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A Critical Review on Geometric Improvements for Heat Transfer Augmentation of Microchannels

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  • Hao Yu

    (Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
    Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China)

  • Tongling Li

    (Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Xiaoxin Zeng

    (Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Tianbiao He

    (Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Ning Mao

    (Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
    Institute of Industrial Science, The University of Tokyo, Meguro City, Tokyo 153-8505, Japan)

Abstract

With the application of microdevices in the building engineering, aerospace industry, electronic devices, nuclear energy, and so on, the dissipation of high heat flux has become an urgent problem to be solved. Microchannel heat sinks have become an effective means of thermal management for microdevices and enhancements for equipment due to their higher heat transfer and small scale. However, because of the increasing requirements of microdevices for thermal load and temperature control and energy savings, high efficiency heat exchangers, especially microchannels are receiving more and more attention. To further improve the performance of microchannels, optimizing the channel geometry has become a very important passive technology to effectively enhance the heat transfer of the microchannel heat sink. Therefore, in this paper, the microchannel geometry characteristics of previous studies are reviewed, classified and summarized. The review is mainly focused on microchannel geometry features and structural design to strengthen the effect of heat transfer and pressure drop. In addition, the correlation between boiling heat transfer and geometric characteristics of microchannel flow is also presented, and the future research direction of microchannel geometry design is discussed.

Suggested Citation

  • Hao Yu & Tongling Li & Xiaoxin Zeng & Tianbiao He & Ning Mao, 2022. "A Critical Review on Geometric Improvements for Heat Transfer Augmentation of Microchannels," Energies, MDPI, vol. 15(24), pages 1-45, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9474-:d:1003094
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    References listed on IDEAS

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    1. Radwan, Ali & Ookawara, Shinichi & Ahmed, Mahmoud, 2019. "Thermal management of concentrator photovoltaic systems using two-phase flow boiling in double-layer microchannel heat sinks," Applied Energy, Elsevier, vol. 241(C), pages 404-419.
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    Cited by:

    1. Jieyan Jiang & Changxu Chen & Haoxiang Huang & Zhenhai Pan, 2024. "Weakening of Ledinegg Instability and Maldistribution of Boiling Flow in Parallel Microchannels by Entry Effects," Energies, MDPI, vol. 17(8), pages 1-18, April.
    2. Ming Chen & Can Ji & Zhigang Liu & Naihua Wang, 2023. "Numerical Simulation of Flow and Heat Transfer Characteristics in Non-Closed Ring-Shaped Micro-Pin-Fin Arrays," Energies, MDPI, vol. 16(8), pages 1-17, April.

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