Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid

J. Garg; B. Poudel; M. Chiesa; J. B. Gordon; J. J. Ma; J. B. Wang; Z. F. Ren; Y. T. Kang; H. Ohtani; J. Nanda; G. H. McKinley; G. Chen

doi:10.1063/1.2902483

Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid

J. Garg, B. Poudel, M. Chiesa, J. B. Gordon, J. J. Ma, J. B. Wang, Z. F. Ren, Y. T. Kang, H. Ohtani, J. Nanda, G. H. McKinley, G. Chen

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

403 Citations (Scopus)

Abstract

This study investigates the thermal conductivity and viscosity of copper nanoparticles in ethylene glycol. The nanofluid was prepared by synthesizing copper nanoparticles using a chemical reduction method, with water as the solvent, and then dispersing them in ethylene glycol using a sonicator. Volume loadings of up to 2% were prepared. The measured increase in thermal conductivity was twice the value predicted by the Maxwell effective medium theory. The increase in viscosity was about four times of that predicted by the Einstein law of viscosity. Analytical calculations suggest that this nanofluid would not be beneficial as a coolant in heat exchangers without changing the tube diameter. However, increasing the tube diameter to exploit the increased thermal conductivity of the nanofluid can lead to better thermal performance.

Original language	English
Article number	074301
Journal	Journal of Applied Physics
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.2902483
Publication status	Published - 2008
Externally published	Yes

Bibliographical note

Funding Information:
The authors would like to acknowledge Professor Alan Hatton, Tatsushi Isojima, and Saurabh Tejwani for their insightful comments and suggestions during the course of this work. The authors wish to acknowledge Ford Motor Company for supporting this work. The work performed at Boston College is supported by NSF NIRT 0506830.

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2902483

Cite this

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title = "Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid",

abstract = "This study investigates the thermal conductivity and viscosity of copper nanoparticles in ethylene glycol. The nanofluid was prepared by synthesizing copper nanoparticles using a chemical reduction method, with water as the solvent, and then dispersing them in ethylene glycol using a sonicator. Volume loadings of up to 2% were prepared. The measured increase in thermal conductivity was twice the value predicted by the Maxwell effective medium theory. The increase in viscosity was about four times of that predicted by the Einstein law of viscosity. Analytical calculations suggest that this nanofluid would not be beneficial as a coolant in heat exchangers without changing the tube diameter. However, increasing the tube diameter to exploit the increased thermal conductivity of the nanofluid can lead to better thermal performance.",

author = "J. Garg and B. Poudel and M. Chiesa and Gordon, {J. B.} and Ma, {J. J.} and Wang, {J. B.} and Ren, {Z. F.} and Kang, {Y. T.} and H. Ohtani and J. Nanda and McKinley, {G. H.} and G. Chen",

note = "Funding Information: The authors would like to acknowledge Professor Alan Hatton, Tatsushi Isojima, and Saurabh Tejwani for their insightful comments and suggestions during the course of this work. The authors wish to acknowledge Ford Motor Company for supporting this work. The work performed at Boston College is supported by NSF NIRT 0506830. ",

year = "2008",

doi = "10.1063/1.2902483",

language = "English",

volume = "103",

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T1 - Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid

AU - Garg, J.

AU - Poudel, B.

AU - Chiesa, M.

AU - Gordon, J. B.

AU - Ma, J. J.

AU - Wang, J. B.

AU - Ren, Z. F.

AU - Kang, Y. T.

AU - Ohtani, H.

AU - Nanda, J.

AU - McKinley, G. H.

AU - Chen, G.

N1 - Funding Information: The authors would like to acknowledge Professor Alan Hatton, Tatsushi Isojima, and Saurabh Tejwani for their insightful comments and suggestions during the course of this work. The authors wish to acknowledge Ford Motor Company for supporting this work. The work performed at Boston College is supported by NSF NIRT 0506830.

PY - 2008

Y1 - 2008

N2 - This study investigates the thermal conductivity and viscosity of copper nanoparticles in ethylene glycol. The nanofluid was prepared by synthesizing copper nanoparticles using a chemical reduction method, with water as the solvent, and then dispersing them in ethylene glycol using a sonicator. Volume loadings of up to 2% were prepared. The measured increase in thermal conductivity was twice the value predicted by the Maxwell effective medium theory. The increase in viscosity was about four times of that predicted by the Einstein law of viscosity. Analytical calculations suggest that this nanofluid would not be beneficial as a coolant in heat exchangers without changing the tube diameter. However, increasing the tube diameter to exploit the increased thermal conductivity of the nanofluid can lead to better thermal performance.

AB - This study investigates the thermal conductivity and viscosity of copper nanoparticles in ethylene glycol. The nanofluid was prepared by synthesizing copper nanoparticles using a chemical reduction method, with water as the solvent, and then dispersing them in ethylene glycol using a sonicator. Volume loadings of up to 2% were prepared. The measured increase in thermal conductivity was twice the value predicted by the Maxwell effective medium theory. The increase in viscosity was about four times of that predicted by the Einstein law of viscosity. Analytical calculations suggest that this nanofluid would not be beneficial as a coolant in heat exchangers without changing the tube diameter. However, increasing the tube diameter to exploit the increased thermal conductivity of the nanofluid can lead to better thermal performance.

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ER -

Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid

Abstract

Bibliographical note

ASJC Scopus subject areas

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