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http://dx.doi.org/10.5229/JKES.2015.18.4.172

Effect of Air Flow Rate on the Performance of Planar Solid Oxide Fuel Cell using CFD  

Kim, Danbi (Department of Chemical Engineering, Kwangwoon University)
Han, Kyoungho (Department of Chemical Engineering, Kwangwoon University)
Yoon, Do-Young (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Journal of the Korean Electrochemical Society / v.18, no.4, 2015 , pp. 172-181 More about this Journal
Abstract
Solid Oxide Fuel Cells (SOFC) continue to be among the most promising alternative energy devices. This paper addresses i-V characteristics of SOFC with a focus on air flow rate along the planar anode electrodes. To address this, detailed Butler-Volmer kinetics are implemented in a general-purpose CFD code FLUENT. The numerical results were validated against experimental data from the literature showing excellent match with i-V polarization data ranging 1V-0.4V. Numerical calculations of fuel cell operation under different flow rare conditions were performed in three-dimensional geometries. Results are presented in terms of concentration distribution of hydrogen, oxygen, and water. The simulations and results indicate that advanced CFD with UDF(User-Defined Function) of Butler-Volmer kinetics can be used to identify the conditions leading to air flow rate and specific surface area and guide development of operating conditions and improve the fuel cell system performance.
Keywords
SOFC; CFD; electrochemistry; flow rate; concentration loss;
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Times Cited By KSCI : 1  (Citation Analysis)
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