Effects of water-gas shift reaction on simulated performance of a molten carbonate fuel cell

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

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

A molten carbonate fuel cell (MCFC) is simulated. In order to determine the effects of the water-gas shift reaction, the calculated results such as temperature distribution, voltage distribution, conversion and performance, are compared with those calculated excluding the shift reaction. Uniformity in the temperature profile is deteriorated due to the shift reaction. At the entrance, hydrogen is consumed rapidly in order to reach the equilibrium state of the shift reaction. The conversion of hydrogen decreases along the direction of gas flow because of hydrogen generated by the shift reaction. Therefore, when the shift reaction is excluded, the conversion of hydrogen is higher than that in a practical cell. Additionally, at the same current density, the voltage calculated without the shift reaction would be higher than the real value. The effect of the shift reaction on the voltage distribution and cell performances is quite small.

Original languageEnglish
Pages (from-to)245-252
Number of pages8
JournalJournal of Power Sources
Volume103
Issue number2
DOIs
Publication statusPublished - 2002 Jan 1

Keywords

  • Cell performances
  • Hydrogen conversion
  • Molten carbonate fuel cell
  • Temperature distribution
  • 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

Fingerprint Dive into the research topics of 'Effects of water-gas shift reaction on simulated performance of a molten carbonate fuel cell'. Together they form a unique fingerprint.

Cite this