Abstract
The model developed in the first part of this work is used to predict the cell potentials and the irreversible Gibbs free energy of a stack of 15 cells. The model starts from a phenomenological equation of a polarization curve with the extent of reaction as the independent variable. Two extreme kinds of flow of reagents, defined as Chain and Separate Flows respectively, are considered. The cell potentials are obtained by a combination of the potential of the two extreme cases of flow. The stack cell potentials and the efficiencies, estimated by the model, reproduce the general characteristics obtained by the experiments.
Similar content being viewed by others
References
Lutz A.E., Larson R.S., Keller J.(2002). Int. J. of Hydrogen Energy 27:1103
Kazim A.(2004). Energy Conversion and Management 45: 1949
Y.A. Cengel and M.A. Boles, ‘Thermodynamics – An Engineering Approach”, 2nd ed. (Mc Graw-Hill, Inc., 1994)
Oosterkamp P.F., Goorse A.A., Blomen L.J.(1993). J. Power Sources 41: 239
K. Kordesch and G. Simader, ‘Fuel Cells and Their Applications’, (VCH, 1996).
E. Chen, in Gregor Hoogers (Ed), ‘Thermodynamics and Electrochemical Kinetics’, Fuel Cell Technology Handbook (CRC Press LLC, 2003) Ch. 3, pp. 3.1–3.30
A. Weber, R. Darling, J. Meyers and J. Newman, ‘ Mass Transfer at Two-Phase and Three-Phase Interfaces’, Fundamentals and Survey of Systems, Handbook of Fuel Cells, Fundamental Technology and Applications, Vol. 1, Ch. 7 (Ed. Wiley, 2003), pp. 47–69
Demin A.K., Tsiakaras P.E., Sobyanin V.A., Hramova S.Yu. (2002). Solid State Ionics 152–153: 55
Dante R.C., Lehmann J., Solorza-Feria O.(2005). J. Appl. Electrochem. 35/3: 327
Bockris J., Srinivasan S.(1969). “Fuel Cells: Their Electrochemistry”. Mc Graw Hill, New York
Kim J., Lee S.M. and Srinivasan S.,Chamberlin C.E.(1995). J. Electrochem. Soc. 142: 2670
Springer T.E., Rockward T.A., Zawodzinski T.A. and Gottesfeld S. (2001). Journal of the Electrochem. Soc. 148(1): A11
Newman J. (1979). Electrochim. Acta 24: 223
McQuarrie D.A. and Simon J.D.(1999). “Molecular Thermodynamics”. University Science Books, Sauzalito, California, USA,pp. 581–638
Acknowledgments
The Deutscher Akademischer Austausch Dienst (German Academic Exchange Service), DAAD, supported the stay of Prof. R. Dante at the Fachhochschule Stralsund.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
DANTE, R.C., MENZL, F., LEHMANN, J. et al. On efficiency of both single fuel cells and stacks II. J Appl Electrochem 36, 187–193 (2006). https://doi.org/10.1007/s10800-005-9051-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10800-005-9051-5