Measurement of thermal conductivity of graphene–water nanofluid at below and above ambient temperatures

Ahammed, Nizar; Asirvatham, Lazarus Godson; Titus, Joel; Bose, Jefferson Raja; Wongwises, Somchai

doi:10.1016/j.icheatmasstransfer.2015.11.002

Cited by 103 publications

(34 citation statements)

References 26 publications

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“…Baby and Sundara [97] presented a technique for preparing the copper oxidedecorated graphene-dispersed nanofluids. Firstly, carboxyl Silicone oil Functionalized GNS MHM, then synthesized 0.0-0.07 mass% [130] EG DI NDG-MNT HM, then CVD 0.005-0.03 vol% 0.005-0.02 vol% [131] DW + SUR GNSs SBM 0.05 mass% [132] Kerosene + SUR GNPs SBM 0.005-0.2 mass% [133] DW GNSs SBM 0.003-0.009 mass% [134] DW + SUR GR SBM 0.05-0.15 mass% [192] EG GO MHM 0.1-5 vol% [193] DW Phenyl-sulfonic-functionalized GR SBM 0.02-1 vol% [194] DI GO MHM 0.005-0.01 mass% [195] EG GO MHM 0.01-0.05 mass% [196] DW GNSs SBM 0.003-0.006 mass% [197] DI GNPs SBM 0.025-0.1 mass% [198] DW GNPs SBM 1 mass% [199] DW + SUR GNPs SBM 0.05-0.15 vol% [200] DW GNSs SBM 0.001-0.01 mass% GR graphene, GI graphite, NP nanoparticle, SUR surfactant Then, the functionalized graphene was utilized to decorate the CuO nanoparticles with the help of CuCl 2 and NaBH 4 and NaOH. Baby and Ramaprabhu [98] and Kole and Dey [105] utilized dried GO to produce hydrogen exfoliated graphene in hydrogen at 200 °C.…”

Section: Preparation Of Nanofluidsmentioning

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: Preparation Of Nanofluidsmentioning

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

Self Cite

110

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“…According to the hydrophilic or hydrophobic properties of both nanoparticle and host fluid, proper coatings and stabilizers should be employed to obtain stable suspensions [46]. [47][48][49][50]. Particle coatings may be in turn composed by an active head and a tail group, as schematically reported in Fig.…”

Section: Nanofluid Synthesismentioning

confidence: 99%

A review on the heat and mass transfer phenomena in nanofluid coolants with special focus on automotive applications

Bigdeli

Fasano

Cardellini

et al. 2016

Renewable and Sustainable Energy Reviews

117

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Engineered suspensions of nanosized particles (nanofluids) may be characterized by enhanced thermal properties. Due to the increasing need for ultrahigh performance cooling systems, nanofluids have been recently investigated as next-generation coolants for car radiators. However, the multiscale nature of nanofluids implies nontrivial relations between their design characteristics and the resulting thermo-physical properties, which are far from being fully understood. In this work, the role of fundamental heat and mass transfer mechanisms governing thermo-physical properties of nanofluids is reviewed, both from experimental and theoretical point of view. Particular focus is devoted to highlight the advantages of using nanofluids as coolants for automotive heat exchangers, and a number of design guidelines is reported for balancing thermal conductivity and viscosity enhancement in nanofluids. We hope this review may help further the translation of nanofluid technology from small-scale research laboratories to industrial application in the automotive sector.

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“…The experiments conducted by Ahammed et al (2016) [7] showed an increase of 5.23% in thermal conductivity of graphene-water nanocomposite, prepared using surfactant, when the volume concentration of nanoparticles is changed from 0.05% to 0.1%, and a 14.56% enhancement was observed when the volume concentration increased by three times. Harikrishnan et al (2014) [8] inferred that the latent heat of composite PCMs is lower than that of base material for both melting and freezing and the maximum changes are 3.56% and 3.82%, respectively. The thermal conductivity of graphene-water nanocomposite is found to be higher when compared with that of the metal oxide nanoparticles and is lower when compared with that of pure metallic nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Freezing and Melting Characteristics of Graphene-Based Phase Change Nanocomposite for Cold Thermal Energy Storage Applications

et al. 2019

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In the present work, the freezing and melting characteristics of water seeded with chemically functionalized graphene nanoplatelets in a vertical cylindrical capsule were experimentally studied. The volume percentage of functionalized graphene nanoplatelets varied from 0.1% to 0.5% with an interval of 0.1%. The stability of the synthesized samples was measured using zeta potential analyzer. The thermal conductivity of the nanocomposite samples was experimentally measured using the transient hot wire method. A ~24% (maximum) increase in the thermal conductivity was observed for the 0.5% volume percentage in the liquid state, while a ~53% enhancement was observed in the solid state. The freezing and melting behavior of water dispersed with graphene nanoplatelets was assessed using a cylindrical stainless steel capsule in a constant temperature bath. The bath temperatures considered for studying the freezing characteristics were −6 °C and −10 °C, while to study the melting characteristics the bath temperature was set as 31 °C and 36 °C. The freezing and melting time decreased for all the test conditions when the volume percentage of GnP increased. The freezing rate was enhanced by ~43% and ~32% for the bath temperatures of −6 °C and −10 °C, respectively, at 0.5 vol % of graphene loading. The melting rate was enhanced by ~42% and ~63% for the bath temperatures of 31 °C and 36 °C, respectively, at 0.5 vol % of graphene loading.

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Measurement of thermal conductivity of graphene–water nanofluid at below and above ambient temperatures

Cited by 103 publications

References 26 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

A review on the heat and mass transfer phenomena in nanofluid coolants with special focus on automotive applications

Experimental Investigation of Freezing and Melting Characteristics of Graphene-Based Phase Change Nanocomposite for Cold Thermal Energy Storage Applications

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