Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-18T04:29:44.720Z Has data issue: false hasContentIssue false

Enhanced Thermal Conductivity through the Development of Nanofluids

Published online by Cambridge University Press:  10 February 2011

J. A. Eastman
Affiliation:
Materials Science Division, Argonne National Laboratory, 9700 S.Cass Ave., Bldg. 212, Argonne, IL 60439 (JEastman@ANL.GOV)
U. S. Choi
Affiliation:
Energy Technology Division, Argonne National Laboratory, 9700 S.Cass Ave., Bldg. 212, Argonne, IL 60439
S. Li
Affiliation:
Materials Science Division, Argonne National Laboratory, 9700 S.Cass Ave., Bldg. 212, Argonne, IL 60439
L. J. Thompson
Affiliation:
Materials Science Division, Argonne National Laboratory, 9700 S.Cass Ave., Bldg. 212, Argonne, IL 60439
S. Lee
Affiliation:
Energy Technology Division, Argonne National Laboratory, 9700 S.Cass Ave., Bldg. 212, Argonne, IL 60439
Get access

Abstract

Low thermal conductivity is a primary limitation in the development of energy-efficient heat transfer fluids required in many industrial applications. To overcome this limitation, a new class of heat transfer fluids is being developed by suspending nanocry stalline particles in liquids such as water or oil. The resulting “nanofluids” possess extremely high thermal conductivities compared to the liquids without dispersed nanocrystalline particles. For example, 5 volume % of nanocrystalline copper oxide particles suspended in water results in an improvement in thermal conductivity of almost 60% compared to water without nanoparticles. Excellent suspension properties are also observed, with no significant settling of nanocrystalline oxide particles occurring in stationary fluids over time periods longer than several days. Direct evaporation of Cu nano-particles into pump oil results in similar improvements in thermal conductivity compared to oxide-in-water systems, but importantly, requires far smaller concentrations of dispersed nanocrystalline powder.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Maxwell, J.C., A Treatise on Electricity and Magnetism, 2nd Ed., 1, 435, Clarendon Press (1881).Google Scholar
2. Hamilton, R.L. and Crosser, O.K., I and EC Fundamentals, 1, no. 3, 187 (1962).Google Scholar
3. Choi, U.S., in Developments and Applications of Non-Newtonian Flows, eds. Signier, D.A. and Wang, H.P., (American Society of Mechanical Engineers: New York), Vol. 231/MD-Vol. 66, 99 (1995).Google Scholar
4. Granqvist, C. G. and Buhrman, R.A., J. Appl. Phys., 47, 2200 (1976).Google Scholar
5. Nanophase Technologies Corporation, Burr Ridge, ILGoogle Scholar
6. Yatsuya, S., Tsukasaki, Y., Mihama, K., and Uyeda, R., J. Cryst. Growth, 43, 490 (1978).Google Scholar
7. Wagener, M. and Günther, B., these proceedings.Google Scholar
8. HE-200, produced by Leybold-Heraeus Vacuum Products Inc., Export, PA Duo-Seal #1407K-11, produced by Welch Vacuum Technology Inc., Skokie, IL.Google Scholar
9 Eastman, J.A., Thompson, L.J., and Marshall, D.J., Nanostruct. Mater. 2, 377 (1993).Google Scholar