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Experimental Determination of the Effect of Varying the Base Fluid on Static Thermal Conductivity of Nanofluids

[+] Author Affiliations
S. Nara, P. Bhattacharya, P. Vijayan, W. Lai, W. Rosenthal, P. E. Phelan

Arizona State University

R. S. Prasher, D. W. Song, J. Wang

Intel Corporation

Paper No. IMECE2005-81494, pp. 755-758; 4 pages
doi:10.1115/IMECE2005-81494
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part A
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4221-5 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

The heat transfer abilities of fluids can be improved by adding small particles of sizes of the order of nanometers. Recently a lot of research has been done in evaluating the thermal conductivity of nanofluids using various nanoparticles. In our present work we address this issue by conducting a series of experiments to determine the effective thermal conductivity of alumina-nanofluids by varying the base fluid with water and antifreeze liquids like ethylene glycol and propylene glycol. Temperature oscillation method is used to find the thermal conductivity of the nanofluid. The results show the thermal conductivity enhancement of nanofluids depends on viscosity of the base fluid. Finally the results are validated with a recently proposed theoretical model.

Copyright © 2005 by ASME

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