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Research on Thermal Performance of the Microchannel with Internal Cavities Under Al 2 O 3 -Water Nanofluid

Author

Listed:
  • Fang Li

    (School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China)

  • Zewen Tan

    (School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China)

  • Hu He

    (College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China)

  • Youhang Zhou

    (School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China)

  • Xuan Tang

    (School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China)

  • Wenhui Zhu

    (College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China)

Abstract

As the demand for efficient heat dissipation in information devices continues to escalate, the heat flux of integrated packaging devices is poised to reach 100 W/cm 2 universally, rendering microchannel liquid cooling technology a pivotal solution in thermal management. In this work, the microchannel heat sink with spoiler cavities, optimized via field synergy principle, was integrated into the high-power electronics, and its flow and heat transfer performance were experimentally investigated using Al 2 O 3 -water nanofluid. The results show that the experimental and simulation results of the optimized microchannel heat sink integrated with IGBT devices are in good agreement. With structural optimization combined with an appropriate volume fraction of nanofluid, the microchannel heat sink exhibited significantly better heat dissipation performance than that of rectangular heat sinks under a heat flux of 100 W/cm 2 . Furthermore, when the volumetric flow rate exceeded 0.6 mL/s, the heat transfer performance was improved by 38% compared to the rectangular microchannel heat sink with 1% volume fraction of Al 2 O 3 -water nanofluid.

Suggested Citation

  • Fang Li & Zewen Tan & Hu He & Youhang Zhou & Xuan Tang & Wenhui Zhu, 2025. "Research on Thermal Performance of the Microchannel with Internal Cavities Under Al 2 O 3 -Water Nanofluid," Energies, MDPI, vol. 18(16), pages 1-18, August.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:16:p:4419-:d:1727675
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    References listed on IDEAS

    as
    1. Bianco, Vincenzo & Scarpa, Federico & Tagliafico, Luca A., 2018. "Numerical analysis of the Al2O3-water nanofluid forced laminar convection in an asymmetric heated channel for application in flat plate PV/T collector," Renewable Energy, Elsevier, vol. 116(PA), pages 9-21.
    2. Zhihao Wang & Xuan Tang & Youhang Zhou & Hai Huang & Haifeng Dai, 2024. "Experimental and Modeling Analysis of Thermal Runaway for LiNi 0.5 Mn 0.3 Co 0.2 O 2 /Graphite Pouch Cell Triggered by Surface Heating," Energies, MDPI, vol. 17(4), pages 1-16, February.
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    Cited by:

    1. Wenxu Yu & Xiangyu Guan & Liang Xuan, 2025. "Heat and Mass Transfer Simulation of Nano-Modified Oil-Immersed Transformer Based on Multi-Scale," Energies, MDPI, vol. 18(19), pages 1-16, September.

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