This paper summarizes experimental results of an air-fed polymer electrolyte membrane fuel cell system HyPM XR 12 (Hydrogenics Corp.) considering fuel cell temperature, stoichiometry, and load requirement variations at ambient and low-pressure operation. The experimentaludwork realized at a low-pressure test facility designed and assembled by the German Aerospace Center, Institute of Engineering Thermodynamics is based on an experimental design. The experimental results confirmudreduced fields of fuel cell operation as well as a decreased gross stack performance and efficiency at low operating pressures (950 mbar C p C 600 mbar) for the defined fuel cell temperature, stoichiometry, and load requirement. In addition, indexes of the operating parameters are introduced, characterizing the fuel cell operation with regard toudthe gross stack performance and efficiency at ambient and low-pressure levels. The discussion of the results considers analyses of fuel cell humidification.
展开▼
机译：本文总结了考虑燃料电池温度，化学计量和环境温度和低压操作的燃料电池温度，化学计量和负载要求变化的燃气喂高分子电解质膜燃料电池系统Hypm XR 12（氢化件Corp.）的实验结果。实验性 UDORK在德国航天中心设计和组装的低压测试设施，工程学会热力学研究所基于实验设计。实验结果证实了燃料电池运行的诸如燃料电池操作领域，以及用于定义的燃料电池温度，化学计量和负载要求的低操作压力（950毫巴C P C 600 MBar）的总堆叠性能和效率。此外，引入了操作参数的索引，其特征在于在环境和低压水平下的总堆叠性能和效率的燃料电池操作。讨论结果考虑了燃料电池加湿的分析。
展开▼
