Convective performance of CuO/water nanofluid in an electronic heat sink

Selvakumar, P.; Suresh, S.

doi:10.1016/j.expthermflusci.2012.01.033

Cited by 166 publications

(58 citation statements)

References 20 publications

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“…The miniaturization and ultra-high performance are two important features of high-end electronic devices. Thermal management of electronic components has gained a lot of attention due to the drastic increase in power density, compactness and enhancement in computation speeds leading to high heat fluxes [1][2][3]. But the current techniques are not adequate to cater the thermal management needs of these compact and high-power density devices.…”

Section: Introductionmentioning

confidence: 99%

Effect of volume concentration and temperature on viscosity and surface tension of graphene–water nanofluid for heat transfer applications

Ahammed

Asirvatham

Wongwises

2015

J Therm Anal Calorim

168

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In the present study, the effect of volume concentration (0.05, 0.1 and 0.15 %) and temperature (10-90°C) on viscosity and surface tension of graphene-water nanofluid has been experimentally measured. The sodium dodecyl benzene sulfonate is used as the surfactant for stable suspension of graphene. The results showed that the viscosity of graphene-water nanofluid increases with an increase in the volume concentration of nanoparticles and decreases with an increase in temperature. An average enhancement of 47.12 % in viscosity has been noted for 0.15 % volume concentration of graphene at 50°C. The enhancement of the viscosity of the nanofluid at higher volume concentration is due to the higher shear rate. In contrast, the surface tension of the graphenewater nanofluid decreases with an increase in both volume concentration and temperature. A decrement of 18.7 % in surface tension has been noted for the same volume concentration and temperature. The surface tension reduction in nanofluid at higher volume concentrations is due to the adsorption of nanoparticles at the liquid-gas interface because of hydrophobic nature of graphene; and at higher temperatures, is due to the weakening of molecular attractions between fluid molecules and nanoparticles. The viscosity and surface tension showed stronger dependency on volume concentration than temperature. Based on the calculated effectiveness of graphene-water nanofluids, it is suggested that the graphene-water nanofluid is preferable as the better coolant for the real-time heat transfer applications.

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Section: Introductionmentioning

confidence: 99%

Effect of volume concentration and temperature on viscosity and surface tension of graphene–water nanofluid for heat transfer applications

Ahammed

Asirvatham

Wongwises

2015

J Therm Anal Calorim

168

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“…They observed that 0.1 vol% of nanofluid negatively affects the heat transfer coefficient unless an appropriate surfactant is used. Selvakumar and Suresh [26] measured the convective heat transfer coefficient of CuO/water nanofluid in an electronic heat sink. They found that the convective heat transfer coefficient of nanofluid increased with increasing flow rate and nanofluid concentration in the turbulent flow.…”

Section: Introductionmentioning

confidence: 99%

Local convective heat transfer coefficient and friction factor of CuO/water nanofluid in a microchannel heat sink

et al. 2016

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“…Compared to base oil flow, maximum heat transfer enhancement of 18.7% and 30.4% was obtained for nanofluid flow with 2% weight concentration inside the straight tube and helical tube, respectively. Selvakumar and Suresh (2012) showed the performance of convective heat transfer of aqueous nanofluid in an electronic heat sink. As volume flow rate and nanoparticles volume concentration increases, the convective heat transfer coefficient of water block was found to be increased and the maximum rise was 29.63% for the 0.2% volume concentration compared to deionized water.…”

Section: Experimental Studies On Forced Convective Heat Transfer Of Nmentioning

confidence: 99%

A comprehensive review of experimental investigations of forced convective heat transfer characteristics for various nanofluids

Gupta

Arora

Kumar

et al. 2014

Int J Mech Mater Eng

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Nanofluids are suspension of nanoparticles (less than 100 nm) in the conventional base fluids. The dispersed solid metallic or non-metallic nanoparticles change the thermal properties like thermal conductivity, viscosity, specific heat, and density of the base fluid. Past studies focused on measuring the thermal properties of nanofluids. These suspended nanoparticles effectively improve the transport properties and heat transfer characteristics of the base fluids. Recently, heat transfer augmentation using suspensions of nanometre-sized solid particles in base liquids have been investigated by various research groups across the world. This paper reviews the state-of-the-art nanofluid studies in the area of forced convection heat transfer enhancement. The results for the heat transfer characteristics in internal flow with constant heat flux and constant wall temperature boundary conditions reported by various researchers have been compiled and reviewed. Further, in heat exchangers, the real boundary conditions are different from the constant heat flux and constant wall temperature boundary conditions. Over a span of 2 decades, the literature in this field is widespread; hence, this review would be useful for researchers to have a precise screening of a wide range of investigations in this area.

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Convective performance of CuO/water nanofluid in an electronic heat sink

Cited by 166 publications

References 20 publications

Effect of volume concentration and temperature on viscosity and surface tension of graphene–water nanofluid for heat transfer applications

Effect of volume concentration and temperature on viscosity and surface tension of graphene–water nanofluid for heat transfer applications

Local convective heat transfer coefficient and friction factor of CuO/water nanofluid in a microchannel heat sink

A comprehensive review of experimental investigations of forced convective heat transfer characteristics for various nanofluids

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