Modelling of the radiative properties of an opaque porous ceramic layer |
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Authors: | Benoit Rousseau Hector Gomart Domingos De Sousa Meneses Patrick Echegut Mathilde Rieu Romain Dugas Pascal Lenormand Florence Ansart |
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Affiliation: | 1.CEMHTI UPR 3079 CNRS,Orléans,France;2.Université d’Orléans, [Polytech Orléans],Orléans,France;3.Institut Carnot CIRIMAT -UMR 5085,Toulouse,France |
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Abstract: | Solid Oxide Fuel Cells (SOFCs) operate at temperatures above 1,100 K where radiation effects can be significant. Therefore, an accurate thermal model of an SOFC requires the inclusion of the contribution of thermal radiation. This implies that the thermal radiative properties of the oxide ceramics used in the design of SOFCs must be known. However, little information can be found in the literature concerning their operating temperatures. On the other hand, several types of ceramics with different chemical compositions and microstructures for designing efficient cells are now being tested. This is a situation where the use of a numerical tool making possible the prediction of the thermal radiative properties of SOFC materials, whatever their chemical composition and microstructure are, may be a decisive help. Using this method, first attempts to predict the radiative properties of a lanthanum nickelate porous layer deposited onto an yttria stabilized zirconium substrate can be reported. |
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