引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 70次   下载 45 本文二维码信息
码上扫一扫!
分享到: 微信 更多
基于多物理场模拟的阳极支撑微管燃料电池的结构优化设计
施红玉,朱江,林子敬*
作者单位E-mail
施红玉 中国科学技术大学物理系, 合肥微尺度物质科学国家实验室(筹), 中国科学院强耦合物质重点实验室, 合肥 230026  
朱江 中国科学技术大学物理系, 合肥微尺度物质科学国家实验室(筹), 中国科学院强耦合物质重点实验室, 合肥 230026  
林子敬* 中国科学技术大学物理系, 合肥微尺度物质科学国家实验室(筹), 中国科学院强耦合物质重点实验室, 合肥 230026 zjlin@ustc.edu.cn 
摘要:
关键词:  
DOI:10.1063/1674-0068/30/cjcp1704071
分类号:
基金项目:This work was supported by the National Natural Science Foundation of China (No.11374272 and No.11574284) and the Collaborative Innovation Center of Suzhou Nano Science and Technology.
Geometric Design of Anode-Supported Micro-Tubular Solid Oxide Fuel Cells by Multiphysics Simulations
Hong-yu Shi,Jiang Zhu,Zi-jing Lin*
Abstract:
High volumetric power density (VPD) is the basis for the commercial success of micro-tubular solid oxide fuel cells (mtSOFCs). To find maximal VPD (MVPD) for anode-supported mtSOFC (as-mtSOFC), the effects of geometric parameters on VPD are analyzed and the anode thickness, tan, and the cathode length, lca, are identified as the key design parameters. Thermo-fluid electrochemical models were built to examine the dependence of the electrical output on the cell parameters. The multiphysics model is validated by reproducing the experimental I-V curves with no adjustable parameters. The optimal lca and the corresponding MVPDs are then determined by the multiphysics model for 20 combinations of rin, the inner tube radius, and tan. And all these optimization are made at 1073.15 K. The results show that:(i) significant performance improvement may be achieved by geometry optimization, (ii) the seemingly high MVPD of 11 and 14 W/cm3 can be easily realized for as-mtSOFC with single-and double-terminal anode current collection, respectively. Moreover, the variation of the area specific power density with lca2(2 mm, 40 mm) is determined for three representative (rin, tan) combinations. Besides, it is demonstrated that the current output of mtSOFC with proper geometric parameters is comparable to that of planar SOFC.
Key words:  I-V relations  Thermal fluid electrochemistry model  Parametric optimization  Volumetric power density  Anode thickness