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 language | English |
|---|---|
| Pages (from-to) | 245-252 |
| Number of pages | 8 |
| Journal | Journal of Power Sources |
| Volume | 103 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2002 Jan 1 |
| Externally published | Yes |
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Keywords
- Cell performances
- Hydrogen conversion
- Molten carbonate fuel cell
- Temperature distribution
- Water-gas shift reaction
ASJC Scopus subject areas
- Electrochemistry
- Fuel Technology
- Materials Chemistry
Cite this
Effects of water-gas shift reaction on simulated performance of a molten carbonate fuel cell. / Kim, Mi Hyun; Park, Hong Kyu; Chung, Gui Yung; Lim, Hee Chun; Nam, SukWoo; Lim, Tae Hoon; Hong, Seong Ahn.
In: Journal of Power Sources, Vol. 103, No. 2, 01.01.2002, p. 245-252.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of water-gas shift reaction on simulated performance of a molten carbonate fuel cell
AU - Kim, Mi Hyun
AU - Park, Hong Kyu
AU - Chung, Gui Yung
AU - Lim, Hee Chun
AU - Nam, SukWoo
AU - Lim, Tae Hoon
AU - Hong, Seong Ahn
PY - 2002/1/1
Y1 - 2002/1/1
N2 - 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.
AB - 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.
KW - Cell performances
KW - Hydrogen conversion
KW - Molten carbonate fuel cell
KW - Temperature distribution
KW - Water-gas shift reaction
UR - http://www.scopus.com/inward/record.url?scp=0036132996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036132996&partnerID=8YFLogxK
U2 - 10.1016/S0378-7753(01)00861-8
DO - 10.1016/S0378-7753(01)00861-8
M3 - Article
AN - SCOPUS:0036132996
VL - 103
SP - 245
EP - 252
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 2
ER -