2.5 小结

本章发展了一个具有菲克定律形式的尘气模型(DGMFM)。DGMFM可以给出多组分气体在多孔介质中的每种物质流量的解析表达式,物质流量的解析表达式可以直接代入质量守恒方程计算物质的浓度分布。DGMFM的准确性通过系统改变影响SOFC阳极中质量输运的结构和操作参数进行了测试。所有测试结果一致证明,DGMFM可以高度准确地重复出DGM的预测结果。因此,DGMFM可以替代DGM分析多组分气体在多孔介质中的质量输运。

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