Performance of tubular Solid Oxide Fuel Cell at reduced temperature and cathode porosity

Sleiti, Ahmad K.

doi:10.1016/j.jpowsour.2010.03.044

Cited by 17 publications

(10 citation statements)

References 17 publications

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“…Researchers believe that the ionic conductivity of cathodes will improve with this porosity. Several researchers have suggested that the porosity of the cathode should be in the range of 20 % to 40 % to enhance its electrochemical performance [18][19][20][21]. In the current study, the optimum sintering temperature for the LSCF-SDCC cathode composite may be selected from 550, 600, and 650°C.…”

Section: Effect Of Sintering Temperature (T S )mentioning

confidence: 99%

INFLUENCE OF SINTERING TEMPERATURE ON THE POLARIZATION RESISTANCE OF LaO20.6SrO20.4CoO20.2FeO20.8O3-δ - SDC CARBONATE COMPOSITE CATHODE

Baharuddin

Muchtar²,

Somalu³

et al. 2016

Ceramics - Silikaty

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Section: Effect Of Sintering Temperature (T S )mentioning

confidence: 99%

INFLUENCE OF SINTERING TEMPERATURE ON THE POLARIZATION RESISTANCE OF LaO20.6SrO20.4CoO20.2FeO20.8O3-δ - SDC CARBONATE COMPOSITE CATHODE

Baharuddin

Muchtar²,

Somalu³

et al. 2016

Ceramics - Silikaty

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“…For more information regarding the solution procedure and equations, the reader is pointed to documentation from the CFD code provider [35] or from excellent summaries produced by Sleiti [31] or Christman and Jensen [37].…”

Section: Conservation Of Energymentioning

confidence: 99%

Experimental and Numerical Study of Various MT-SOFC Flow Manifold Techniques: Single MT-SOFC Analysis

Lawlor

Klein²,

Hochenauer³

et al. 2013

Journal of Fuel Cell Science and Technology

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Standard anode supported micro tubular-solid oxide fuel cell (MT-SOFC) stacks may provide the oxidant, in relation to the fuel, in three different manifold regimes. Firstly, "co-flow" involves oxidant outside the MT-SOFC flowing co-linearly in relation to the fuel inside. Secondly, "counter flow" involves oxidant outside the MT-SOFC flowing counter-linearly in relation to the fuel inside the MT-SOFC. Finally, "cross-flow" involves the oxidant outside the MT-SOFC flowing perpendicular to the fuel flow inside the MT-SOFC. In order to examine the effect of manifold technique on MT-SOFC performance, a combination of numerical simulation and experimental measurements was performed. Furthermore, the cathode current tap location, in relation to the fuel flow, was also studied. It was found that the oxidant manifold and the location of the cathode current collection point on the MT-SOFC tested and modeled had negligible effect on the MT-SOFC's electrical and thermal performance. In this study, a single MT-SOFC was studied in order to establish the measurement technique and numerical simulation implementation as a prerequisite before further test involving a 7 cell MT-SOFC stack.

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“…Sleiti [36] provided an excellent general break down of the CFD software fuel cell module operation. The activation over-potential at the anode ( act,a ) and the cathode ( act,c ) can be determined based on a version of the Butler-Volmer equation, Equation (8), and the rate of species production and reduction by electrochemical reaction is described by Equation (9):…”

Section: Theory Behind the Numerical Calcula-tionmentioning

confidence: 99%

“…For more information regarding the solution procedure and equations the reader is pointed to documentation from the CFD code provider [40] or from excelent summaries by produced by Sleiti [36] or Christman and Jensen [41].…”

Section: Theory Behind the Numerical Calcula-tionmentioning

confidence: 99%

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Scrutiny of MT-SOFC Stack Manifolding Design Using CFD

Lawlor¹,

Hochenauer

Mariani³

et al. 2012

TOFCJ

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Abstract:In this work we investigated the use of Computational Fluid Dynamics (CFD) in order to describe the behaviour of a single Micro Tubular Solid Oxide Fuel Cell (MT-SOFC) and a bundle thereof. It is the first step before building a rather necessarily complicated experimental apparatus in order to compare the predictions with experimental measurement. The first goal of this study was to test the suitability of commercially available CFD & SOFC modelling software, with some modified features. The second goal was to predict the effects of various fuel and oxidant manifolding techniques regarding temperature, species and current density distributions. A result of this paper showed that CFD is a very useful tool, when a SOFC module is incorporated for MT-SOFC stack modelling. A second result showed that the oxidant flow regime was much more important than the fuel regime in order to manipulate a single MT-SOFC's temperature profile. The cases investigated had a radiation model included and the differences in temperature profiles, when radiation was included and neglected, especially for MT-SOFCs with view factors to the reactor housing, was shown to be important. The CFD predictions clearly showed the benefits and advantages associated with the different forms of fuel and oxidant manifoldings. A future experimental analysis is currently being designed.

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Performance of tubular Solid Oxide Fuel Cell at reduced temperature and cathode porosity

Cited by 17 publications

References 17 publications

INFLUENCE OF SINTERING TEMPERATURE ON THE POLARIZATION RESISTANCE OF LaO20.6SrO20.4CoO20.2FeO20.8O3-δ - SDC CARBONATE COMPOSITE CATHODE

INFLUENCE OF SINTERING TEMPERATURE ON THE POLARIZATION RESISTANCE OF LaO20.6SrO20.4CoO20.2FeO20.8O3-δ - SDC CARBONATE COMPOSITE CATHODE

Experimental and Numerical Study of Various MT-SOFC Flow Manifold Techniques: Single MT-SOFC Analysis

Scrutiny of MT-SOFC Stack Manifolding Design Using CFD

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