Review on the stability of nanofluids

doi:10.3969/j.issn.1674-1951.2021.07.011

Abstract

Abstract:

To achieve the goal of carbon neutralization and carbon peak,energy conversion efficiency needs to be improved.Nanofluids,as efficient heat transfer mediums,have attracted extensive attention in recent 20 years.However,the poor stability of nanofluids limit their applications in many fields.To improve the stability and promote the large-scale application of nanofluids,by summarizing the related literature,a method which can control the ion concentrations at their proper values by adjusting nanofluid' pH value is proposed.Surfactants can improve the repulsion between nanoparticles.Nanoparticle clusters can be decomposed by ultrasonic technique.The intermolecular forces between mixed nanoparticles can be utilized to improve nanofluids' stability.These methods help to solve the problem of low stability of nanofluids in long-term applications.

Key words: nanofluid, energy storage, nano-molten salt, surfactant, ultrasonic oscillation, carbon neutrality

CLC Number:

TK09：TK11⁺5

XIONG Yaxuan, SONG Chaoyu, YAO Chenhua, WANG Huihui, WANG Huixiang, HU Ziliang, WU Yuting, DING Yulong. Review on the stability of nanofluids[J]. Huadian Technology, 2021, 43(7): 68-74.

Figures/Tables 5

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