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Modeling Power Production in a Tubular Carbon Fuel Cell

机译：管状碳燃料电池中的发电量建模

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摘要

Carbon fuel cells (CFCs) offer promising technological opportunities for efficient and clean conversion of carbonaceous fuel (coal, biomass, waste, etc.) into electricity. In this study, we report the results of a finite-element model used to predict the performance of a solid oxide-based tubular air carbon fuel cell (ACFC). The comprehensive model couples mass and energy transport with electrochemistry and ion transport, and uses experimentally derived parameters to simulate anode and cathode kinetics as well as carbon bed chemistry. The model is used to map out power density and cell efficiency as a function of bed height, tube spacing and cell voltage. The model results can be used to aid design and operational decisions. As expected, calculations of ACFC performance indicate the typical tradeoff between power density and cell efficiency under both varying geometry as well as varying cell voltage. Calculated results demonstrate that a power density of 170 mW/cm~2 can be attained with a cell efficiency in excess of 50%.
机译：碳燃料电池（CFC）为将含碳燃料（煤，生物质，废物等）有效，清洁地转化为电能提供了广阔的技术机遇。在这项研究中，我们报告了有限元模型的结果，该模型用于预测基于固体氧化物的管状空气碳燃料电池（ACFC）的性能。该综合模型将质量和能量传输与电化学和离子传输相结合，并使用实验得出的参数来模拟阳极和阴极动力学以及碳床化学。该模型用于根据床高，管间距和电池电压来绘制功率密度和电池效率。模型结果可用于辅助设计和操作决策。不出所料，ACFC性能的计算表明在变化的几何形状以及变化的电池电压下，功率密度和电池效率之间的典型权衡。计算结果表明，电池效率超过50％时，可以获得170 mW / cm〜2的功率密度。

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  • 会议地点 Orlando FL(US)
  • 作者

    D. U. Johnson; R. E. Mitchell; T. M. Guer;

  • 作者单位

    Department of Mechanical Engineering, Stanford University;

    Department of Mechanical Engineering, Stanford University;

    Department of Materials Science and Engineering, Stanford University Stanford, CA 94305, USA;

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  • 正文语种 eng
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