Stability of nanofluids

被引：58

作者：

Setia, Hema ^{[1
]}

Gupta, Ritu ^{[2
]}

Wanchoo, R.K. ^{[2
]}

机构：

[1] University Institute of Engineering and Technology, Panjab University, Chandigarh

[2] University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh

来源：

Materials Science Forum | 2013年 / 757卷

关键词：

Dynamic light scattering; Mixing; Nanofluids; Nanoparticles; pH; Shear; Sonication; Surfactant; Zeta potential;

D O I：

10.4028/www.scientific.net/MSF.757.139

中图分类号：

学科分类号：

摘要：

It has long been established that a suspension of nanosized solid particles in liquids provide useful advantages in industrial heat transfer fluid systems. Numerous investigations on nanofluids show a significant enhancement in thermal conductivity over the base fluid in which these nanoparticles are dispersed. However, the stability of the suspension is critical in the development and application of these new kind of heat transfer fluids. Rather, high discrepancy in the published data for the same nanoparticles on the physical and thermal characteristics of nanofluids is primarily due to different methods adopted by different researchers to obtain stable nanofluids. Sedimentation and agglomeration of nanoparticles in nanofluids and their dispersion stability has not been well addressed in the literature. Hence, there is a need to establish a standard method of preparation of these nanofluids so as to obtain a unified data which can eventually be utilized for the application of nanofluids. This chapter focuses on the stability of nanofluids prepared via two step process. Different parameters that affect the stability of nanofluids have been discussed. Different techniques that have been used for the evaluation of the stability characteristics of nanofluids have been elucidated. © (2013) Trans Tech Publications, Switzerland.

引用

页码：139 / 149

页数：10

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