Szczegóły publikacji
Opis bibliograficzny
A three-dimensional numerical analysis of charge transport phenomena in a solid oxide fuel cell anode – the impact of a long-term operation / Tomasz PROKOP, Katarzyna BERENT, Marcin MOŹDZIERZ, Janusz SZMYD, Grzegorz BRUS // W: ECOS 2019 [Dokument elektroniczny] : proceedings of the 32nd international conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Wrocław, Poland, 23–28 June 2019 / ed. by Wojciech Stanek, [et al.]. — Wersja do Windows. — Dane tekstowe. — [Gliwice] : Institute of Thermal Technology. Silesian University of Technology, 2019. — Dysk Flash. — e-ISBN: 978-83-61506-51-5. — S. 2961–2970. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 2968–2970, Abstr. — W publikacji błędnie podano nazwisko autora: Marcin Modzierz
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 122755 |
|---|---|
| Data dodania do BaDAP | 2019-07-18 |
| Rok publikacji | 2019 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Politechnika Śląska |
Abstract
In this research, the impact of aging on the performance of a Solid Oxide Fuel Cell anode is investigated by means of numerical simulation and mathematical modeling. The model is used to tie the experimentally observed performance change in an SOFC stack to the evolution of its microstructure, investigated using the FIB-SEM technique. A three dimensional, numerical model with non-continuous computational domain is applied to the complex, multiphase microstructure of the porous ceramic-metal electrode. Butler-Volmer equation is used to compute the charge transfer at reaction sites, which are modeled as distinct locally distributed features of the microstructure. The model includes empirical relationships for electric and ionic conductivities. Local pore diameters are computed and the gas diffusion is modeled to account for binary and Knudsenian diffusion phenomena using the extended Stefan-Maxwell Model. FIB-SEM electron nanotomography data is used to construct a 3D digital reconstruction, which consists a base for a non-continuous computational domain. The results for potential fields and current distribution are compared to a one dimensional, semi-analytical solution in order to assess its applicability in the SOFC research © ECOS 2019 - Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. All rights reserved.
