| 管式SOFC热电特性的三维数值研究 |
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| 引用本文： | 张兄文,李军,李国君,丰镇平. 管式SOFC热电特性的三维数值研究[J]. 热能动力工程, 2006, 21(6): 628-631 |
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| 作者姓名： | 张兄文 李军 李国君 丰镇平 |
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| 作者单位： | 西安交通大学,能源与动力工程学院,陕西,西安,710049;西安交通大学,能源与动力工程学院,陕西,西安,710049;西安交通大学,能源与动力工程学院,陕西,西安,710049;西安交通大学,能源与动力工程学院,陕西,西安,710049 |
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| 基金项目： | 国家高技术研究发展计划(863计划);西安交通大学校科研和教改项目 |
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| 摘 要： | 1前言固体氧化物燃料电池(SOFC)作为一种高效、低排放的先进发电方式,日益受到了人们的关注。其几何结构主要有板式、管式和单一整体形式。管式SOFC具体结构紧凑、能承受较高的工作压力等特点,目前,美国西屋公司开发的管式SOFC已经有了示范性工程。SOFC的平均工作温度一般在800
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| 关 键 词： | 管式固体氧化物燃料电池 数值模拟 热电特性 |
| 文章编号： | 1001-2060（2006）06-0628-04 |
| 收稿时间： | 2006-03-31 |
| 修稿时间： | 2006-03-312006-07-13 |
A Three-dimensional Numerical Study of Thermoelectric Characteristics of Tubular Solid-oxide Fuel Cells |
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| ZHANG Xiong-wen,LI Jun,LI Guo-jun,et al. A Three-dimensional Numerical Study of Thermoelectric Characteristics of Tubular Solid-oxide Fuel Cells[J]. Journal of Engineering for Thermal Energy and Power, 2006, 21(6): 628-631 |
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| Authors: | ZHANG Xiong-wen LI Jun LI Guo-jun et al |
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| Abstract: | A method has been established for solving a full polarization electrochemical model for solid oxide fuel cells (SOFC) coupled with a potential equation and N-S one. A three-dimensional numerical simulation was conducted for the thermoelectric characteristics of the tubular SOFC. The calculated values of power generation characteristics of the cells obtained are in good agreement with the experimental ones. Meanwhile, the electric motive force distribution, electric current density and temperature distribution, electrochemical reaction-produced heat and Ohm heat distribution characteristics were also analyzed. The calculation results show that cathode Ohm polarization and activation polarization losses of the cells would account for 85% of the total losses,while chemical reaction-produced heat would account for about 92% and Ohm heat for 8% of the total heat generated. |
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| Keywords: | tubular solid oxide fuel cell numerical simulation thermoelectric characteristics |
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