固体高分子形燃料電池の加湿条件の検討

概要

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Abstract Environmental problems have become aggravated by consuming the fossil energy. Then, the fuel cell that doesn't exhaust carbon dioxide is paid to attention. As for Polymer Electrolyte Fuel Cell (PEFC), the water management is a noteworthy problem. The method of external humidification is coupled with the systems configuration increasing. It is thought that the generated water is able to keep the water content of membrane when a reactant gas is supplied to the PEFC by counter flow. In this study, the performance of PEFC is examined in cases of counter flow and parallel flow, Iow humidified condition and dry condition. Both low humidified condition and dry condition obtained a high power density with case of the temperature of the cell at 50℃ or less. Moreover, the similar performance under counter flow and parallel flow both at low humidified condition was obtained. When we operate the cell for a long time, the cell voltage was able to be maintained by changing the air of utilization rate .
宮崎大学の論文
2006-08-30