| 引用本文: | 何勇灵,周岷峰.两级热电单偶输出性能的三维有限元分析[J].哈尔滨工业大学学报,2015,47(9):79.DOI:10.11918/j.issn.0367-6234.2015.09.015 |
| HE Yongling,ZHOU Minfeng.3-D finite element analysis on the output performance of two-stage thermoelectric couple[J].Journal of Harbin Institute of Technology,2015,47(9):79.DOI:10.11918/j.issn.0367-6234.2015.09.015 |
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| 摘要: |
| 针对以往研究中热电单偶一维传热模型的不足,提出了一种新型的两级热电单偶,对传统热电单偶和两级热电单偶分别建立三维有限元模型,确定模型的温度,对流换热和电势边界面,设定合理的边界条件,在ANSYS Workbench环境中进行仿真分析.应用控制变量法,研究不同输入变量对两种热电单偶各自输出性能的影响并进行比较分析.结果表明：负载值大小影响输出电压和电流,当负载值小于某个临界值时,两级热电单偶的输出电压和电流优于传统热电单偶,而最大输出功率始终大于传统热电单偶. |
| 关键词: 两级热电单偶 传统热电单偶 三维有限元模型 控制变量法 输出性能 仿真 |
| DOI：10.11918/j.issn.0367-6234.2015.09.015 |
| 分类号:TM913 |
| 基金项目: |
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| 3-D finite element analysis on the output performance of two-stage thermoelectric couple |
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HE Yongling1,2, ZHOU Minfeng1,2
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(1. School of Transportation Science and Engineering, Beihang University, 100191 Beijing, China; 2. Beijing Engineering Center for Clean Energy and High Efficient Power, 100191 Beijing, China）
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| Abstract: |
| A new two-stage thermoelectric couple (TE couple) is proposed in this paper. In order to overcome the disadvantages of 1-D heat transfer model mentioned in the previous research, 3-D finite element models are established based on the conventional thermoelectric couple and the two-stage thermoelectric couple separately, the temperature, convention and electric potential boundaries are defined and reasonable boundary conditions are set to simulate the models in ANSYS Workbench environment. Controlling variable method is used to study the influences of different input variables on the output performance of thermoelectric couples. Simulation results show that the load resistance influence the output voltage and current. The two-stage TE couple are better than the conventional one when load resistance is smaller than one critical value, but the maximum output power of the two-stage TE couple is always larger than the conventional TE couple. |
| Key words: two-stage thermoelectric couple conventional thermoelectric couple 3-D finite element model controlling variable method output performances simulation |
