TITLE

Effect of viscosity of base fluid on thermal conductivity of nanofluids

AUTHOR(S)
Tsung-Han Tsai; Long-Sheng Kuo; Ping-Hei Chen; Chin-Ting Yang
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/8/2008, Vol. 93 Issue 23, p233121
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This study aims to investigate the effect of viscosity of the base fluid on the thermal conductivity of nanofluids in which Fe3O4 nanoparticles are suspended in the base fluid composed of diesel oil and polydimethylsiloxane. Viscosity of the base fluid is varied by changing the volumetric fractions between both fluids. The measured thermal conductivity of nanofluids gradually approaches the value predicted by the Maxwell equation by increasing the viscosity. It demonstrates that the viscosity of nanofluids does affect the thermal conductivity of nanofluids, and the Brownian motion of suspended particles could be an important factor that enhances the thermal conductivity of nanofluids.
ACCESSION #
35886495

 

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