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首页> 外文期刊>International Journal of Heat and Mass Transfer >Three-dimensional simulation of chemically reacting gas flows in the porous support structure of an integrated-planar solid oxide fuel cell
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Three-dimensional simulation of chemically reacting gas flows in the porous support structure of an integrated-planar solid oxide fuel cell

机译：集成平面固体氧化物燃料电池多孔支撑结构中化学反应气流的三维模拟

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摘要

The behaviour of an integrated-planar solid oxide fuel cell (IP-SOFC) strongly depends on the reactive diffusive flows/'within its porous support structure. Fuel is transported through the porous structure to the anodes of the electrochemical cells and the structure may be impregnated with the required catalysts for the steam reforming of methane. It is important to be able to calculate the distribution of gas properties within the porous structure in order to predict the performance of each cell and to determine the amount of internal reforming that takes place. This paper describes a three-dimensional numerical calculation method which has been developed to solve the governing equations in the porous structure. The calculation method includes the interaction between the flow in the porous medium and that in the adjacent fuel supply channel. The results highlight the importance of the kinetics of the reforming reaction and the thermal boundary conditions, both of which have a significant effect on the flow field within the porous structure.
机译：集成平面固体氧化物燃料电池（IP-SOFC）的行为在很大程度上取决于其多孔支撑结构内的反应性扩散流。燃料通过多孔结构传输到电化学电池的阳极，并且该结构可以用甲烷蒸汽重整所需的催化剂浸渍。重要的是能够计算出多孔结构内的气体特性分布，以便预测每个电池的性能并确定发生的内部重整的数量。本文介绍了一种三维数值计算方法，该方法已被开发用于求解多孔结构中的控制方程。计算方法包括多孔介质中的流动与相邻燃料供应通道中的流动之间的相互作用。结果突出了重整反应动力学和热边界条件的重要性，这两者都对多孔结构内的流场具有重大影响。

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