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Viscosity and Specific Volume of TiO2/Water Nanofluid
Nanofluids are engineered liquid suspensions containing nanometer-sized particles and have been found to have great potential to deliver as effective heat transfer fluids. Interaction between nanoparticles in nanofluids can induce structuring of the particles thereby modifying the transport properti...
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Published in: | Journal of nanofluids 2012-12, Vol.1 (2), p.161-165 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Nanofluids are engineered liquid suspensions containing nanometer-sized particles and have been found to have great potential to deliver as effective heat transfer fluids. Interaction between nanoparticles in nanofluids can induce structuring of the particles thereby modifying the transport
properties of base fluid. In this study viscometric and volumetric behavior of anatase titanium dioxide (TiO2) nanoparticles dispersed in pure water have been investigated over a range of volumetric solid concentrations ( = 0.5-2.5%) and temperatures (T = 10-40
°C). Relative viscosity of the nanofluid (μnf/μbf) exhibited an exponential rise with and Arrhenius law was followed with rise in temperature. The combined effect of and T on relative viscosity of the nanofluid was well represented by μnf/μbf
= 2.924exp[0.136 - 316.06/T]. A maximum of 50% rise in viscosity for 2.5 vol% TiO2-water nanofluid was observed. Further, for TiO2-water nanofluid, specific volume data followed the additive rule for dispersed liquids. |
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ISSN: | 2169-432X 2169-4338 |
DOI: | 10.1166/jon.2012.1021 |