Studies of the effects of the reformer in an internal-reforming molten carbonate fuel cell by mathematical modeling

Hong Kyu Park, Ye Ro Lee, Mi Hyun Kim, Gui Yung Chung, Suk Woo Nam, Seong Ahn Hong, Tae Hoon Lim, Hee Chun Lim

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The effects of the reformer in an internal-reforming molten carbonate fuel cell (IR-MCFC) are studied by mathematical modeling. Temperature distributions, conversion of methane and compositions of gases are analyzed through mathematical modeling of the reformer and the cell. In the reformer, the methane-reforming reaction and the water-gas shift reaction occur simultaneously and the conversion of methane to hydrogen, calculated including the thermodynamic equilibrium of the reaction, reaches 99%. Additionally, the endothermic-reforming reaction contributes to a uniform temperature distribution. The voltage and the power of the IR-MCFC are similar to those of an external-reforming molten carbonate fuel cell (ER-MCFC), when the compositions at the inlet of the ER-MCFC are set as those at the outlet of the reformer in IR-MCFC. As the molar ratio of methane to water-gas decreases at a fixed total flow rate, the working voltage decreases.

Original languageEnglish
Pages (from-to)140-147
Number of pages8
JournalJournal of Power Sources
Volume104
Issue number1
DOIs
Publication statusPublished - 2002 Jan 15

Keywords

  • MCFC
  • Methane-reforming reaction
  • Reformer
  • Water-gas shift reaction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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    Park, H. K., Lee, Y. R., Kim, M. H., Chung, G. Y., Nam, S. W., Hong, S. A., Lim, T. H., & Lim, H. C. (2002). Studies of the effects of the reformer in an internal-reforming molten carbonate fuel cell by mathematical modeling. Journal of Power Sources, 104(1), 140-147. https://doi.org/10.1016/S0378-7753(01)00912-0