CFD analysis of cooling effects in H2-fed solid oxide fuel cells

García-Camprubí, María and Jasak, Hrvoje and Fueyo, Norberto A. (2011) CFD analysis of cooling effects in H2-fed solid oxide fuel cells. = CFD analysis of cooling effects in H2-fed solid oxide fuel cells. Journal of Power Sources, 196 (17). pp. 7290-7301. ISSN 0378-7753. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2011). .

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A model is presented that describes the main physical phenomena affecting in the performance of a Solid-Oxide Fuel Cell (SOFC). The implementation of the model uses an in-house algorithm in a computational fluid-dynamics (CFD) framework that may be used to optimize the SOFC operational parameters. The physical phenomena considered in the model are: (i) mass conservation: multicomponent and multimodal mass transfer in gas channels and electrodes (convection, ordinary diffusion, Knudsen diffusion); (ii) momentum conservation in the gas channels and electrodes; (iii) energy conservation: coupled heat transfer across the whole cell (gas channels, electrodes and electrolyte); (iv) electrochemistry: half-reactions are considered to take place at the electrode-electrolyte interfaces, and activation losses are computed using the general version of the Butler-Volmer equation. The main features of this CFD tool are: (i) it allows the prediction of the characteristic (I-V) curve of an H2-fed cell; (ii) it is suitable for both tubular and planar cells; (iii) it has been implemented using OpenFOAM-1.5-dev, an open-source CFD-platform based on the Finite Volume Method.The numerical results are validated with published experimental I-V curves for a hydrogen-fed anode-supported micro-tubular SOFC, and a numerical analysis of the influence of different operation conditions on the temperature distribution is performed to procure a better understanding of the heat management of the cell. © 2011 Elsevier B.V. All rights reserved.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Anode-supported; Butler-Volmer equation; CFD analysis; CFD modeling; Cooling effects; Coupled heat transfer; Dusty-gas; Electrode-electrolyte interfaces; Finite volume; Gas channels; General version; Half-reactions; Heat management; I - V curve; In-house algorithms; Knudsen diffusion; Mass conservation; Micro-tubular; Momentum conservations; Multi-modal; Multicomponents; Numerical results; Open-source; OpenFOAM; Operation conditions; Operational parameters; Physical phenomena; Planar cells; Solid oxide; Whole cell; Computational fluid dynamics; Electrodes; Electrolytes; Finite volume method; Heat transfer; Models; Numerical analysis; Solid oxide fuel cells (SOFC); Phase interfaces
Divisions: 500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2011)
Date Deposited: 17 Apr 2015 09:40
Last Modified: 30 Mar 2017 15:37

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