Generalized model of planar SOFC repeat element for design optimization
| Autor: | J. Van herle, François Maréchal, Daniel Favrat, Diego Larrain |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Engineering
Renewable Energy Sustainability and the Environment business.industry Estimation theory Flow (psychology) Energy Engineering and Power Technology Computational fluid dynamics Planar Stack (abstract data type) Position (vector) Control theory Validation Solid oxide fuel cell SOFC Sensitivity (control systems) Electrical and Electronic Engineering Physical and Theoretical Chemistry business Simulation Model Repeat element |
| Zdroj: | Journal of Power Sources. 131:304-312 |
| ISSN: | 0378-7753 |
| Popis: | A model for planar solid oxide fuel cell repeat elements and stacks has been developed. Distribution of concentrations, reaction rates and temperatures (both gases and solids) are computed as well as overall performance results. Specific experiments provide inputs to the model by a parameter estimation method. The modeling approach developed allows to compare several configurations. As the number of design parameters is large (from cell size, component thicknesses to gas flow configuration), the model is designed to change easily these parameters so as to explore as many cases as possible. This is particularly true for the flow configuration (inlet position, outlets) for which several options are considered. This model assists in choosing a configuration and allows to perform sensitivity studies in an efficient way (without having to produce a new mesh such as for CFD tools) or to be combined with an optimization tool. A first validation with experimental results, performed on a particular stack design, is presented. Issues of model accuracy and sensitivity to uncertain inputs are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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