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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >APPLICATION OF A NEW CFD ANALYSIS TOOL FOR SOFC TECHNOLOGY
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APPLICATION OF A NEW CFD ANALYSIS TOOL FOR SOFC TECHNOLOGY

机译：新型SOFC技术CFD分析工具的应用

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摘要

FLUENT~(TM), a commercial computational fluid dynamics (CFD) package, has been modified to include fuel cell electrochemistry. The model is being developed to account for three loss mechanisms present in fuel cells: ohmic overpotential, concentration overpotential, and electrochemical overpotential, each capable of temperature dependency. Because we envision this model to be applied to a wide range of geometries, the present model is also being developed to directly assess the electric potential field. This paper presents some preliminary results from the present model, and provides a summary status of our development. The main results from the present study arise from an analysis of a single monolithic SOFC geometry. Several cases were analyzed in order to generate a typical steady-state V-I curve for the cell, which summarizes its performance. Results on the detailed distribution of various conserved quantities are also presented. The preliminary results are encouraging, and show that for the geometry under study, simple scale-up relations may hold. Additionally, the newly developed tool no longer requires the modeler to manually input approximate current flow information, which will be seen to be of great benefit in fuel cell analysis.
机译：FLUENTTM是一种商业计算流体动力学（CFD）软件包，现已进行了修改，以包括燃料电池电化学。正在开发该模型以解决燃料电池中存在的三种损耗机制：欧姆过电势，浓度过电势和电化学过电势，每种均与温度有关。因为我们预想该模型将适用于各种几何形状，所以也正在开发本模型以直接评估电势场。本文介绍了当前模型的一些初步结果，并提供了我们的发展概况。本研究的主要结果来自对单个整体式SOFC几何形状的分析。分析了几种情况，以生成该电池的典型稳态V-I曲线，从而总结了其性能。还介绍了各种保守量的详细分布结果。初步结果令人鼓舞，并表明对于所研究的几何形状，简单的按比例缩放关系可能成立。此外，新开发的工具不再需要建模者手动输入近似的电流信息，这在燃料电池分析中将被视为具有极大的优势。

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