Parameter estimation for a reconstructed SOFC mixed-conducting LSCF-cathode

• Verfasst von: Carraro, Thomas [VerfasserIn]
• Verfasst von: Joos, Jochen [VerfasserIn]
• Titel: Parameter estimation for a reconstructed SOFC mixed-conducting LSCF-cathode
• Verf.angabe: Thomas Carraro, Jochen Joos
• Jahr: 2013
• Jahr des Originals: 2012
• Umfang: 19 S.
• Teil: year:2013
• Teil: pages:267-285
• Teil: extent:19
• Fussnoten: First online: 03 August 2012 ; Gesehen am 12.12.2017
• Titel Quelle: Enthalten in: Model Based Parameter Estimation
• Ort Quelle: Berlin, Heidelberg : Springer, 2013
• Jahr Quelle: 2013
• Band/Heft Quelle: (2013), Seite 267-285
• ISBN Quelle: 978-3-642-30367-8
• ISBN Quelle: 1-299-33664-7
• ISBN Quelle: 978-1-299-33664-3
• DOI: doi:10.1007/978-3-642-30367-8_13
• Datenträger: Online-Ressource
• Sprache: eng
• Bibliogr. Hinweis: Erscheint auch als : Druck-Ausgabe: Carraro, Thomas: Parameter estimation for a reconstructed SOFC mixed-conducting LSCF-cathode. - 2013
• K10plus-PPN: 1566259576

Abstract

The performance of a solid oxide fuel cell (SOFC) is strongly affected by electrode polarization losses, which are related to the composition and the microstructure of the porous materials. A model that can decouple the effects associated with the geometrical arrangement, shape, and size of the particles together with material distribution on one side and the material properties on the other can give a relevant improvement in the understanding of the underlying processes. A porous mixed ionic-electronic conducting (MIEC) cathode was reconstructed by focused ion beam tomography. The detailed geometry of the microstructure is used for 3D calculations of the electrochemical processes in the electrode and to calibrate a well-established reduced model obtained by averaging. We perform a model-based estimation of the parameters describing the main processes and estimate their confidence regions using the calibrated reduced model.