Experimental studies on the stability of CuO nanoparticles dispersed in different base fluids: influence of stirring, sonication and surface active agents

被引：86

作者：

Kamalgharibi, M. ^{[1
]}

Hormozi, F. ^{[1
]}

Zamzamian, Seyed Amir Hossein ^{[2
]}

Sarafraz, M. M. ^{[1
]}

机构：

[1] Semnan Univ, Fac Chem Petr & Gas Engn, Semnan, Iran

[2] MERC, Dept Energy, Solar Energy Grp, Karaj, Iran

来源：

HEAT AND MASS TRANSFER | 2016年 / 52卷 / 01期

关键词：

THERMAL-CONDUCTIVITY CHARACTERISTICS; BOILING HEAT-TRANSFER; GLYCOL NANOFLUIDS; ENHANCEMENT; BEHAVIOR;

D O I：

10.1007/s00231-015-1618-z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The main aim of this work is to investigate the influence of different parameters on the stability of spherical CuO nanoparticles dispersed in water, ethylene glycol and 50:50 water/ethylene glycol binary mixture as different base fluids for heat transfer applications. Nano-fluids were prepared using two-step method at weight concentration of 0.1-0.4 %. Time-settlement experiments were established to examine the stability of nano-fluids. Quality tests were also performed to investigate the morphology, purity and size of nanoparticles. In order to stabilize the nano-fluids, stirring, pH control and sonication were utilized. The criteria for assessing the stability of nano-fluids were zeta potential and time-settlement experiments. Results demonstrated that the ethylene glycol can be the best medium for dispersing the CuO nanoparticle in comparison with water and water/EG binary mixture. The best condition for achieving the most stable nano-fluid was also introduced. Role of sonication time, stirring time and addition of surfactant on the stability of nano-fluids were investigated and briefly discussed.

引用

页码：55 / 62

页数：8

共 28 条

[1] Process optimization and material properties for nanofluid manufacturing [J].

Chang, H. ;

Jwo, C. S. ;

Fan, P. S. ;

Pai, S. H. .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2007, 34 (3-4) :300-306

[2]

Choi SUS., 1995, ASMEPUBLICATIONS FED, V231, P99, DOI DOI 10.1063/1.1341218

[3] A review of polymeric dispersant stabilisation of titania pigment [J].

Farrokhpay, Saeed .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2009, 151 (1-2) :24-32

[4] A review of nanofluid stability properties and characterization in stationary conditions [J].

Ghadimi, A. ;

Saidur, R. ;

Metselaar, H. S. C. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2011, 54 (17-18) :4051-4068

[5] Stability and thermal conductivity characteristics of nanofluids [J].

Hwang, Y. ;

Lee, J. K. ;

Lee, C. H. ;

Jung, Y. M. ;

Cheong, S. I. ;

Lee, C. G. ;

Ku, B. C. ;

Jang, S. P. .

THERMOCHIMICA ACTA, 2007, 455 (1-2) :70-74

[6] Investigation on characteristics of thermal conductivity enhancement of nanofluids [J].

Hwang, Y. J. ;

Ahn, Y. C. ;

Shin, H. S. ;

Lee, C. G. ;

Kim, G. T. ;

Park, H. S. ;

Lee, J. K. .

CURRENT APPLIED PHYSICS, 2006, 6 (06) :1068-1071

[7] A new parameter to control heat transport in nanofluids: Surface charge state of the particle in suspension [J].

Lee, D ;

Kim, JW ;

Kim, BG .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (09) :4323-4328

[8] Measuring thermal conductivity of fluids containing oxide nanoparticles [J].

Lee, S ;

Choi, SUS ;

Li, S ;

Eastman, JA .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1999, 121 (02) :280-289

[9] Thermal conductivity enhancement dependent pH and chemical surfactant for Cu-H2O nanofluids [J].

Li, X. F. ;

Zhu, D. S. ;

Wang, X. J. ;

Wang, N. ;

Gao, J. W. ;

Li, H. .

THERMOCHIMICA ACTA, 2008, 469 (1-2) :98-103

[10] Evaluation on dispersion behavior of the aqueous copper nano-suspensions [J].

Li, Xinfang ;

Zhu, Dongsheng ;

Wang, Xianju .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2007, 310 (02) :456-463

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