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首页> 外文期刊>Japanese journal of applied physics >Zinc Oxide Nanowire Forest for Pool Boiling Heat Transfer
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Zinc Oxide Nanowire Forest for Pool Boiling Heat Transfer

机译：用于池沸腾换热的氧化锌纳米线森林

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摘要

Zinc oxide (ZnO) nanowire forest is applied for the electronics cooling by means of pool boiling heat transfer. The forest was composed of lengthwise grown backbone and branched nanowires, which were highly dense and tree-like hierarchical structures. The platinum heater and resistance temperature detector were fabricated by microfabrication on one side of silicon chips and nanowire forest was synthesized on the other side. The superheat and heat flux were evaluated at steady state while the voltage in the heater was increased gradually. The heat flux gradually increased linearly with superheat at the initial stage of heating due to convective heat transfer and abruptly increased once the coolant started to boil. It seemed that the nanowire forest played a role of increased bubble nucleation sites with superhydrophilic nature leading to enhancement of boiling heat transfer. This sheds light on application of nanostructured surface as an effective electronics cooling by boiling heat transfer.
机译：氧化锌（ZnO）纳米线森林通过池沸腾换热技术用于电子冷却。森林由纵向生长的主干和分支的纳米线组成，它们是高度密集的树状分层结构。通过微加工在硅芯片的一侧制造铂加热器和电阻温度检测器，在另一侧合成纳米线森林。在加热器中的电压逐渐增加的同时，在稳态下评估过热和热通量。由于对流传热，热通量在加热的初始阶段随着过热逐渐线性增加，并且一旦冷却剂开始沸腾，热通量就会突然增加。纳米线森林似乎起到了增加气泡成核位点的作用，而超亲水性导致沸腾传热的增强。这揭示了纳米结构表面作为通过沸腾热传递进行有效电子冷却的应用。

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  • 来源
    《Japanese journal of applied physics》 |2012年第11issue2期|11PE11.1-11PE11.5|共5页
  • 作者

    Dongjin Lee; Taehyun Kim; Sungsik Park; Seung Seob Lee; Seung Hwan Ko;

  • 作者单位

    School of Mechanical Engineering, Konkuk University, Seoul 143-701, Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea;

    School of Mechanical Engineering, Konkuk University, Seoul 143-701, Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea;

    Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea;

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