乙二醇基纳米流体黏度的实验研究

doi:10.3969/j.issn.0438-1157.2014.06.010

化工学报 ›› 2014, Vol. 65 ›› Issue (6): 2021-2026.DOI: 10.3969/j.issn.0438-1157.2014.06.010

乙二醇基纳米流体黏度的实验研究

周登青, 吴慧英

上海交通大学机械与动力工程学院工程热物理研究所, 上海 200240

收稿日期:2013-09-29 修回日期:2013-12-12 出版日期:2014-06-05 发布日期:2014-06-05
通讯作者: 吴慧英
作者简介:周登青（1988- ），男，硕士研究生。
基金资助:
国家自然科学基金项目（51376130，50925624）；国家重点基础研究发展计划项目（2012CB720404）；上海科委基础研究重点项目（12JC1405100）；教育部博士点基金项目（20110073110037）。

Relative viscosity of ethylene glycol-based nanofluids

ZHOU Dengqing, WU Huiying

School of Mechanical and Power Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2013-09-29 Revised:2013-12-12 Online:2014-06-05 Published:2014-06-05
Supported by:
supported by the National Natural Science Foundation of China (51376130, 50925624), the National Basic Research Program of China (2012CB720404), the Science and Technology Commission of Shanghai Municipality (12JC1405100) and the Doctoral Fund of Ministry of Education of China (20110073110037).

摘要/Abstract

摘要： 实验研究了3种乙二醇基纳米流体（Al₂O₃-EG、ZnO-EG、CuO-EG）在不同质量分数（0.5%/3.0%/5.0%/7.0%）下的相对黏度随温度的变化规律，实验所用乙二醇基纳米流体采用两步法配制获得。结果表明：在30～60℃温度范围内乙二醇基纳米流体的相对黏度同温度之间并无较强的函数关系（单调递增或递减）；但在质量分数较高时，3种乙二醇基纳米流体的相对黏度随温度的变化会出现波动，且以非球形颗粒的ZnO乙二醇基纳米流体的波动最为显著；乙二醇基纳米流体的相对黏度均随纳米颗粒体积分数的增大而增大，其中CuO乙二醇基纳米流体相对黏度的增长速度最快，Al₂O₃乙二醇基纳米流体的增长速度最慢。最后比较分析了文献中相对黏度预测公式与本文实验数据的相符程度。

关键词: 纳米流体, 纳米粒子, 黏度, 乙二醇, 波动

Abstract: An experimental study was carried out on the viscosity of ethylene glycol (EG)-based nanofluids containing Al₂O₃, ZnO and CuO nanoparticles with the particle concentrations of 0.5%/3.0%/5.0%/7.0% (mass), respectively. Nanofluid samples were prepared by the two-step method without adding surfactant. The relative viscosity of EG-based nanofluids was not a strong monotonous function of temperature within 30-60℃. Nevertheless, the relative viscosity of EG-based nanofluids fluctuated with increasing temperature when mass fraction was high enough, with the fluctuation of ZnO (elongated)-EG nanofluid being more significant. It was also found that the relative viscosity of all the nanofluids tested increased with increasing volume fraction. Among them, CuO-EG increased most intensely while Al₂O₃-EG increased most moderately. Finally, a comparison analysis was made between the present experimental data and the prediction equations in literature.

Key words: nanofluids, nanoparticles, viscosity, ethylene glycol, fluctuation

中图分类号:

TK124

周登青, 吴慧英. 乙二醇基纳米流体黏度的实验研究[J]. 化工学报, 2014, 65(6): 2021-2026.

ZHOU Dengqing, WU Huiying. Relative viscosity of ethylene glycol-based nanofluids[J]. CIESC Journal, 2014, 65(6): 2021-2026.

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乙二醇基纳米流体黏度的实验研究

Relative viscosity of ethylene glycol-based nanofluids

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