Effect of temperature on rheological properties of copper oxide nanoparticles dispersed in propylene glycol and water mixture.
This paper reports on experimental investigation of the rheological behavior of copper oxide nanoparticles dispersed in a 60:40 propylene glycol and water mixture. Nanofluids of a particle volume concentration from 0 to 6% have been tested in this study. The experiments were conducted over a temperature range of -35 degrees C to 50 degrees C to establish their behavior for use as a heat transfer fluid in cold climates. The experiments reveal that this nanofluid in the range of particle volume percentage tested exhibits a Newtonian behavior. A new exponential correlation has been developed from the experimental data, which expresses the viscosity as a function of particle volume percent and the temperature of the nanofluid. The slope of relative viscosity curve was found to be higher at lower temperatures.
Department of Mechanical Engineering, University of Alaska Fairbanks, P. 0. Box 755905, Fairbanks, AK 99775-5905, USA.
Devdatta P
DP
Kulkarni
Debendra K
DK
Das
Shirish L
SL
Patil
D003102:Colloids / Q000737:chemistry*; D045424:Complex Mixtures / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D044085:Microfluidics / Q000379:methods*; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D019946:Propylene Glycol / Q000737:chemistry*; D012996:Solutions; D013499:Surface Properties; D013696:Temperature; D014783:Viscosity; D014867:Water / Q000737:chemistry*
D003102:Colloids; D045424:Complex Mixtures; D046911:Macromolecular Substances; D012996:Solutions; D014867:Water; D019946:Propylene Glycol; D003300:Copper; C030973:cupric oxide