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负担得起的测量和诊断技术，并允许现场监测确定燃料电池堆性能和健康的参数。燃料电池的操作取决于反应物、产物、热和带电物质的流动的优化调节以及反应动力学。在当前的燃料电池堆技术中，这些过程的调节和控制是基于结合热和水管理的精心设计和材料特征，并且依赖于全局性能指标（例如，堆电压和电流、出口相对湿度和温度、压降），其对被认为

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