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Exergy analysis of a solid oxide fuel cell micropowerplant

Publication ,  Journal Article
Hotz, N; Senn, SM; Poulikakos, D
Published in: Journal of Power Sources
July 14, 2006

In this paper, an analytical model of a micro solid oxide fuel cell (SOFC) system fed by butane is introduced and analyzed in order to optimize its exergetic efficiency. The micro SOFC system is equipped with a partial oxidation (POX) reformer, a vaporizer, two pre-heaters, and a post-combustor. A one-dimensional (1D) polarization model of the SOFC is used to examine the effects of concentration overpotentials, activation overpotentials, and ohmic resistances on cell performance. This 1D polarization model is extended in this study to a two-dimensional (2D) fuel cell model considering convective mass and heat transport along the fuel cell channel and from the fuel cell to the environment. The influence of significant operational parameters on the exergetic efficiency of the micro SOFC system is discussed. The present study shows the importance of an exergy analysis of the fuel cell as part of an entire thermodynamic system (transportable micropowerplant) generating electric power. © 2005 Elsevier B.V. All rights reserved.

Duke Scholars

Published In

Journal of Power Sources

DOI

ISSN

0378-7753

Publication Date

July 14, 2006

Volume

158

Issue

1

Start / End Page

333 / 347

Related Subject Headings

  • Energy
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences
 

Citation

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Hotz, N., Senn, S. M., & Poulikakos, D. (2006). Exergy analysis of a solid oxide fuel cell micropowerplant. Journal of Power Sources, 158(1), 333–347. https://doi.org/10.1016/j.jpowsour.2005.09.023
Hotz, N., S. M. Senn, and D. Poulikakos. “Exergy analysis of a solid oxide fuel cell micropowerplant.” Journal of Power Sources 158, no. 1 (July 14, 2006): 333–47. https://doi.org/10.1016/j.jpowsour.2005.09.023.
Hotz N, Senn SM, Poulikakos D. Exergy analysis of a solid oxide fuel cell micropowerplant. Journal of Power Sources. 2006 Jul 14;158(1):333–47.
Hotz, N., et al. “Exergy analysis of a solid oxide fuel cell micropowerplant.” Journal of Power Sources, vol. 158, no. 1, July 2006, pp. 333–47. Scopus, doi:10.1016/j.jpowsour.2005.09.023.
Hotz N, Senn SM, Poulikakos D. Exergy analysis of a solid oxide fuel cell micropowerplant. Journal of Power Sources. 2006 Jul 14;158(1):333–347.
Journal cover image

Published In

Journal of Power Sources

DOI

ISSN

0378-7753

Publication Date

July 14, 2006

Volume

158

Issue

1

Start / End Page

333 / 347

Related Subject Headings

  • Energy
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences