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

Y. Komatsu, G. Brus, S. Kimijima, J. S. Szmyd

研究成果: Conference article査読

9 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号012162
ジャーナルJournal of Physics: Conference Series
395
1
DOI
出版ステータスPublished - 2012
イベント6th European Thermal Sciences Conference, Eurotherm 2012 - Poitiers, France
継続期間: 2012 9 42012 9 7

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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