Abstract
We have investigated the behavior of an operating solid oxide fuel cell (SOFC) with supplying a simulated syngas to develop diagnosis method of the SOFC for marine power applications fueled with liquefied natural gas (LNG). We analyze the characteristics of a syngas-fueled intermediate temperature microtubular SOFC at 500 ∘C for accelerated deterioration by carbon deposition as a model case by electrochemical impedance spectroscopy (EIS) to in-situ find parameters useful for the real-time diagnosis. EIS analyses are performed by complex nonlinear least squares (CNLS) curve fitting to measured impedance spectra with an equivalent electric circuit model consisting of several resistances and capacitances attributed to the anode and cathode processes as well as Ohmic resistance of the cell. The characteristic changes of those circuit parameters by internal reforming and anode degradation are extracted, showing that they can be used for the real-time diagnosis of operating SOFCs.
| Original language | English |
|---|---|
| Pages (from-to) | 2551-2558 |
| Number of pages | 8 |
| Journal | Heat and Mass Transfer/Waerme- und Stoffuebertragung |
| Volume | 54 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 1 2018 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Fluid Flow and Transfer Processes
Cite this
Real-time electrochemical impedance spectroscopy diagnosis of the solid oxide fuel cell for marine power applications. / Nakajima, Hironori; Kitahara, Tatsumi.
In: Heat and Mass Transfer/Waerme- und Stoffuebertragung, Vol. 54, No. 8, 01.08.2018, p. 2551-2558.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Real-time electrochemical impedance spectroscopy diagnosis of the solid oxide fuel cell for marine power applications
AU - Nakajima, Hironori
AU - Kitahara, Tatsumi
PY - 2018/8/1
Y1 - 2018/8/1
N2 - We have investigated the behavior of an operating solid oxide fuel cell (SOFC) with supplying a simulated syngas to develop diagnosis method of the SOFC for marine power applications fueled with liquefied natural gas (LNG). We analyze the characteristics of a syngas-fueled intermediate temperature microtubular SOFC at 500 ∘C for accelerated deterioration by carbon deposition as a model case by electrochemical impedance spectroscopy (EIS) to in-situ find parameters useful for the real-time diagnosis. EIS analyses are performed by complex nonlinear least squares (CNLS) curve fitting to measured impedance spectra with an equivalent electric circuit model consisting of several resistances and capacitances attributed to the anode and cathode processes as well as Ohmic resistance of the cell. The characteristic changes of those circuit parameters by internal reforming and anode degradation are extracted, showing that they can be used for the real-time diagnosis of operating SOFCs.
AB - We have investigated the behavior of an operating solid oxide fuel cell (SOFC) with supplying a simulated syngas to develop diagnosis method of the SOFC for marine power applications fueled with liquefied natural gas (LNG). We analyze the characteristics of a syngas-fueled intermediate temperature microtubular SOFC at 500 ∘C for accelerated deterioration by carbon deposition as a model case by electrochemical impedance spectroscopy (EIS) to in-situ find parameters useful for the real-time diagnosis. EIS analyses are performed by complex nonlinear least squares (CNLS) curve fitting to measured impedance spectra with an equivalent electric circuit model consisting of several resistances and capacitances attributed to the anode and cathode processes as well as Ohmic resistance of the cell. The characteristic changes of those circuit parameters by internal reforming and anode degradation are extracted, showing that they can be used for the real-time diagnosis of operating SOFCs.
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U2 - 10.1007/s00231-017-2215-0
DO - 10.1007/s00231-017-2215-0
M3 - Article
VL - 54
SP - 2551
EP - 2558
JO - Heat and Mass Transfer
JF - Heat and Mass Transfer
SN - 0947-7411
IS - 8
ER -