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A novel super-cooling enhancement method for a two-stage thermoelectric cooler using integrated triangular-square current pulses

Author

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  • Meng, Jing-Hui
  • Wu, Hao-Chi
  • Gao, De-Yang
  • Kai, Zhang
  • Lu, Gui
  • Yan, Wei-Mon

Abstract

In this work, a novel concept of continuous cooling has been proposed to enhance the super-cooling performance of a two-stage thermoelectric cooler, in which integrated triangular-square pulses are used with their modes separately controlled in the upper and lower stages. The 3-dimensionl modeling of the thermoelectric cooler is developed to simulate the super-cooling performance. The non-dominated Sorting Genetic Algorithm II (NSGA-II) is adopted to perform the multi-parameters optimization of pulses forms, in which twelve influencing parameters including pulse amplitude and width, several time constants such as the interval time and input time of pulses are selected as the searching variables, and maximum effective cooling zone with minimum overshoot temperature is set as the multi-objective function. The optimal designs are proved to be better in super-cooling performance for both constant and variable leg cross-sectional area, owing to their well mutual cooperation of the upper and lower stage pulses. Compared to the conventional design with completely identical imposed current form, the effective cooling zone can be improved up to 72.41% by the optimal design when the cooling load is fixed at 0 kW m-2, and the corresponding temperature overshoot can be decreased by 56.48% from 20.29 K to 8.83 K.

Suggested Citation

  • Meng, Jing-Hui & Wu, Hao-Chi & Gao, De-Yang & Kai, Zhang & Lu, Gui & Yan, Wei-Mon, 2021. "A novel super-cooling enhancement method for a two-stage thermoelectric cooler using integrated triangular-square current pulses," Energy, Elsevier, vol. 217(C).
    • Handle: RePEc:eee:energy:v:217:y:2021:i:c:s0360544220324671
    DOI: 10.1016/j.energy.2020.119360
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    References listed on IDEAS

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    1. Lv, Hao & Wang, Xiao-Dong & Wang, Tian-Hu & Cheng, Chin-Hsiang, 2016. "Improvement of transient supercooling of thermoelectric coolers through variable semiconductor cross-section," Applied Energy, Elsevier, vol. 164(C), pages 501-508.
    2. Lin, Shumin & Ma, Ming & Wang, Jun & Yu, Jianlin, 2016. "Experiment investigation of a two-stage thermoelectric cooler under current pulse operation," Applied Energy, Elsevier, vol. 180(C), pages 628-636.
    3. Meng, Jing-Hui & Wang, Xiao-Dong & Zhang, Xin-Xin, 2013. "Transient modeling and dynamic characteristics of thermoelectric cooler," Applied Energy, Elsevier, vol. 108(C), pages 340-348.
    4. Lv, Hao & Wang, Xiao-Dong & Wang, Tian-Hu & Meng, Jing-Hui, 2015. "Optimal pulse current shape for transient supercooling of thermoelectric cooler," Energy, Elsevier, vol. 83(C), pages 788-796.
    5. Lv, Hao & Wang, Xiao-Dong & Meng, Jing-Hui & Wang, Tian-Hu & Yan, Wei-Mon, 2016. "Enhancement of maximum temperature drop across thermoelectric cooler through two-stage design and transient supercooling effect," Applied Energy, Elsevier, vol. 175(C), pages 285-292.
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    Cited by:

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    4. Meng, Jing-Hui & Gao, De-Yang & Liu, Yan & Zhang, Kai & Lu, Gui, 2022. "Heat transfer mechanism and structure design of phase change materials to improve thermoelectric device performance," Energy, Elsevier, vol. 245(C).

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