The effect of applied control strategy on the current-voltage correlation of a solid oxide fuel cell stack during dynamic operation

Janusz S. Szmyd, Yosuke Komatsu, Grzegorz Brus, Francesco Ghigliazza, Shinji Kimijima, Anna ͆ciązko

研究成果: Article

4 引用 (Scopus)

抄録

This paper discusses the transient characteristics of the planar type SOFC cell stack, of which the standard output is 300 W. The transient response of the voltage to the manipulation of an electric current was investigated. The effects of the response and of the operating condition determined by the operating temperature of the stack were studied by mapping a current-voltage (I-V) correlation. The current-based fuel control (CBFC) was adopted for keeping the fuel utilization factor at constant while the value of the electric current was ramped at the constant rate. The present experimental study shows that the transient characteristics of the cell voltage are determined by primarily the operating temperature caused by the manipulation of the current. Particularly, the slope of the I-V curve and the overshoot found on the voltage was remarkably influenced by the operating temperature. The different values of the fuel utilization factor influence the height of the settled voltages. The CBFC has significance in determining the slope of the I-V characteristic, but the different values of the fuel utilization factor does not affect the slope as the operating tem-perature does. The CBFC essentially does not alter the amplitude of the overshoot on the voltage response, since this is dominated by the operating temperature and its change is caused by manipulating the current.

元の言語English
ページ(範囲)129-143
ページ数15
ジャーナルArchives of Thermodynamics
35
発行部数3
出版物ステータスPublished - 2014 3 1

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solid oxide fuel cells
fuel control
operating temperature
electric potential
slopes
electric current
manipulators
transient response
cells
output
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

The effect of applied control strategy on the current-voltage correlation of a solid oxide fuel cell stack during dynamic operation. / Szmyd, Janusz S.; Komatsu, Yosuke; Brus, Grzegorz; Ghigliazza, Francesco; Kimijima, Shinji; ͆ciązko, Anna.

:: Archives of Thermodynamics, 巻 35, 番号 3, 01.03.2014, p. 129-143.

研究成果: Article

Szmyd, Janusz S. ; Komatsu, Yosuke ; Brus, Grzegorz ; Ghigliazza, Francesco ; Kimijima, Shinji ; ͆ciązko, Anna. / The effect of applied control strategy on the current-voltage correlation of a solid oxide fuel cell stack during dynamic operation. :: Archives of Thermodynamics. 2014 ; 巻 35, 番号 3. pp. 129-143.
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