Developments and future insights of using nanofluids for heat transfer enhancements in thermal systems: a review of recent literature

Kaggwa, Abdul; Carson, James K.

doi:10.1007/s40089-019-00281-x

Cited by 58 publications

(14 citation statements)

References 97 publications

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“…Therefore, heat transfer enhancement is a very important area in thermal engineering. Several techniques have been considered to improve the heat transfer coefficient between the working fluids and the fluid contact surfaces [11,12]. Conventional heat transfer fluids such as water, thermal oils and ethylene glycol/water have some limitations as their thermal properties are quite low when compared to those of solids, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

An updated review of nanofluids in various heat transfer devices

Okonkwo

Wole‐Osho

Almanassra

et al. 2020

J Therm Anal Calorim

254

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The field of nanofluids has received interesting attention since the concept of dispersing nanoscaled particles into a fluid was first introduced in the later part of the twentieth century. This is evident from the increased number of studies related to nanofluids published annually. The increasing attention on nanofluids is primarily due to their enhanced thermophysical properties and their ability to be incorporated into a wide range of thermal applications ranging from enhancing the effectiveness of heat exchangers used in industries to solar energy harvesting for renewable energy production. Owing to the increasing number of studies relating to nanofluids, there is a need for a holistic review of the progress and steps taken in 2019 concerning their application in heat transfer devices. This review takes a retrospective look at the year 2019 by reviewing the progress made in the area of nanofluids preparation and the applications of nanofluids in various heat transfer devices such as solar collectors, heat exchangers, refrigeration systems, radiators, thermal storage systems and electronic cooling. This review aims to update readers on recent progress while also highlighting the challenges and future of nanofluids as the next-generation heat transfer fluids. Finally, a conclusion on the merits and demerits of nanofluids is presented along with recommendations for future studies that would mobilise the rapid commercialisation of nanofluids.

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Section: Introductionmentioning

confidence: 99%

An updated review of nanofluids in various heat transfer devices

Okonkwo

Wole‐Osho

Almanassra

et al. 2020

J Therm Anal Calorim

254

View full text Add to dashboard Cite

show abstract

“…This influence of concentration of the nanoparticles in the fluid may be due to the higher inter-particle forces in higher concentration. This higher inter-particle forces influences the nanofluids to remain Newtonian [42]. Whereas the rGO based nanofluids remain consistently as a shear thickening or dilatant fluids in all concentrations and temperatures.…”

Section: B Effect Of Ternary Hybrid Nanoparticle Type On Concentrationmentioning

confidence: 96%

Experimental Investigation on Rheological Properties of Water Based Novel Ternary Hybrid Nanofluids

Zayan¹,

Rasheed²,

John³

et al. 2021

Preprint

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This study presents the rheological characterization of deionised water dispersed with two different ternary-hybrid nanoparticles namely, GO-TiO2-Ag and rGO-TiO2-Ag. The stability of 0.05 wt% nanofluid samples are serially diluted by 10 fold in 5 levels is determined using zeta potential measurements. The non-linear viscoelastic measurements at temperatures ranging from 25oC to 50oC reveal that the graphene based ternary hybrid nanoparticle nanofluids exhibit Newtonian behaviour at higher concentrations. However, it displays shear thinning or pseudo-plastic fluid characteristics at lower concentration, suggesting a potential influence of nanoparticle aggregation on the viscosity. The experimental results are found to be in good agreement with the existing water based viscosity models. In addition, the effect due to shear stress, angular sweep, frequency sweep and damping factor ratio is also plotted.

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“…These problems are caused by the design and conventional working fluids, such as oil or water-based, with low thermal absorption and heat transfer capacity. Much research has been conducted to enhance the efficiency of solar thermal systems [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 ]. To alleviate the above disadvantages, direct absorption solar collectors, which have less heat transfer steps than the common ones, as shown in Figure 1 , have been studied and developed [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanomaterial-Based Nanofluids for Direct Thermal Solar Absorption

et al. 2020

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Recently, many scientists have been making remarkable efforts to enhance the efficiency of direct solar thermal absorption collectors that depends on working fluids. There are a number of heat transfer fluids being investigated and developed. Among these fluids, carbon nanomaterial-based nanofluids have become the candidates with the most potential by the heat absorbing and transfer properties of the carbon nanomaterials. This paper provides an overview of the current achievements in preparing and exploiting carbon nanomaterial-based nanofluids to direct thermal solar absorption. In addition, a brief discussion of challenges and recommendations for future work is presented.

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Developments and future insights of using nanofluids for heat transfer enhancements in thermal systems: a review of recent literature

Cited by 58 publications

References 97 publications

An updated review of nanofluids in various heat transfer devices

An updated review of nanofluids in various heat transfer devices

Experimental Investigation on Rheological Properties of Water Based Novel Ternary Hybrid Nanofluids

Carbon Nanomaterial-Based Nanofluids for Direct Thermal Solar Absorption

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