In-situ fibre-optic diagnostic toll for PEM fuel cell stacks

拟议研究的目的是使聚合物电解质膜燃料电池（PEMFC）的制造商和用户能够部署价格合理的测量和诊断技术，并允许对确定燃料电池堆性能和健康状况的参数进行现场监测。燃料电池的运行取决于与反应动力学相结合的对反应物、生成物、热和带电物质流动的优化调节。在目前的燃料电池堆技术中，这些过程的调节和控制是基于复杂的设计和材料特性，结合热和水管理，并依赖于全球性能指标(例如：堆栈电压和电流，出口相对湿度和温度，压降)，它们对局部条件的变化相对不敏感

The objective of the proposed research is to enable manufacturers and users of polymer electrolyte membrane fuel cells (PEMFC) to deploy measurement and diagnostic technology that is affordable and that allows in-situ monitoring of parameters that determine performance and health of a fuel cell stack. The operation of a fuel cell depends on the optimized regulation of the flow of reactants, products, heat and charged species in conjunction with reaction kinetics. In current fuel cell stack technology, the regulation and control of these processes is based on elaborate design and material features in conjunction with heat and water management and relies on global performance indicators (e.g .stack voltage and current, outlet relative humidity and temperature, pressure drop), which are relatively insensitive to local changes in conditions that are believed to