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http://dx.doi.org/10.7316/KHNES.2022.33.5.550

Numerical Analysis in a 1 kWe SOFC Stack for Variation of the Channel Height in Separators  

YIN, HAOYUAN (Department of Mechanical Engineering, Hannam University)
KIM, YOUNG JIN (Department of Mechanical Engineering, Hannam University)
YI, KUNWOO (Department of Mechanical Engineering, Hannam University)
KIM, HYEON JIN (High Temperature Energy Conversion Laboratory, Korea Institute of Energy Research)
YUN, KYONG SIK (High Temperature Energy Conversion Laboratory, Korea Institute of Energy Research)
YU, JI HAENG (High Temperature Energy Conversion Laboratory, Korea Institute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.5, 2022 , pp. 550-556 More about this Journal
Abstract
In this study, the flow uniformity was analyzed by performing numerical analysis on the 1 kWe internal manifold type solid oxide fuel cell stack according to the channel height of the separator. Also, it was examined by varying the fuel utilization rate and oxygen utilization rate. From the calculation results, we found that as the channel height of the separator decreased, the pressure drop increased exponentially. In addition, it was found that as the channel height of the separator decreased, the gas flow resistance inside the unit cell increased, and the flow resistance increased the pressure drop, thereby improving the flow uniformity inside the stack. Finally, the calculation results showed that as the fuel and oxygen utilization increased, the flow uniformity also improved.
Keywords
Solid oxide fuel cell; Stack; Separator; Channel height; Flow uniformity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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