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

Autor:	Michael B. Pomfret, Jeffrey C. Owrutsky, Daniel A. Steinhurst
Rok vydání:	2011
Předmět:	Materials science Waste management Chemical engineering Thermal Degradation (geology) Proton exchange membrane fuel cell Solid oxide fuel cell Ethanol fuel Direct-ethanol fuel cell Anode
Zdroj:	ECS Transactions. 35:1563-1570
ISSN:	1938-6737 1938-5862
Popis:	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 ºC. 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da2163e802993a2a4beb8ec70acf8553 https://doi.org/10.1149/1.3570141 Zobrazit plný text záznamu