Thermal Imaging of Solid Oxide Fuel Cell Anode Degradation with Dry and Wet Ethanol Fuel Flows

被引：6
|
作者：
Pomfret, Michael B. [1 ]
Steinhurst, Daniel A. [2 ]
Owrutsky, Jeffrey C. [1 ]
机构：
[1] US Naval Res Lab, Div Chem, 4555 Overlook Ave SW, Washington, DC 20375 USA
[2] Nova Res Inc, Alexandria, VA 22308 USA
来源：
SOLID OXIDE FUEL CELLS 12 (SOFC XII) | 2011年 / 35卷 / 01期
关键词：
IN-SITU; DIRECT-ALCOHOL; METHANOL; STEAM; SOFC; DECOMPOSITION; CONVERSION; OXIDATION; CATALYSTS; SYSTEM;
D O I：
10.1149/1.3570141
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Near-infrared thermal imaging has been used to study the effects of humidifying ethanol fuel flows on the surface temperature of SOFC anodes. Temperatures were monitored for SOFCs operating with dry and wet ethanol fuel flows at 800 degrees C. The results indicate a dramatic decrease in the amount of carbon that is formed when ethanol flows are humidified. Humidifying the fuel stream reduces both the cooling observed under ethanol fuel flow conditions and the heating observed under post-fuel flow electrochemical oxidation conditions. The spatial variation of the temperature is also reduced. Thermal imaging is capable of detecting fatigue in functioning cells because temperature variations observed in situ provide early signs of SOFC failure, therefore thermal imaging is a viable system diagnostic.
引用
收藏
页码：1563 / 1570
页数：8
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