On the rheological properties of MWCNT-TiO2/oil hybrid nanofluid: An experimental investigation on the effects of shear rate, temperature, and solid concentration of nanoparticles

被引:108
作者
Alarifi, Ibrahim M. [1 ]
Alkouh, Ahmad Bader [2 ]
Ali, Vakkar [1 ]
Hoang Minh Nguyen [3 ,4 ]
Asadi, Amin [3 ,4 ]
机构
[1] Majmaah Univ, Coll Engn, Dept Mech & Ind Engn, Al Majmaah 11952, Saudi Arabia
[2] Coll Technol Studies, Petr Engn Dept, Kuwait, Kuwait
[3] Ton Duc Thang Univ, Inst Computat Sci, Div Computat Phys, Ho Chi Minh City, Vietnam
[4] Ton Duc Thang Univ, Fac Elect & Elect Engn, Ho Chi Minh City, Vietnam
关键词
Rheological behavior; TiO2; MWCNT; Solid concentration; Temperature; Correlation; OIL-BASED NANOFLUIDS; THERMAL-CONDUCTIVITY; ENGINE OIL; THERMOPHYSICAL PROPERTIES; VISCOSITY; BEHAVIOR; WATER; LUBRICANT; STABILITY; SIMULATION;
D O I
10.1016/j.powtec.2019.07.039
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The present investigation aims to experimentally examine the effects of shear rate, temperature, and solid concentration of nanoparticles on the rheological properties of TiO2-MWCNT (80%-20%)/oil (5 W50) nanofluid. The rheological behavior of the nanofluid, whether it is a Newtonian or non-Newtonian fluid, has been studied in different temperatures, shear rates, and solid concentrations. It is found that the nanofluid behaves as a Newtonian fluid under the conditions of the present study. In addition, the increasing trend in the dynamic viscosity of the nanofluid has been observed as the solid concentration increases. The maximum increase has been observed at the solid concentration and temperature of 2% and 50 degrees C, respectively, by 42%. Moreover, employing the experimental results, a new correlation for estimating the dynamic viscosity of the nanofluid in terms of temperature and solid concentrations has been proposed with the accuracy of 4%. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码:157 / 162
页数:6
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