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首页> 外文会议>ASME international conference on fuel cell science, engineering, and technology >THREE-DIMENSIONAL CFD MODELING OF TUBULAR SOLID OXIDE FUEL CELLS WITH DIFFERENT FUELS
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THREE-DIMENSIONAL CFD MODELING OF TUBULAR SOLID OXIDE FUEL CELLS WITH DIFFERENT FUELS

机译：不同燃料管式固体氧化物燃料电池的三维CFD造型

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Solid oxide fuel cell (SOFC) technology has been of great interest over many years due to its flexibility in using different fuels including the fundamental fuel i.e. hydrogen, for its operation. Various computational and numerical models have been developed along with experimental work to evaluate the performance as well as to identify and overcome the problems faced in the development of SOFC's. In an attempt to achieve efficient operation with respect to design and combined thermal and electrochemical perspective, the main objective of the proposed study is to present a three-dimensional computational model which will serve as a framework for the analysis and optimization of SOFC's. A three-dimensional (3-D) model of a tubular SOFC is being developed to study the effect of temperature and electrolyte thickness variations on its performance. A commercial Computational Fluid Dynamics (CFD) software ANSYS-FLUENT was used for the development of the tubular model which incorporates an interactive 3-D electro-thermo-chemical fluid flow analysis. The particular model, after validation against experimental observations for selected benchmark cases, was demonstrated to be compatible for intermediate temperatures using hydrogen as the fuel. The performance of the model was analyzed by varying electrolyte thicknesses from 2-100 urn. The same model was further evaluated using different fuels such as CH_4 (methane) and CO (carbon monoxide), including the modeling of the reformation and water-gas shift reactions. The results were compared to other computationally less expensive, analytical and empirical models that could serve as basic models for future research on intermediate temperature SOFC's.
机译：由于其在包括基本燃料I.氢气的灵活性，固体氧化物燃料电池（SOFC）技术在多年内具有很大的兴趣。已经开发了各种计算和数值模型以及实验工作，以评估性能以及识别和克服SOFC开发中面临的问题。为了尝试实现关于设计和组合热和电化学视角的高效操作，所提出的研究的主要目的是呈现三维计算模型，该模型将作为SOFC分析和优化的框架。正在开发针对管状SOFC的三维（3-D）模型以研究温度和电解质厚度变化对其性能的影响。商业计算流体动力学（CFD）软件Ansys流放用于掺入交互式3-D电热 - 化学流体流动分析的管状模型的发展。在针对所选基准案件的实验观察验证之后，特定模型被证明与使用氢作为燃料的中间温度相容。通过从2-100瓮的电解质厚度进行分析模型的性能。使用不同的燃料（如CH_4（甲烷）和CO（一氧化碳）等不同的燃料进一步评估相同的模型，包括改性和水 - 气体变换反应的建模。将结果与其他计算不那么昂贵，分析和经验模型进行了比较，可以作为未来研究中间温度SOFC的基本模型。

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