Comparative study on heat transfer characteristics of sintered and mesh wick heat pipes using CuO nanofluids

Kumaresan, G.; Venkatachalapathy, S.; Asirvatham, Lazarus Godson; Wongwises, Somchai

doi:10.1016/j.icheatmasstransfer.2014.08.001

Cited by 80 publications

(26 citation statements)

References 21 publications

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“…A thin nanoparticles sorption layer was also formed over the heating surfaces which increased the critical heat flux. Kumaresan et al [20] compared the thermal performance of sintered and mesh wick heat pipes using CuO nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Thermal characteristics studies on sintered wick heat pipe using CuO and Al2O3 nanofluids

Vijayakumar

Navaneethakrishnan²,

Kumaresan³

2016

Experimental Thermal and Fluid Science

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Section: Introductionmentioning

confidence: 99%

Thermal characteristics studies on sintered wick heat pipe using CuO and Al2O3 nanofluids

Vijayakumar

Navaneethakrishnan²,

Kumaresan³

2016

Experimental Thermal and Fluid Science

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“…Hence, in the present study, an attempt is made to determine the viscosity and surface tension of graphene-water nanofluid by suspending very low volume concentrations (0.05, 0.1 and 0.15 %) of graphene at temperatures below-and above-ambient conditions ranging from 10 to 90°C. The results will be useful in the design of heat exchangers and heat pipes that employ fluid flow and two-phase flow under a wide range of temperatures [38][39][40][41].…”

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

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165

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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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“…have attracted some more attention in recent years [10][11][12][13][14][15]. In addition, many review articles also have been published till date [16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Stability and enhanced thermal conductivity of ethylene glycol-based SiC nanofluids

Zou

Lei

et al. 2015

International Journal of Heat and Mass Transfer

114

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Comparative study on heat transfer characteristics of sintered and mesh wick heat pipes using CuO nanofluids

Cited by 80 publications

References 21 publications

Thermal characteristics studies on sintered wick heat pipe using CuO and Al2O3 nanofluids

Thermal characteristics studies on sintered wick heat pipe using CuO and Al2O3 nanofluids

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

Stability and enhanced thermal conductivity of ethylene glycol-based SiC nanofluids

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