Thermophysical performance of graphene based aqueous nanofluids

Ibrahim, Hussein A.; Kong, Minsuk; Alvarado, Jorge L.

doi:10.1016/j.ijheatmasstransfer.2017.11.019

Cited by 48 publications

(32 citation statements)

References 33 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

104

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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

104

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“…to compare with the works published in the literature [42,43]. At 30 °C, the base fluid (therminol 66) had the lowest THI, such that the performance of the system was 10% lower than water.…”

Section: Temperature Of the Tankmentioning

confidence: 91%

“…Water was selected as a reference case in order Figure 7 shows thermo-hydraulic index (THI) calculated with Equation (6), with the temperature of the tank shown for various nanofluids at 1800 Re. Water was selected as a reference case in order to compare with the works published in the literature [42,43]. At 30 • C, the base fluid (therminol 66) had the lowest THI, such that the performance of the system was 10% lower than water.…”

Section: Convective Heat Transfer Coefficientmentioning

confidence: 99%

Assessment of Iron Oxide (III)–Therminol 66 Nanofluid as a Novel Working Fluid in a Convective Radiator Heating System for Buildings

et al. 2019

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This work investigates the use of iron oxide (III)–therminol 66 oil-based nanosuspensions in a convective heating system with potential heating applications in the buildings sector. In an experimental study, characteristics of nanofluids were measured, including heat capacity, thermal conductivity, and density. The influences of mass flow rate and concentration of nanofluid on various parameters were quantified, such as pressure loss, friction coefficient, and heat transfer rate. For a concentration of 0.3 wt.%, the heat transfer increased by 46.3% and the pressure drop increased by 37.5%. The latter is due to the higher friction and viscosity of the bulk of the nanofluid. Although the pressure drop is higher, the thermo-hydraulic efficiency still increased by 19%. As a result, iron oxide (III)–therminol 66 presented reasonable thermal performance, higher heat transfer coefficient, and a lower pressure drop value (19% better performance in comparison with water) for the air–liquid convective system. Results also showed that for nanosuspensions at 0.3 wt.%, the friction factor of the system increased by 10% in comparison with the performance of the system with water.

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Section: Introductionmentioning

confidence: 99%

“…In order to improve the thermal performance of the aqueous medium, a popular strategy is to add high thermally conductive nanofillers such as graphene-related materials and structures [25][26][27][28]. The super-high thermal conductivity of graphene has offered a window for enhancing the thermal transport properties of the aqueous medium largely [28][29][30]. In general, with a low graphene loading of < 5.0 vol%, the thermal conductivity of aqueous medium can be improved to 1.0 W m −1 K −1 [28][29][30][31], while this is still far behind the theoretical expectations.…”

Section: Introductionmentioning

confidence: 99%

Highly Thermo-Conductive Three-Dimensional Graphene Aqueous Medium

Ying

Yang

et al. 2020

Nano-Micro Lett.

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Highly thermo-conductive aqueous medium is a crucial premise to demonstrate high-performance thermal-related applications. Graphene has the diamond comparable thermal conductivity, while the intrinsic two-dimensional reality will result in strong anisotropic thermal conductivity and wrinkles or even crumples that significantly sacrifices its inherent properties in practical applications. One strategy to overcome this is to use three-dimensional (3D) architecture of graphene. Herein, 3D graphene structure with covalent-bonding nanofins (3D-GS-CBF) is proposed, which is then used as the filler to demonstrate effective aqueous medium. The thermal conductivity and thermal conductivity enhancement efficiency of 3D-GS-CBF (0.26 vol%) aqueous medium can be as high as 2.61 W m−1 K−1 and 1300%, respectively, around six times larger than highest value of the existed aqueous mediums. Meanwhile, 3D-GS-CBF can be stable in the solution even after 6 months, addressing the instability issues of conventional graphene networks. A multiscale modeling including non-equilibrium molecular dynamics simulations and heat conduction model is applied to interpret experimental results. 3D-GS-CBF aqueous medium can largely improve the solar vapor evaporation rate (by 1.5 times) that are even comparable to the interfacial heating system; meanwhile, its cooling performance is also superior to commercial coolant in thermal management applications.

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Thermophysical performance of graphene based aqueous nanofluids

Cited by 48 publications

References 33 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

Assessment of Iron Oxide (III)–Therminol 66 Nanofluid as a Novel Working Fluid in a Convective Radiator Heating System for Buildings

Highly Thermo-Conductive Three-Dimensional Graphene Aqueous Medium

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