...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Experimental Mechanics >Thermal Transport Phenomena of Graphene Oxide Nanofluids in Turbulent Pipe Flow
【24h】

Thermal Transport Phenomena of Graphene Oxide Nanofluids in Turbulent Pipe Flow

机译：湍流管中氧化石墨烯纳米流体的热输运现象

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of the present study is to investigate the thermal fluid flow transport phenomenon of graphene oxide (GO) nanofluids in the heated horizontal stainless steel circular tube that was subjected to a uniform heat flux at its outer surface. The heat transfer and the pressure drop within flowing base fluid (pure water) were measured and compared with the corresponding data from the correlations. Consideration is given to the effects of volume fraction of the nanoparticle on the thermal conductivity, viscosity, and zeta potential. Graphene oxide (GO) nanoparticles were synthesized by the modified Hummers method. The convective heat transfer performance results show that the dispersed nanoparticles can always enhance the heat transfer coefficient of the base fluid, and the highest enhancement was obtained to be 181 % in the concentration of 0.2 vol.% of GO nanoparticles with Reynolds number 3000. The thermal conductivity enhancement depends strongly on the concentration of GO particles and increases with the increasing loading. It was also shown that the viscosity and pressure drop increase in accordance with an increase of the volume fraction.
机译：本研究的目的是研究在加热的卧式不锈钢圆管中氧化石墨烯（GO）纳米流体在其外表面受到均匀热通量的热流体流动传输现象。测量流动的基础流体（纯水）中的热传递和压降，并将其与来自相关性的相应数据进行比较。考虑了纳米颗粒的体积分数对导热率，粘度和ζ电势的影响。通过改进的Hummers方法合成了氧化石墨烯（GO）纳米颗粒。对流传热性能结果表明，分散的纳米颗粒始终可以提高基础流体的传热系数，在0.2体积％的雷诺数为3000的GO纳米颗粒的浓度下，最高的增强值为181％。导热系数的提高很大程度上取决于GO颗粒的浓度，并且随着载荷的增加而增加。还显示出粘度和压降随着体积分数的增加而增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号