Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles

Haifeng Jiang; Qianghui Xu; Chao Huang; Lin Shi

doi:10.1016/j.partic.2014.10.010

Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles

Haifeng Jiang, Qianghui Xu, Chao Huang, Lin Shi^*

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

Abstract Nanofluids were prepared by dispersing Cu nanoparticles (∼20 nm) in n-tetradecane by a two-step method. The effective thermal conductivity was measured for various nanoparticle volume fractions (0.0001-0.02) and temperatures (306.22-452.66 K). The experimental data compares well with the Jang and Choi model. The thermal conductivity enhancement was lower above 391.06 K than for that between 306.22 and 360.77 K. The interfacial thermal resistance increased with increasing temperature. The effective thermal conductivity enhancement was greater than that obtained with a more viscous fluid as the base media at 452.66 K because of nanoconvection induced by nanoparticle Brownian motion at high temperature.

Original language	English
Pages (from-to)	95-99
Number of pages	5
Journal	Particuology
Volume	22
DOIs	https://doi.org/10.1016/j.partic.2014.10.010
Publication status	Published - 1 Oct 2015
Externally published	Yes

Keywords

Brownian motion
High temperature
Nanofluid
Thermal conductivity

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10.1016/j.partic.2014.10.010

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title = "Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles",

abstract = "Abstract Nanofluids were prepared by dispersing Cu nanoparticles (∼20 nm) in n-tetradecane by a two-step method. The effective thermal conductivity was measured for various nanoparticle volume fractions (0.0001-0.02) and temperatures (306.22-452.66 K). The experimental data compares well with the Jang and Choi model. The thermal conductivity enhancement was lower above 391.06 K than for that between 306.22 and 360.77 K. The interfacial thermal resistance increased with increasing temperature. The effective thermal conductivity enhancement was greater than that obtained with a more viscous fluid as the base media at 452.66 K because of nanoconvection induced by nanoparticle Brownian motion at high temperature.",

keywords = "Brownian motion, High temperature, Nanofluid, Thermal conductivity",

author = "Haifeng Jiang and Qianghui Xu and Chao Huang and Lin Shi",

note = "Publisher Copyright: {\textcopyright} 2015 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.",

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T1 - Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles

AU - Jiang, Haifeng

AU - Xu, Qianghui

AU - Huang, Chao

AU - Shi, Lin

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Abstract Nanofluids were prepared by dispersing Cu nanoparticles (∼20 nm) in n-tetradecane by a two-step method. The effective thermal conductivity was measured for various nanoparticle volume fractions (0.0001-0.02) and temperatures (306.22-452.66 K). The experimental data compares well with the Jang and Choi model. The thermal conductivity enhancement was lower above 391.06 K than for that between 306.22 and 360.77 K. The interfacial thermal resistance increased with increasing temperature. The effective thermal conductivity enhancement was greater than that obtained with a more viscous fluid as the base media at 452.66 K because of nanoconvection induced by nanoparticle Brownian motion at high temperature.

AB - Abstract Nanofluids were prepared by dispersing Cu nanoparticles (∼20 nm) in n-tetradecane by a two-step method. The effective thermal conductivity was measured for various nanoparticle volume fractions (0.0001-0.02) and temperatures (306.22-452.66 K). The experimental data compares well with the Jang and Choi model. The thermal conductivity enhancement was lower above 391.06 K than for that between 306.22 and 360.77 K. The interfacial thermal resistance increased with increasing temperature. The effective thermal conductivity enhancement was greater than that obtained with a more viscous fluid as the base media at 452.66 K because of nanoconvection induced by nanoparticle Brownian motion at high temperature.

KW - Brownian motion

KW - High temperature

KW - Nanofluid

KW - Thermal conductivity

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DO - 10.1016/j.partic.2014.10.010

M3 - Article

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SN - 1674-2001

VL - 22

SP - 95

EP - 99

JO - Particuology

JF - Particuology

ER -

Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles

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Keywords

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