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

Ji Won Hwang; Jeong Yong Lee; Dong Hyun Jo; Hyun Wook Jung; Sung Hyun Kim

Korean Journal of Chemical Engineering, Vol.28, No.1, 143-148, January, 2011

DOI10.1007/s11814-010-0397-y Export Citation

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

Ji Won Hwang, Jeong Yong Lee, Dong Hyun Jo, Hyun Wook Jung^†, and Sung Hyun Kim

Department of Chemical and Biological Engineering, Korea University, Seoul 136-713, Korea

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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. Performance 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.

Keywords:Anode-supported SOFC;Fuel Utilization;Polarization Curve;Simulation;Cell Performance

[References]

Vayenas CG, Debenedetti PG, Chem. Eng. Sci., 38, 1817 (1983)
Hirano A, Suzuki M, Ippommatsu M, J. Electrochem. Soc., 139, 2744 (1992)
Bessette NF, Wepfer WJ, Winnick J, J. Electrochem. Soc., 142(11), 3792 (1995)
Ferguson JR, Fiard JM, Herbin R, J. Power Sources., 58, 109 (1996)
Li PW, Chyu MK, J. Power Sources., 123, 487 (2003)
Li PW, Suzuki K, J. Electrochem. Soc., 151(4), A548 (2004)
Lee SB, LimTH, Song RH, Shin DR, Dong SK, Intern.J. Hydrogen Energy., 33, 2330 (2008)
Fuel Cell Modules Manual: ANSYS Group (http://www.fluent.com).
Bird RB, Stewart WE and Lightfoot EN, Transport phenomena, 2nd Ed., John Wiley & Sons, New York (2002)
O’Connell JP and Haile JM, Thermodynamics: Fundamentals for applications, Cambridge University Press, New York (2005)
Bettini A, Introduction to elementary particle physics, Cambridge University Press, New York (2008)
Larminie J and Dicks A, Fuel cell systems explained, 2nd Ed., John Wiley & Sons, Chichester (2003)
Ni M, Leung MKH, Leung DYC, Energy Conv. Manag., 48(5), 1525 (2007)

[Referenced By]

[Related Articles]

[1] Vayenas CG, Debenedetti PG, Chem. Eng. Sci., 38, 1817 (1983)

[2] Hirano A, Suzuki M, Ippommatsu M, J. Electrochem. Soc., 139, 2744 (1992)

[3] Bessette NF, Wepfer WJ, Winnick J, J. Electrochem. Soc., 142(11), 3792 (1995)

[4] Ferguson JR, Fiard JM, Herbin R, J. Power Sources., 58, 109 (1996)

[5] Li PW, Chyu MK, J. Power Sources., 123, 487 (2003)

[6] Li PW, Suzuki K, J. Electrochem. Soc., 151(4), A548 (2004)

[7] Lee SB, LimTH, Song RH, Shin DR, Dong SK, Intern.J. Hydrogen Energy., 33, 2330 (2008)

[8] Fuel Cell Modules Manual: ANSYS Group (http://www.fluent.com).

[9] Bird RB, Stewart WE and Lightfoot EN, Transport phenomena, 2nd Ed., John Wiley & Sons, New York (2002)

[10] O’Connell JP and Haile JM, Thermodynamics: Fundamentals for applications, Cambridge University Press, New York (2005)

[11] Bettini A, Introduction to elementary particle physics, Cambridge University Press, New York (2008)

[12] Larminie J and Dicks A, Fuel cell systems explained, 2nd Ed., John Wiley & Sons, Chichester (2003)

[13] Ni M, Leung MKH, Leung DYC, Energy Conv. Manag., 48(5), 1525 (2007)