An updated review on the influential parameters on thermal conductivity of nano-fluids

Yang, Linjun; Ji, Weikai; Huang, Jian‐An; Xu, Guoying

doi:10.1016/j.molliq.2019.111780

Cited by 135 publications

(19 citation statements)

References 300 publications

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“…The values of the thermophysical properties of nanofluids are sensitive to the volume and size of nanoparticles used, the temperature of the mixture and the use of surfactants [167]. Yang et al [168] investigated the thermal conductivity of graphene oxide/water nanofluids with a mass concentration range of 0-1.5%.…”

Section: Factors Affecting Nanofluids Stability and Thermophysical Prmentioning

confidence: 99%

An updated review of nanofluids in various heat transfer devices

Okonkwo

Wole‐Osho

Almanassra

et al. 2020

J Therm Anal Calorim

243

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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: Factors Affecting Nanofluids Stability and Thermophysical Prmentioning

confidence: 99%

An updated review of nanofluids in various heat transfer devices

Okonkwo

Wole‐Osho

Almanassra

et al. 2020

J Therm Anal Calorim

243

View full text Add to dashboard Cite

show abstract

“…It is obvious that typical generator oils use approximately less thermal conductivity and transfer of heat characteristics. Yang with his co-workers [33] analyzed it by using the nanofluids. Karvelas et al [34] discussed the aggregation of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Radiation and Multiple Slip Effects on Magnetohydrodynamic Bioconvection Flow of Micropolar Based Nanofluid over a Stretching Surface

et al. 2021

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Our aim in this article is to study the radiation and multiple slip effects on magnetohydrodynamic bioconvection flow of micropolar based nanofluid over a stretching surface. In addition, a steering mechanism of making improvements to the Brownian motion and thermophoresis motion of nanoparticles is integrated. The numerical solution of 2-dimensional laminar bioconvective boundary layer flow of micropolar based nanofluids is presented. The basic formulation as partial differential equations is transmuted into ordinary differential equations with the help of suitable similarity transformations. Which are then solved by using the Runge–Kutta method of fourth-order with shooting technique. Some important and relevant characteristics of physical quantities are evaluated via inclusive numerical computations. The influence of vital parameters such as buoyancy parameter λ, bioconvection Rayleigh number Rb, the material parameter K are examined. This investigation showed that with the increment in material parameter, micro rotation and velocity profile increases. In addition, the temperature rises due to the enhancement in Nb (Brownian motion) and Nt (thermophoresis parameter).

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“…Due to the high use of water and ethylene glycol in thermal systems of these fluids are the most widely used base fluids [10]. The higher thermal conductivity measured in nanofluids compared to Maxwell's effective environmental theory predictions has led many researchers to consider nanofluids as the next generation of fluids used for heat transfer [11][12][13][14]. Therefore, nanofluids are used for many engineering applications such as cooling of electronic systems, thermal managing of vehicles and solar energy-based systems.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Nano Fluid Hydrodynamic Behavior of Al2O3 in Heating Systems of Residential Building

Alayi¹,

Zanghaneh²

2021

IJHT

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In plumbing systems and heat exchangers, of the important criteria for selecting common fluids such as ethylene glycol and water is to create a very low pressure loss, which as a result of this intrinsic feature, accurate flow measurement is possible. In present study, the numerical study of pressure loss and Nano fluid flow rate with base fluid has been investigated to measure other parameters. In present study, the flow of Al2O3 and TiO2 Nano fluids in residential building plumbing systems were studied in laboratory under calm and turbulent flow conditions with different boundary conditions, different concentrations of Nano fluid. The results show that the use of nanoparticles, especially metal nanoparticles in base fluids, leads to an increase in pressure loss, which is caused by the vortex currents created at the end of the pipe path, especially the parts where the sudden change in pipe cross section and also the bends.

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An updated review on the influential parameters on thermal conductivity of nano-fluids

Cited by 135 publications

References 300 publications

An updated review of nanofluids in various heat transfer devices

An updated review of nanofluids in various heat transfer devices

Radiation and Multiple Slip Effects on Magnetohydrodynamic Bioconvection Flow of Micropolar Based Nanofluid over a Stretching Surface

Experimental Analysis of Nano Fluid Hydrodynamic Behavior of Al2O3 in Heating Systems of Residential Building

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