serious issue by fuel cell researchers. The model performance is evaluated for its static and dynamic behavior through the experimental results obtained from a 5 kW Ballard fuel cell stack system to investigate the internal water phenomena of the membrane. The findings of the investigation indicate that the performance of PEMFCs can be significantly improved by maintaining the membrane water content, H2O/SO3−H+, to its optimal value. Thus, the developed model serves as a benchmark tool for the scientific and industrial community to optimize and evaluate the structural design of the PEMFC system for its scale up in terms of its water dynamics.

中文翻译：

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半经验燃料电池模型的表征和实验验证，用于研究使用 Nafion 117 聚合物膜的 5 kW 巴拉德电堆系统的电行为的水动力学

近年来，人们对聚合物电解质膜燃料电池 (PEMFC) 的开发越来越感兴趣，因为它们是最有前途的清洁能源，可用于工业、汽车、便携式和固定设备。在本研究中，对使用 Nafion 117 膜的 5 kW 巴拉德燃料电池系统测试台的半经验聚合物电解质膜燃料电池模型进行表征，以观察水动力学对其电气行为的影响作为燃料电池研究人员的一个严重问题。通过从 5 kW 巴拉德燃料电池堆系统获得的实验结果来评估模型性能的静态和动态行为，以研究膜的内部水现象。调查结果表明，通过将膜含水量 H2O/SO3−H+ 保持在最佳值，可以显着提高 PEMFC 的性能。因此，开发的模型可作为科学和工业界的基准工具，用于优化和评估 PEMFC 系统的结构设计，以便在水动力学方面进行放大。