Non-Contact Measurement of H2O Concentration in a Fuel Cell Channel by Tunable Diode Laser Absorption Spectroscopy
Non-Contact Measurement of H2O Concentration in a Fuel Cell Channel by Tunable Diode Laser Absorption Spectroscopy
复制标题
利用可调谐二极管激光吸收光谱法非接触式测量燃料电池通道中的 H2O 浓度
DOI：
10.1299/kikaib.72.1627
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
K. Fukuzato
中科院分区：
文献类型：
--
作者：
Kosuke Nishida;S. Tsushima;K. Teranishi;S. Hirai;K. Fukuzato
聚合物电解质燃料电池（PEFC）由于其高功率密度和低工作温度，在移动和汽车应用以及分布式电源系统中具有很好的应用前景。然而，阴极气道中的水管理对于PEFC的高性能运行至关重要，因为需要向反应场所提供足够的氧气。本研究采用可调谐二极管激光吸收光谱（TDLAS）技术，实现了PEFC气体通道中水蒸气浓度的非接触式测量技术。利用该技术准确地估算了燃料电池运行过程中水蒸气浓度的瞬态分布，阐明了运行条件和通道结构对燃料电池通道中水浓度的影响。
Polymer electrolyte fuel cell (PEFC) is a promising candidate for mobile and vehicle applications and distributed power systems due to its high power density and low operation temperature. However, water management in a cathode gas channel is essential for high performance operation of PEFC because oxygen needs to be sufficiently supplied to reaction sites. In this study, we have developed the non-contact measurement technique of water vapor concentration in a gas channel of PEFC using tunable diode laser absorption spectroscopy (TDLAS). Transient profiles of water vapor concentration in an operating PEFC are accurately estimated by this technique and the effects of operating conditions and channel structure on H2O concentration in a fuel cell channel are clarified.