A comprehensive review of preparation, characterization, properties and stability of hybrid nanofluids

Kumar, Dileep; Arasu, A. Valan

doi:10.1016/j.rser.2017.05.257

Cited by 229 publications

(35 citation statements)

References 99 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kumar and Arasu 18 used Equation (1) to calculate hybrid nanofluid volume concentration. The mass of nanoparticles required for the determination of fly ash–Cu (80:20% by volume) hybrid nanofluid concentration in base liquid water is given in Table 2.…”

Section: Preparation Methods Of Nanofluidsmentioning

confidence: 99%

Thermophysical properties of fly ash–Cu hybrid nanofluid for heat transfer applications

Kanti¹,

Sharma

Revanasiddappa

et al. 2020

Heat Trans

View full text Add to dashboard Cite

The effect of temperature and concentration on the thermophysical properties of fly ash-copper (80% fly ash and 20% Cu by volume) water-based stable hybrid nanofluid is studied. The experiments are conducted for the volume concentration range of 0 to 0.5% in the temperature range of 30 to 60°C. The nanoparticles have been characterized by transmission electron microscopy and dynamic light scattering to determine an average nanoparticle diameter of 15 nm. The stability of nanofluid in the presence of surfactant Triton X-100 is examined with the help of zeta potential. The maximum enhancement in thermal conductivity and viscosity is 19% and 22%, respectively. The outcome of the present study showed that density, thermal conductivity, and viscosity of the hybrid nanofluid increased, whereas specific heat decreased with an increase in the nanofluid concentration. In addition, the specific heat and thermal conductivity increase, there is a decrease in density and viscosity of the hybrid nanofluid with an increase in temperature.

show abstract

Section: Preparation Methods Of Nanofluidsmentioning

confidence: 99%

Thermophysical properties of fly ash–Cu hybrid nanofluid for heat transfer applications

Kanti¹,

Sharma

Revanasiddappa

et al. 2020

Heat Trans

View full text Add to dashboard Cite

show abstract

“…In comparison, the source of the electron in FESEM is much brighter, and its beam size is much smaller, which leads to higher magnification power. Dhinesh Kumar and Valan Arasu [82] mentioned that the image provided by FESEM is clearer and less electrostatically distorted, with its spatial resolution reduced to 1.5 nm, which is three to six times better compared to conventional SEM.…”

Section: Micrograph and Imaging Observationmentioning

confidence: 99%

Recent Progress on Stability and Thermo-Physical Properties of Mono and Hybrid towards Green Nanofluids

Zainon

Azmi

2021

Micromachines

View full text Add to dashboard Cite

Many studies have shown the remarkable enhancement of thermo-physical properties with the addition of a small quantity of nanoparticles into conventional fluids. However, the long-term stability of the nanofluids, which plays a significant role in enhancing these properties, is hard to achieve, thus limiting the performance of the heat transfer fluids in practical applications. The present paper attempts to highlight various approaches used by researchers in improving and evaluating the stability of thermal fluids and thoroughly explores various factors that contribute to the enhancement of the thermo-physical properties of mono, hybrid, and green nanofluids. There are various methods to maintain the stability of nanofluids, but this paper particularly focuses on the sonication process, pH modification, and the use of surfactant. In addition, the common techniques to evaluate the stability of nanofluids are undertaken by using visual observation, TEM, FESEM, XRD, zeta potential analysis, and UV-Vis spectroscopy. Prior investigations revealed that the type of nanoparticle, particle volume concentration, size and shape of particles, temperature, and base fluids highly influence the thermo-physical properties of nanofluids. In conclusion, this paper summarized the findings and strategies to enhance the stability and factors affecting the thermal conductivity and dynamic viscosity of mono and hybrid of nanofluids towards green nanofluids.

show abstract

“…In the two-step method, NPs are produced by a chemical vapour deposition technique, inert gas condensation technique, etc. to produce powder NPs [27]. Then, the powder is mixed with the base fluid with the help of induction of intense magnetic force agitation, ultrasonic excitation, high shear mixing, ball milling and homogenization.…”

Section: Classification and Preparation Of Nfsmentioning

confidence: 99%

Single and Hybrid Nanofluids to Enhance Performance of Flat Plate Solar Collectors: Application and Obstacles

Al-Yasiri

Szabó

Arıcı

2020

Period. Polytech. Mech. Eng.

View full text Add to dashboard Cite

Solar energy represents the best alternative for traditional energy sources used in many thermal energy systems. Among solar thermal systems, Flat Plate Solar Collectors (FPSCs) are the most utilized type implemented in low and medium-level thermal domestic applications. Recently, the usage of nanofluids (NFs) to enhance FPSCs is one of the newest technologies that has drawn the attention of researchers to improve the overall thermal efficiency of solar systems. This paper briefly reviews the recent studies carried on thermal performance enhancement of FPSCs by implementing NFs (single and hybrid NFs) considering the main influential parameters such as particle concentration, particle size, and collector area. Finally, the main obstacles reported by the researchers such as the instability, viscosity, concentration limit, corrosion effect and others are identified, which is believed to be useful for interested newcomers in this research area. Based on the studies investigated in this paper, NFs, even under low concentrations, can remarkably improve the energetic and exergetic efficiency of FPSCs.

show abstract

A comprehensive review of preparation, characterization, properties and stability of hybrid nanofluids

Cited by 229 publications

References 99 publications

Thermophysical properties of fly ash–Cu hybrid nanofluid for heat transfer applications

Thermophysical properties of fly ash–Cu hybrid nanofluid for heat transfer applications

Recent Progress on Stability and Thermo-Physical Properties of Mono and Hybrid towards Green Nanofluids

Single and Hybrid Nanofluids to Enhance Performance of Flat Plate Solar Collectors: Application and Obstacles

Contact Info

Product

Resources

About