F110 PEFCの膜厚さ方向の温度分布計測(OS-5 水素・燃料電池(2),一般講演,地球温暖化防止と動力エネルギー技術)

概要

論文の詳細を見る
The PEFC is a strong candidate for use as an alternative power source in future vehicle and power conditioning application. On operating PEFC, water management inside the cell is a large issue. However, the internal mechanism of water production has been less understood For understanding the mechanism, we need to figure out an internal temperature distriibution because the water production and its behavior are strongly influenced by the variation of the temperature. Up to now, there have only been measurements of in-plane direction temperature distribution. However, according to a mechanism of overvoltage increment by poor water management, information of temperature distribution across the cell is more required to analyze the water behavior. In this study, we measured temperature distribution across a cell by nipping very thin thermocouples in each layer of the cell, and figured out that the cathode catalyst layer had a maximum temperature under a steady state condition. We also figured out that this layer had a minimum when load current stopped.
一般社団法人日本機械学会の論文
2008-06-18