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May 22, 2026MaterialsOpen Access

Improved Thermo-Hydraulic Stability and Boiling Heat Transfer Through a Novel Three-Layer Microchannel Heat Sink with 3/4 Open-Ring Pin Fin Arrays

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Authors

GLGuangyao LiuCJCan JiZLZhigang Liu

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Overview

Randomized trial shows enhanced heat transfer in a novel microchannel heat sink, indicating potential for improved cooling solutions.

Key Points

  • The study aims to investigate the boiling characteristics and thermo-hydraulic performance of a three-layer microchannel heat sink.
  • Systematic investigation of flow boiling characteristics with a novel design including 3/4 open-ring pin fin arrays.
  • Evaluation of hydrophilic nano-coating effects on the inner copper channel walls.
  • Analysis of two-phase flow regimes, pressure drops, and wall temperature responses.
  • Hydrophilic surface modification reduced average pressure drop by 33%.
  • Achieved a maximum convective heat transfer coefficient of 7760 W/(m2·°C), representing a 72.9% improvement.
  • Transition from vapor-dominated to liquid-dominated flow enhanced thermo-hydraulic stability.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a0ff496d674f7c03778daa3https://doi.org/10.3390/ma19102143
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