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Papers from the yank Ceramic Society's thirty first overseas convention on complicated Ceramics and Composites, held in Daytona seashore, Florida, January 21-26, 2007. content material comprises papers on contemporary technical growth by means of nationwide laboratories, universities and personal industries on reliable oxide gas mobile expertise together with SOFC part fabrics, processing, cell/stack fabrication and layout, electrochemical functionality and balance, long term chemical interactions, interface engineering, modeling, attempt techniques and function analysis.Content:
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Extra info for Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4
In the cube module test, the output power of the cell was lower than the single cell. When the cathode current corrector was two terminals, the output power was higher than that of single current correction. At 550°C, the output power was the highest, but it decreased at higher temperatures. It is because the too high temperature causes the electronic conduction thorough the electrolyte. At 600°C, the output power increased with the increasing the flow rate of the cathode gas because the temperature decreased.
Careful consideration of cell dimension i s necessary to optimize cell stack module. From this calculation, the cell uith under 1 cm length appeared to be reasonable to h e r the perfomiance loss ( 5 % at 600 "C operation). from experimental? I Yes 1 Calculate I - U R d R h ~ 1 Loss of performance Figure 5 : (a) Current collecting modal  and (b) procedure to determine true cell resistance and performa~iceloss and equivalent circuit of the tubular SOFC. Advances in Solid Oxide Fuel Cells I l l .
I , have various structural advantages over the electrolyte-supported type cells. First. thickness of an electrolyte layer coated on the channel wall can be controlled up to about a few tens of micro-meters, while the wall thickness of the electrolyte-supported honeycomb needs to be more than 150 pm to maintain its mechanical strength. Second, air and fuel gases can be supplied through the channel and honeycomb body. If fuel passes through channels. then body of honeycomb can be used as air supplying pass.