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Experimental Investigation on Flow and Heat Transfer Characteristics of a Needle-Cylinder Type Ionic Wind Generator for LED Cooling

Author

Listed:
  • Jingguo Qu

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Lingjian Kong

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jianfei Zhang

    (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

Ionic wind cooling for electronic elements is a relevant research field. In order to study the cooling performance of ionic wind on a Light Emitting Diode (LED), an ionic wind generator with a needles-ring electrode configuration was set up. A cylindrical heat sink for the heat dissipation of a heating film representing the LED chip was also manufactured. Following this, the effect of the needle number, the distance between the needles and the ring electrode, and the polarity of the corona discharge on the ionic wind velocity were studied. Finally, the optimal distance between the needles and the ring electrode was adopted to attain the maximum wind velocity with different numbers of needles. After this, the ionic wind device was used to cool the heating film at the working power of 10 watts. The surface temperature of the heating film was measured to evaluate the cooling performance of the ionic wind device. The experimental results indicate that the maximum temperature drop in the heating film center reaches 35.6 °C in the five needle-electrode case, which is very effective and can meet the demands of a 10 watts LED heat dissipation.

Suggested Citation

  • Jingguo Qu & Lingjian Kong & Jianfei Zhang, 2018. "Experimental Investigation on Flow and Heat Transfer Characteristics of a Needle-Cylinder Type Ionic Wind Generator for LED Cooling," Energies, MDPI, vol. 11(5), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1149-:d:144604
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    Cited by:

    1. Mar Cogollo de Cádiz & Pedro Martí Balsalobre & Andrés Díaz Lantada, 2022. "Research on Wire-to-Two Fin Configuration for Positive Atmospheric Plasma by Electrokinetic Blower," Energies, MDPI, vol. 15(15), pages 1-15, July.
    2. Eduardo Balvís & Angel Paredes & Iván Area & Ricardo Bendaña & Alicia V. Carpentier & Humberto Michinel & Sonia Zaragoza, 2020. "A Fractional Derivative Modeling of Heating and Cooling of LED Luminaires," Mathematics, MDPI, vol. 8(3), pages 1-8, March.
    3. Lars Zigan, 2018. "Electric Fields in Energy and Process Engineering," Energies, MDPI, vol. 11(9), pages 1-4, August.
    4. Lars Zigan, 2018. "Overview of Electric Field Applications in Energy and Process Engineering," Energies, MDPI, vol. 11(6), pages 1-33, May.
    5. Chunlin Xu & Huai Zheng & Jie Liu & Jingcao Chu & Xiaoliang Zeng & Rong Sun & Sheng Liu, 2020. "Enhanced Cooling of LED Filament Bulbs Using an Embedded Tri-Needle/Ring Ionic Wind Device," Energies, MDPI, vol. 13(11), pages 1-20, June.

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