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Polatization characteristics and fuel utilization in anode-supported solid oxide fuel cell using three-dimensional simulation

Authors
Hwang, Ji WonLee, Jeong YongJo, Dong HyunJung, Hyun WookKim, Sung Hyun
Issue Date
1월-2011
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Keywords
Anode-supported SOFC; Fuel Utilization; Polarization Curve; Simulation; Cell Performance
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.28, no.1, pp.143 - 148
Indexed
SCIE
SCOPUS
KCI
Journal Title
KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume
28
Number
1
Start Page
143
End Page
148
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/113410
DOI
10.1007/s11814-010-0397-y
ISSN
0256-1115
Abstract
A three-dimensional numerical simulation for anode-supported tubular solid oxide fuel cell (SOFC), which is characterized by good electrical conductivity, has been carried out. Perfomiance results by simulation are in good agreement with those by experiments, reported in [7]. Effect of various process conditions such as operating temperature, inlet velocity of fuel, and flow direction of inlet gases on the cell performance and fuel utilization has been further scrutinized. Polarization curve rises with increasing temperature of preheated gases and chamber, resulting from the incremented activity of catalysts within electrode. An effective way to reduce the temperature variation in the single cell with increasing current density has been sought, considering the temperature-dependent thermal expansion of materials. It has also been found that the fuel utilization is enhanced by increasing the cell length and operating temperature and lowering the inlet velocity of fuel.
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