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Thermal performance of U-shaped serpentine microchannel heat sink using various metal oxide nanofluids

机译：使用各种金属氧化物纳米流体的U形蛇形微通道散热器的热性能

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摘要

This study aims to evaluate the thermal performance and friction factor characteristics of the U-shaped serpentine microchannel heat sink using three different nanofluids. Two distinct nanoparticles, namely Al_2O_3 (alumina) and CuO (copper oxide), were used for the preparation of nanofluids using water and ethylene glycol (EG) as base fluids. Three nanofluids, namely nanofluid I (Al_2O_3 + water), nanofluid Ⅱ (CuO + water), and nanofluid Ⅲ (CuO + EG), have been prepared. The results showed that the thermal conductivity of nanofluids was increased for all concentrations (from 0.01 to 0.3%), compared with base fluids. The theoretical values derived from the relationship between the Darcy friction factor showed a clear understanding of the fully developed laminar flow. Thermal resistance for nanofluid Ⅲ was lower than other nanofluids, resulting in a higher cooling efficiency. The nanofluid mechanism and the geometry of the U-shaped serpentine heat sink have led to the improvement in the thermal performance of electronic cooling systems.
机译：本研究旨在使用三种不同的纳米流体评估U形蛇形微通道散热器的热性能和摩擦因子特征。两种不同的纳米颗粒，即Al_2O_3（氧化铝）和CuO（氧化铜），用于使用水和乙二醇（例如）作为基础流体制备纳米流体。已经制备了三种纳米流体，即纳米流体I（Al_2O_3 +水），纳米流体Ⅱ（CuO +水）和纳米流体Ⅲ（CUO + Em）。结果表明，与基础流体相比，所有浓度（0.01至0.3％）增加了纳米流体的导热率。达到摩西摩擦因子之间的关系的理论值表明，清楚地了解完全开发的层流。纳米流体Ⅲ的热阻低于其他纳米流体，导致更高的冷却效率。 U形蛇形散热器的纳米流体机构和几何形状导致了电子冷却系统的热性能的提高。

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  • 来源
    《Heat transfer》 |2021年第4期|3094-3118|共25页
  • 作者

    A. Sivakumar; R. Sathiyamoorthi; N. Alagumurthi; V. Jayaseelan; K. Sudhakar;

  • 作者单位

    Department of Mechanical Engineering CHRIST College of Engineering & Technology Puducherry India;

    Department of Mechanical Engineering Panimalar Engineering College Chennai Tamil Nadu India;

    Department of Mechanical Engineering Pondicherry Engineering College Puducherry India;

    Department of Mechanical Engineering Prathyusha Engineering College Chennai Tamil Nadu India;

    Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang Pekan Pahang Malaysia Automotive Engineering Centre Universiti Malaysia Pahang Pekan Pahang Malaysia;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    alumina (Al_2O_3); CuO; ethylene glycol; metal oxide nanofluids; serpentine microchannel;

    机译：氧化铝（AL_2O_3）;cuo;乙二醇;金属氧化物纳米流体;蛇纹石微通道;

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