Simulation results for MCFC temperature and voltage distribution, conversion and performance, including and excluding the water-gas shift reaction, were compared. The shift reaction caused the temperature profile to become non-uniform. At the entrance, hydrogen was consumed rapidly to reach equilibrium in the shift reaction. Hydrogen conversion decreased along the gas flow because of hydrogen generated by the shift reaction. Therefore, hydrogen conversion was higher than in a practical cell when the shift reaction is excluded. 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 voltage distribution and cell performances was quite small. This is an abstract of an article originally published in J. of Power Stations 103(2) 245-252 (1 January 2002).
|Number of pages||8|
|Specialist publication||Fuel Cells Bulletin|
|Publication status||Published - 2002 May|
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Strategy and Management