In Situ Measured Spatial Temperature Variations for Improving Reliability of Numerical SOFC Tools
In Situ Measured Spatial Temperature Variations for Improving Reliability of Numerical SOFC Tools
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现场测量空间温度变化以提高数值 SOFC 工具的可靠性
DOI：
10.1149/07801.2191ecst
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Tatsumi Kitahara
中科院分区：
文献类型：
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作者：
Ozgur Aydin;Hironori Nakajima;Tatsumi Kitahara
为了发展固体氧化物燃料电池技术，多物理场数值计算工具被广泛使用，因此数值计算工具的可靠性是非常重要的。虽然传统的电流/电压曲线被认为是基本的验证方法，它本身不能保证多物理场SOFC模型的可靠性。本文提出温度验证作为一种补充验证方法，特别是为了确保数值工具中能量平衡的准确性。在这项研究中，温度验证的可行性进行了调查的2维微管SOFC模型。利用该模型对SOFC的特性进行了纵向计算，并采用沿着电池分段的方法对SOFC的特性进行了现场测量。通过比较数值和实验数据，验证方法的可靠性进行了评估，即，改进的温度验证。通过对相关电压损耗的分析，说明了温度验证对计算可靠性的作用。
For developing SOFC technology, multiphysics numerical tools are widely employed; reliability of numerical tools is hence quite important. Although the conventional current/voltage curve is considered as the basic validation method, it cannot itself assure the reliability of a mutliphysics SOFC model. Temperature-validation is herein proposed as a supplementary validation method for particularly ensuring the accuracy of the energy balance in the numerical tools. In this study, feasibility of the temperaturevalidation is investigated on a 2-dimensional microtubular-SOFC model. The characteristic properties of the SOFC were longitudinally computed by the model as well as they were in situ measured by the segmentation method along the cell. By comparing the numerical and experimental data, reliability of the validation methods are evaluated, ie, improvement by the temperature validation is shown. Furthermore, the role of the temperature validation on the reliability of the computation was explained via elaborating the related voltage-losses.