Visualization and measurement of dynamic water behavior in PEFC by neutron radiography

被引：0
|
作者：
Ueda, Tadanobu [1 ]
Takenaka, Nobuyuki [1 ]
Asano, Hitoshi [1 ]
Tanimoto, Kazumi
Mochiki, Ko-ichi
Kawabata, Yuji
Matsubayashi, Masahito
机构：
[1] Kobe Univ, Kobe, Hyogo, Japan
来源：
PROCEEDINGS OF THE ASME/JSME THERMAL ENGINEERING SUMMER HEAT TRANSFER CONFERENCE 2007, VOL 2 | 2007年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Hydrogen gas and air are supplied in saturated moist condition to keep a membrane wet in a PEFC. Condensation may occur in the cathode by the FC reaction, since air is saturated moist condition. The condensed water may affect on the fuel cell performance. It is very important for the design to know the water behaviors. In this study, in-situ visualization of an operating PEFC was carried by neutron radiography with the cell voltage measurements. A JARI standard cell was improved for the visualization with the same performance. Water distribution in the fuel cell could be quantitatively measured from visualized images via some image processing methods. The relationships between the water distributions and cell voltage fluctuations were clearly shown from the visualization and measurement results. The difference in water distribution for three types of gas supply channel was clearly shown.
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页码：93 / 99
页数：7
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