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Non-Uniform Three-Dimensional Pulsating Heat Pipe for Anti-Gravity High-Flux Applications

Author

Listed:
  • Chih-Yung Tseng

    (Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Hsinchu 310, Taiwan
    Department of Mechanical Engineering, Faculty of Engineering, National Chiao Tung University, EE474, 1001 University Rd., Hsinchu 300, Taiwan)

  • Kai-Shing Yang

    (Deparment of Refrigeration, Air Conditioning and Energy Engineering, Faculty of Engineering, National Chin-Yi University of Technology, 51, Sec. 2, Chung-Shan Rd., Taichung 411, Taiwan)

  • Chi-Chuan Wang

    (Department of Mechanical Engineering, Faculty of Engineering, National Chiao Tung University, EE474, 1001 University Rd., Hsinchu 300, Taiwan)

Abstract

This study proposes a novel high-flux pulsating heat pipe that can lift the major constraint of the conventional pulsating heat pipe (PHP) which is unable to function properly upon anti-gravity operations. The proposed PHP introduces additional unbalance force via uneven tube diameter/geometry in the adiabatic sections to tailor the problem in anti-gravity operation. The design contains a three-dimensional configuration circuitry with compact arrangement tubes on the evaporator and condenser. Through this design, the non-uniform three-dimensional pulsating heat pipe (3D-PHP) manipulates the uneven inner diameters of the adiabatic sections to form uneven vapor/liquid distributions in the adiabatic sections to yield a unitary flow pattern that is able to withstand a much higher input power. The present PHP uses methanol as working fluid, with 38% volumetric filling ratio, and has a high-flux of 22.9 W/cm 2 and a low the thermal resistance ratio ( R anti-gravity / R gravity-assisted ) of 1.05 when the input power is 800 W. Both the heat flux and thermal resistance ratio for the proposed design are far better than the existing literature.

Suggested Citation

  • Chih-Yung Tseng & Kai-Shing Yang & Chi-Chuan Wang, 2020. "Non-Uniform Three-Dimensional Pulsating Heat Pipe for Anti-Gravity High-Flux Applications," Energies, MDPI, vol. 13(12), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3068-:d:371040
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    References listed on IDEAS

    as
    1. Chih-Yung Tseng & Ho-Meng Wu & Shwin-Chung Wong & Kai-Shing Yang & Chi-Chuan Wang, 2018. "A Novel Thermal Module with 3-D Configuration Pulsating Heat Pipe for High-Flux Applications," Energies, MDPI, vol. 11(12), pages 1-12, December.
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    Cited by:

    1. Xu, Yanyan & Xue, Yanqin & Qi, Hong & Cai, Weihua, 2021. "An updated review on working fluids, operation mechanisms, and applications of pulsating heat pipes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).
    2. Pawel Znaczko & Emilian Szczepanski & Kazimierz Kaminski & Norbert Chamier-Gliszczynski & Jacek Kukulski, 2021. "Experimental Diagnosis of the Heat Pipe Solar Collector Malfunction. A Case Study," Energies, MDPI, vol. 14(11), pages 1-19, May.

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