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首页> 外文期刊>International Journal of Heat and Mass Transfer >Thermal conductivity of nanofluids containing high aspect ratio fillers
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Thermal conductivity of nanofluids containing high aspect ratio fillers

机译：包含高长径比填料的纳米流体的热导率

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摘要

The effective thermal conductivity of three water based nanofluids (NFs) consisting of large aspect ratio fillers - carbon nanotubes (CNTs), silver nanowires. copper nanowires - were measured by transient hot wire method. The results show that silver nanofluid has the highest thermal conductivity compared with copper and CNTs nanofluids, while the latter two present almost the same thermal conductivity at the same volume fraction. The experiment indicates that particle shape has a substantial effect on the effective thermal conductivity of suspension and shape factor is one of the most important factors that leads to the large discrepancies among the experimental values of the thermal conductivities. Our results reveal that material with higher thermal conductivity is not a decisive factor and not always effective to improve the thermal transport properties of nanofluids.
机译：三种由大长径比填充剂组成的水基纳米流体（NF）的有效导热率-碳纳米管（CNT），银纳米线。铜纳米线-通过瞬态热线法测量。结果表明，与铜和CNTs纳米流体相比，银纳米流体具有最高的导热率，而后两者在相同的体积分数下具有几乎相同的导热率。实验表明，颗粒形状对悬浮液的有效热导率有很大影响，形状因子是导致热导率实验值之间存在较大差异的最重要因素之一。我们的结果表明，具有较高热导率的材料不是决定性因素，并且并非总是有效地改善纳米流体的热传输性能。

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  • 来源
  • 作者

    Bangming Gu; Bo Hou; Zhangxian Lu; Zhengliang Wang; Shanfei Chen;

  • 作者单位

    Institute of Applied Physics, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo 315101, China;

    School of Physical Science and Technology, Soochow University, 1 Shizi Street, Suzhou 215006, China;

    Institute of Applied Physics, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo 315101, China;

    Institute of Applied Physics, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo 315101, China;

    Institute of Applied Physics, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo 315101, China;

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

    Nanofluids; Thermal conductivity; Aspect ratio; Transient hot wire method;

    机译：纳米流体;导热系数;长宽比;瞬态热线法;

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