Volume fraction and temperature variations of the effective thermal conductivity of nanodiamond fluids in deionized water

Yeganeh, M.; Shahtahmasebi, N.; Kompany, Ahmad; Goharshadi, Elaheh Kafshdare; Youssefi, A.; Šiller, Lidija

doi:10.1016/j.ijheatmasstransfer.2010.03.008

Cited by 94 publications

(63 citation statements)

References 56 publications

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“…Thermalconductivity was calculated as k = ρ nf l C p,nf l D T using the data and models for specific heat and density discussed above. The results show a 3 to 7 % increase in thermal conductivity, which is in rather good agreement with the previous data [19][20][21]. Satisfactory precision of measurements should be specially mentioned.…”

Section: Resultssupporting

confidence: 91%

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Usoltseva¹,

Volkov²,

Авраменко³

et al. 2018

Nanosystems: Phys. Chem. Math.

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Thermal-lens spectrometry was used to characterize thermal diffusivity and thermal conductivity of aqueous nanodiamond dispersions at the level of mg/mL, accompanied by heat capacity, density, and viscosity measurements and modelling. The data from thermal lensing corresponding to thermal equilibrium show 3 -7 % increase in thermal conductivity of the studied dispersions, show good precision and agree with the existing data.

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Section: Resultssupporting

confidence: 91%

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Usoltseva¹,

Volkov²,

Авраменко³

et al. 2018

Nanosystems: Phys. Chem. Math.

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“…The structure and chemical composition of DNDs strongly influence their mechanical, optical, electrical, and thermal properties [14][15][16][17][18]. One prominent example is the nitrogen doping which plays an important role in the fluorescence of the DNDs [19].…”

Section: Introductionmentioning

confidence: 99%

On the relation between chemical composition and optical properties of detonation nanodiamonds

Kirmani

Peng

Mahfouz

et al. 2015

Carbon

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a b s t r a c tThe morphology and presence of impurities strongly influence mechanical, optical, electrical, and thermal properties of detonation nanodiamonds (DNDs). Here we report insights on the chemical composition and its effect on the optical properties of the DNDs obtained by rate-zonal density gradient ultracentrifugation. Herein, for the first time, a detailed valence band structure of as-prepared and oxidized DNDs is reported. Photoemission spectroscopy (PES) measurements demonstrate that the defects, originating from fullerene-like C bonding in the sp 2 shells of the DNDs, are governing the literature-reported loss of the emission spectral features arising from the nitrogen-vacancy (NV) center excitations. X-ray photoelectron spectroscopy (XPS) measurements reveal that nitrogen is present in the DNDs in the form of N-O bonded species located at the surface region/sp 2 shells, while in core of the DND it is in the form of N-C/N@C species.

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“…There is a lack of reported research on hybrid combined models for the effective thermal conductivity that takes into consideration all major mechanisms plus other important recognized effects like particle settling down time [75][76][77][78], temperature [79], pH [80][81][82], dispersion [83] and the particle size effect on surface contact of liquid/particle interaction [41,[84][85][86]. However, the following models are valuable because they included some of these effects.…”

Section: Hybrid Model and Other Effectsmentioning

confidence: 99%

A Review of Thermal Conductivity Models for Nanofluids

Aybar

Sharifpur

Azizian

et al. 2015

Heat Transfer Engineering

200

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Volume fraction and temperature variations of the effective thermal conductivity of nanodiamond fluids in deionized water

Cited by 94 publications

References 56 publications

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

On the relation between chemical composition and optical properties of detonation nanodiamonds

A Review of Thermal Conductivity Models for Nanofluids

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