Effect of sonication characteristics on stability, thermophysical properties, and heat transfer of nanofluids: A comprehensive review

Asadi, Amin; Pourfattah, Farzad; Szilágyi, Imre Miklós; Afrand, Masoud; Żyła, Gaweł; Ahn, Ho Seon; Wongwises, Somchai; Nguyen, Hoang M.; Arabkoohsar, Ahmad; Mahian, Omid

doi:10.1016/j.ultsonch.2019.104701

Cited by 239 publications

(82 citation statements)

References 68 publications

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“…Development of more suitable surfactants and methods, the optimum amount of surfactant for better stability of nanofluids will be an interesting topic. Another important research priorities are the investigation of sonication time and power on GNFs and finding the optimal settings [233]. More research is needed for GO composite-based nanofluids, i.e., GO can have a composite with inorganic materials.…”

Section: Discussionmentioning

confidence: 99%

Review on the recent progress in the preparation and stability of graphene-based nanofluids

Mahian

Wongwises

et al. 2020

J Therm Anal Calorim

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110

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Graphene has attracted much attention from the science world because of its mechanical, thermal, and physical properties. Graphene nanofluid is well known for its easy synthesis, longer suspension stability, higher heat conductivity, lower erosion, corrosion, larger surface area/volume ratio, and lower demand for pumping power. This article is an audit of experimental outcome about the preparation and stability of graphene-based nanofluids. Numerous researches to prepare and stabilize graphene-based nanofluids have been developed, and it is indispensable to create a complete list of the approaches. This research work outlines the advancement on preparation and assessment methods and the techniques to enhance the stability of graphene nanofluids and outlook prospects.

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Section: Discussionmentioning

confidence: 99%

Review on the recent progress in the preparation and stability of graphene-based nanofluids

Mahian

Wongwises

et al. 2020

J Therm Anal Calorim

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110

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“…In order to study the effects of ultrasonication on the stability and rheological properties of the NF, different ultrasonication times of 10, 20, 40, 60, 70, 75, and 80 min were applied. The effectiveness of the ultrasonication process has been proven in the literature [39][40][41][42] . However, optimum ultrasonication time is still challenging.…”

Section: Sample Preparationmentioning

confidence: 99%

Effects of ultrasonication time on stability, dynamic viscosity, and pumping power management of MWCNT-water nanofluid: an experimental study

Asadi

Alarifi

2020

Sci Rep

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It is known that ultrasonication has a certain effect on thermophysical properties and heat transfer of nanofluids. The present study is the continuation of the authors’ previous research on the effects of ultrasonication on the thermophysical properties of Multi-Walled Carbon Nanotubes (MWCNTs)-water nanofluid. Investigating the effects of ultrasonication time on samples’ stability, rheological properties, and pumping power of a water-based nanofluid containing MWCNTs nanoparticle is the main objective of the present study. The two-step method has been employed to prepared the samples. Moreover, a probe-type ultrasonic device has been used, and different ultrasonication times have been applied. The samples’ stability is investigated in different periods. The results revealed that prolonging the ultrasonication time to 60 min leads to improving the samples’ stability while prolonging ultrasonication time to higher than 60 min resulted in deteriorating the stability. As for dynamic viscosity, it is observed that increasing ultrasonication time to 60 min leads to decreasing the dynamic viscosity of the samples. As for pumping power, it is observed that the maximum increase in fanning friction factor ratio is less than 3%, which shows that adding MWCNTs to water does not impose a considerable penalty in the required energy for pumping power.

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“…Based on the combination of process parameters arrived using DOE, the nanoparticles and surfactant were dispersed in 40 ml of DI water followed by mechanical agitation for 30 minutes and 15 minutes of sonication. In the present study probe sonication was adopted as it is reported in literature [36] to be best suited for preparation of nanofluids. Once the nanofluid samples based on the design matrix is prepared, its thermal conductivity and solar weighted absorption fraction were measured.…”

Section: Preparation Of Sio2/ag-cuo Nanofluidmentioning

confidence: 99%

Optimisation of thermo-optical properties of SiO2/Ag–CuO nanofluid for direct absorption solar collectors

Joseph

Sreekumar

Kumar

et al. 2019

Journal of Molecular Liquids

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Augmenting thermal and optical properties of working fluids used in solar thermal conversion systems using hybrid nanomaterials is gaining prominence. In the present study photo-thermal analysis and thermal conductivity investigations were performed on SiO2/Ag-CuO binary water based nanofluid. The influence of particle concentration and surfactant concentration on thermo-optical properties were investigated using the design of experiment concept. Analysis of variance (ANOVA) was employed to study the significance of the process parameters on thermal conductivity and solar weighted absorption fraction of nanofluid. The statistical optimisation of the process parameters was done using the desirability function. The optimum combination of nanoparticles and surfactant that yield good thermal conductivity and solar absorption was found to be SiO2/Ag: 206.3 mg/litre, CuO: 864.7 mg/litre, and SDS (surfactant): 1996.2 mg/litre. The optimum mass fraction of constituents yielded a relative thermal conductivity of 1.234 and solar weighted absorption fraction of 82.82 %.

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Effect of sonication characteristics on stability, thermophysical properties, and heat transfer of nanofluids: A comprehensive review

Cited by 239 publications

References 68 publications

Review on the recent progress in the preparation and stability of graphene-based nanofluids

Review on the recent progress in the preparation and stability of graphene-based nanofluids

Effects of ultrasonication time on stability, dynamic viscosity, and pumping power management of MWCNT-water nanofluid: an experimental study

Optimisation of thermo-optical properties of SiO2/Ag–CuO nanofluid for direct absorption solar collectors

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