Abstract
The present paper reports the experimental study on the dynamic behavior of a solid oxide fuel cell (SOFC). The cell stack consists of planar type cells with standard power output 300W. A Major subject of the present study is characterization of the transient response to the electric current change, assuming load-following operation. The present studies particularly focus on fuel provision control to the load change. Optimized fuel provision improves power generation efficiency. However, the capability of SOFC must be restricted by a few operative parameters. Fuel utilization factor, which is defined as the ratio of the consumed fuel to the supplied fuel is adopted for a reference in the control scheme. The fuel flow rate was regulated to keep the fuel utilization at 50%, 60% and 70% during the current ramping. Lower voltage was observed with the higher fuel utilization, but achieved efficiency was higher. The appropriate mass flow control is required not to violate the voltage transient behavior. Appropriate fuel flow manipulation can contribute to moderate the overshoot on the voltage that may appear to the current change. The overshoot on the voltage response resulted from the gradual temperature behavior in the SOFC stack module.
| Original language | English |
|---|---|
| Article number | 012162 |
| Journal | Journal of Physics: Conference Series |
| Volume | 395 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2012 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Experimental study on the 300W class planar type solid oxide fuel cell stack : Investigation for appropriate fuel provision control and the transient capability of the cell performance. / Komatsu, Y.; Brus, G.; Kimijima, Shinji; Szmyd, J. S.
In: Journal of Physics: Conference Series, Vol. 395, No. 1, 012162, 2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental study on the 300W class planar type solid oxide fuel cell stack
T2 - Investigation for appropriate fuel provision control and the transient capability of the cell performance
AU - Komatsu, Y.
AU - Brus, G.
AU - Kimijima, Shinji
AU - Szmyd, J. S.
PY - 2012
Y1 - 2012
N2 - The present paper reports the experimental study on the dynamic behavior of a solid oxide fuel cell (SOFC). The cell stack consists of planar type cells with standard power output 300W. A Major subject of the present study is characterization of the transient response to the electric current change, assuming load-following operation. The present studies particularly focus on fuel provision control to the load change. Optimized fuel provision improves power generation efficiency. However, the capability of SOFC must be restricted by a few operative parameters. Fuel utilization factor, which is defined as the ratio of the consumed fuel to the supplied fuel is adopted for a reference in the control scheme. The fuel flow rate was regulated to keep the fuel utilization at 50%, 60% and 70% during the current ramping. Lower voltage was observed with the higher fuel utilization, but achieved efficiency was higher. The appropriate mass flow control is required not to violate the voltage transient behavior. Appropriate fuel flow manipulation can contribute to moderate the overshoot on the voltage that may appear to the current change. The overshoot on the voltage response resulted from the gradual temperature behavior in the SOFC stack module.
AB - The present paper reports the experimental study on the dynamic behavior of a solid oxide fuel cell (SOFC). The cell stack consists of planar type cells with standard power output 300W. A Major subject of the present study is characterization of the transient response to the electric current change, assuming load-following operation. The present studies particularly focus on fuel provision control to the load change. Optimized fuel provision improves power generation efficiency. However, the capability of SOFC must be restricted by a few operative parameters. Fuel utilization factor, which is defined as the ratio of the consumed fuel to the supplied fuel is adopted for a reference in the control scheme. The fuel flow rate was regulated to keep the fuel utilization at 50%, 60% and 70% during the current ramping. Lower voltage was observed with the higher fuel utilization, but achieved efficiency was higher. The appropriate mass flow control is required not to violate the voltage transient behavior. Appropriate fuel flow manipulation can contribute to moderate the overshoot on the voltage that may appear to the current change. The overshoot on the voltage response resulted from the gradual temperature behavior in the SOFC stack module.
UR - http://www.scopus.com/inward/record.url?scp=84875047828&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875047828&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/395/1/012162
DO - 10.1088/1742-6596/395/1/012162
M3 - Article
AN - SCOPUS:84875047828
VL - 395
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012162
ER -