| Publication type: | Conference paper |
| Type of review: | Not specified |
| Title: | Numerical simulation of reactive transport phenomena in the hexis SOFC-system |
| Authors: | Safa, Yasser Hocker, Thomas |
| DOI: | 10.1149/1.3205651 |
| Proceedings: | Solid Oxide Fuel Cells 11 (SOFC-XI) |
| Editors of the parent work: | Singhal, S. C. Yokokawa, H. |
| Volume(Issue): | 25 |
| Page(s): | 1221 |
| Pages to: | 1230 |
| Conference details: | 11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI), Vienna, Austria, 4-9 October 2009 |
| Issue Date: | 2009 |
| Series: | ECS Transactions |
| Series volume: | 25, 2 |
| Publisher / Ed. Institution: | Pennington |
| ISBN: | 978-1-56677-739-1 |
| ISSN: | 1938-5862 |
| Language: | English |
| Subjects: | Reactive flow; Chagre transport; Compressible flow; Slip velocity |
| Subject (DDC): | 530: Physics 621.3: Electrical, communications, control engineering |
| Abstract: | An advanced computational reactive flow code has been implemented into Mathematica® to analyze (electro-)chemical conversions and various transport phenomena in the Hexis® SOFC-stack. The finite element approximation is applied for the space discretization of the continuity equations. The convection dominant cases are stabilized by the SUPG (Streamline Upwind Petrov Galerkin) method. The fluid flow in the interconnect channels is derived analytically with accurate representation of the slip velocity on the porous electrode surfaces. The mathematical system is linearized by means of a pseudo-time step discretization via a semi-implicit scheme. This stable iterative procedure is applied to an evolutionary problem and it converges unconditionally to the steady solution. Due to the low aspect ratio of the thickness to the cross-section of the cell, a one-dimensional model of the cell is coupled with the flow inside the gas channels. This approach reduces the computing time by retaining the main geometric details. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/1655 |
| Fulltext version: | Published version |
| License (according to publishing contract): | Licence according to publishing contract |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Appears in collections: | Publikationen School of Engineering |
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Safa, Y., & Hocker, T. (2009). Numerical simulation of reactive transport phenomena in the hexis SOFC-system [Conference paper]. In S. C. Singhal & H. Yokokawa (Eds.), Solid Oxide Fuel Cells 11 (SOFC-XI) (Vol. 25, pp. 1221–1230). https://doi.org/10.1149/1.3205651
Safa, Y. and Hocker, T. (2009) ‘Numerical simulation of reactive transport phenomena in the hexis SOFC-system’, in S.C. Singhal and H. Yokokawa (eds) Solid Oxide Fuel Cells 11 (SOFC-XI). Pennington, pp. 1221–1230. Available at: https://doi.org/10.1149/1.3205651.
Y. Safa and T. Hocker, “Numerical simulation of reactive transport phenomena in the hexis SOFC-system,” in Solid Oxide Fuel Cells 11 (SOFC-XI), 2009, vol. 25, pp. 1221–1230. doi: 10.1149/1.3205651.
SAFA, Yasser und Thomas HOCKER, 2009. Numerical simulation of reactive transport phenomena in the hexis SOFC-system. In: S. C. SINGHAL und H. YOKOKAWA (Hrsg.), Solid Oxide Fuel Cells 11 (SOFC-XI). Conference paper. Pennington. 2009. S. 1221–1230. ISBN 978-1-56677-739-1
Safa, Yasser, and Thomas Hocker. 2009. “Numerical Simulation of Reactive Transport Phenomena in the Hexis SOFC-System.” Conference paper. In Solid Oxide Fuel Cells 11 (SOFC-XI), edited by S. C. Singhal and H. Yokokawa, 25:1221–30. Pennington. https://doi.org/10.1149/1.3205651.
Safa, Yasser, and Thomas Hocker. “Numerical Simulation of Reactive Transport Phenomena in the Hexis SOFC-System.” Solid Oxide Fuel Cells 11 (SOFC-XI), edited by S. C. Singhal and H. Yokokawa, vol. 25, 2009, pp. 1221–30, https://doi.org/10.1149/1.3205651.
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