Influences of Non-uniform Temperature Distribution on the Performance of Hot End of a Thermoelectric Refrigerator Chip

Xu Guoliang; Duan Yang; Huang Xiaoming; Chen Xintao

doi:10.3969/j.issn.0253-4339.2018.06.054

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Influences of Non-uniform Temperature Distribution on the Performance of Hot End of a Thermoelectric Refrigerator Chip

更新时间：2024-07-18

- Influences of Non-uniform Temperature Distribution on the Performance of Hot End of a Thermoelectric Refrigerator Chip
- Journal of Refrigeration Vol. 39, Issue 6, (2018)
- 作者机构：
  
  1. 华中科技大学能源与动力工程学院
  2. 张家港科瑞电器有限公司
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2018.06.054
  CLC：
- Published：2018
- 稿件说明：
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Xu Guoliang, Duan Yang, Huang Xiaoming, et al. Influences of Non-uniform Temperature Distribution on the Performance of Hot End of a Thermoelectric Refrigerator Chip[J]. Journal of refrigeration, 2018, 39(6).
DOI：

Xu Guoliang, Duan Yang, Huang Xiaoming, et al. Influences of Non-uniform Temperature Distribution on the Performance of Hot End of a Thermoelectric Refrigerator Chip[J]. Journal of refrigeration, 2018, 39(6). DOI： 10.3969/j.issn.0253-4339.2018.06.054.

摘要

在工程应用中，热电制冷（TEC）芯片由于多种原因可能无法在理想均温工况工作，即出现局部高温的情况。本文通过设定的非均匀温度分布来模拟热端散热不良工况，应用三维有限元分析方法对其工作性能进行数值模拟研究。从不同热端工作温度（th：20~40 ℃）、高温区最高过余温度（θm：5~30 ℃）、高温区面积常数（ω：7/16~12/16）等方面分析了不同工况下TEC芯片的工作性能，结果表明：相对制冷量偏差达到-8.788%，相对功率偏差达到2.608%，相对COP偏差达到-10.9%。

Abstract

Thermoelectric cooler（TEC）chips do not work in an ideal condition with uniform temperature in engineering applications due to various reasons

which leads to local high-temperature region. A non-uniform temperature distribution was applied to simulate the working condition while a 3D finite element method was used in the numerical analysis of TEC chips in the study. The influences of variations in the working temperature of the hot end（th：20~40 ℃）

maximum temperature difference （θm：5~30 ℃）

and area ratio of hot space （ω：7/16~12/16） on the performance of TEC chips were considered. The results indicate that the relative refrigerating capacity deviation reaches to -8.788%

the relative power deviation reaches to 2.608%

and the relative coefficient of performance (COP) reaches to -10.9%.

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Related Institution

School of Energy and Environment, Southeast University

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Tianjin University of Commerce, Refrigeration Engineering Research Center of Ministry of Education of People’s Republic of China, Tianjin Key Laboratory of Refrigeration Technology, Tianjin Refrigeration Engineering Technology Center

天津商业大学天津市制冷技术重点实验室

滨州学院机电工程学院

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