Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles

J. A. Eastman; S. U.-S. Choi; S. Li; W. Yu; L. J. Thompson

doi:10.1063/1.1341218

journal article Feb 05, 2001

Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles

J. A. Eastman S. U.-S. Choi S. Li

W. Yu

L. J. Thompson

Applied Physics Letters Vol. 78 No. 6 pp. 718-720 · AIP Publishing

View at Publisher Save 10.1063/1.1341218

Abstract

It is shown that a “nanofluid” consisting of copper nanometer-sized particles dispersed in ethylene glycol has a much higher effective thermal conductivity than either pure ethylene glycol or ethylene glycol containing the same volume fraction of dispersed oxide nanoparticles. The effective thermal conductivity of ethylene glycol is shown to be increased by up to 40% for a nanofluid consisting of ethylene glycol containing approximately 0.3 vol % Cu nanoparticles of mean diameter &lt;10 nm. The results are anomalous based on previous theoretical calculations that had predicted a strong effect of particle shape on effective nanofluid thermal conductivity, but no effect of either particle size or particle thermal conductivity.

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References

Details

Published: Feb 05, 2001
Vol/Issue: 78(6)
Pages: 718-720

Authors

J

J. A. Eastman

Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439

S

S. U.-S. Choi

Energy Technology Division, Argonne National Laboratory, Argonne, Illinois 60439

S

S. Li

Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439

W

W. Yu

Energy Technology Division, Argonne National Laboratory, Argonne, Illinois 60439

L

L. J. Thompson

Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439

Cite This Article

J. A. Eastman, S. U.-S. Choi, S. Li, et al. (2001). Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles. Applied Physics Letters, 78(6), 718-720. https://doi.org/10.1063/1.1341218

Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles

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