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, Suk Woo
AU - Lim, Tae Hoon
AU - Hong, Seong Ahn
N1 - Funding Information:
This work was supported by the New & Renewable Energy Program. The authors acknowledge the financial support from Ministry of Trade, Industry and Energy through R&D Management Center for Energy and Resources and Korea Electro Power Research Institute (KEPRI).
Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
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
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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 -