| 纳米流体传质扩散系数的测定 |
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| 引用本文： | 方晓鹏,宣益民,李强.纳米流体传质扩散系数的测定[J].工程热物理学报,2011(2). |
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| 作者姓名： | 方晓鹏 宣益民 李强 |
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| 作者单位： | 南京理工大学动力工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50436020) |
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| 摘 要： | 本文建立光学实验测试系统,测量了不同温度条件下罗丹明B在不同粒子体积份额的纳米流体(Cu-乙二醇和Cu-水)中的质扩散系数。实验结果表明;罗丹明B在纳米流体中的扩散系数大于其在基液中的扩散系数,且扩散系数随着粒子体积份额的增大而增大;当粒子体积份额一定时,扩散系数随着温度的升高而增大。
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| 关 键 词： | 纳米流体 传质扩散系数 Rhodamine B |
MEASUREMENTS OF MASS DIFFUSIVITY OF NANOFLUIDS |
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| FANG Xiao-Peng XUAN Yi-Min LI Qiang.MEASUREMENTS OF MASS DIFFUSIVITY OF NANOFLUIDS[J].Journal of Engineering Thermophysics,2011(2). |
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| Authors: | FANG Xiao-Peng XUAN Yi-Min LI Qiang |
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| Institution: | FANG Xiao-Peng XUAN Yi-Min LI Qiang (School of Power Engineering,Nanjing University of Science & Technilogy,Nanjing 210094,China) |
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| Abstract: | An optical experimental system for measuring the mass diffusivity of nanofluids is designed.The mass diffusivity of Rhodamine B in nanofluids(Cu-glycol and Cu-water) with different particle volume fractions under different temperatures are measured.The experimental results show that the mass diffusivity of Rhodamine B in nanofluids is bigger than that in deionized water,the mass diffusivity diffusion increases with the increase of particle volume fraction.For different particle volume fractions,the mass dif... |
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| Keywords: | nanofluids mass diffusivity Rhodamine B |
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