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Effect of water distributions on performances of JARI standard PEFC by using neutron radiography

中性子ラジオグラフィを用いたJARI標準PEFCセルの発電性能に与える水分布の影響の解析

村川 英樹*; 植田 忠伸*; 吉田 壮寿*; 杉本 勝美*; 浅野 等*; 竹中 信幸*; 持木 幸一*; 飯倉 寛; 安田 良; 松林 政仁

Murakawa, Hideki*; Ueda, Tadanobu*; Yoshida, Takehisa*; Sugimoto, Katsumi*; Asano, Hitoshi*; Takenaka, Nobuyuki*; Mochiki, Koichi*; Iikura, Hiroshi; Yasuda, Ryo; Matsubayashi, Masahito

In order to clarify the effects of water on performances of a Polymer Electrolyte Fuel Cell (PEFC), measurements of water distribution in a Japan Automobile Research Institute standard PEFC were carried out by means of neutron radiography. Furthermore, the cell voltage and the pressure drop between inlet and outlet of the air were simultaneously measured. From the measurements, the relation between cell voltage, pressure drop and movement of the water plug in the channel was confirmed. The PEFC performances were recovered as the water plug evacuated. Condensed water in the channel decreased with the relative humidity of air. However, it may affect the MEA permanence. Therefore, the most appropriate operating conditions should be decided for taking into account both the cell performances and the permanencies.

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パーセンタイル:14.45

分野:Instruments & Instrumentation

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