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Effects of nanoparticles on nanofluid droplet evaporation

机译:纳米颗粒对纳米流体液滴蒸发的影响

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摘要

Laponite, Fe_2O_3 and Ag nanoparticles were added to deionized water to study their effect of evaporation rates. The results show that these nanofluid droplets evaporate at different rates (as indicated by the evaporation rate constant K in the well known D~2-law) from the base fluid. Different particles lead to different values of K. As the particle concentration increases due to evaporation, K values of various Ag and Fe_2O_3 nanofluids go through a transition from one value to another, further demonstrating the effect of increasing nanoparticle concentration. The implication for the heat of vaporization (h_(fg)) is discussed.
机译:将Laponite,Fe_2O_3和Ag纳米粒子添加到去离子水中以研究其蒸发速率的影响。结果表明,这些纳米流体液滴从基础流体中以不同的速率蒸发(如众所周知的D_2律中的蒸发速率常数K所示)。不同的颗粒导致不同的K值。随着颗粒浓度由于蒸发而增加,各种Ag和Fe_2O_3纳米流体的K值从一个值过渡到另一个值,进一步证明了增加纳米颗粒浓度的作用。讨论了汽化热(h_(fg))的含义。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第20期|P.3677-3682|共6页
  • 作者单位

    Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL 32816-2450, USA;

    rnNational Energy Technology Laboratory, Department of Energy, P.O. Box 10940, MS 84-340, Pittsburgh, PA 15261, USA;

    rnNational Energy Technology Laboratory, Department of Energy, P.O. Box 10940, MS 84-340, Pittsburgh, PA 15261, USA;

  • 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; evaporation; latent heat of vaporization; D~2-law;

    机译:纳米流体蒸发;汽化潜热D〜2定律;

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