Preparation and Thermo-Physical Properties of Fe2O3-Propylene Glycol Nanofluids.
Iron oxide (Fe2O3) nanoparticles were prepared from ferric chloride and ferrous sulphate by precipitation reaction. Fe2O3-propylene glycol nanofluid was prepared by dispersing Fe2O3 nanoparticles in propylene glycol through stirred bead milling, shear homogenization and probe ultrasonication. The nanofluid was characterized through measurement of viscosity, particle size distribution and thermal conductivity. The interactions between Fe2O3 nanoparticles and propylene glycol on the nanoparticle surfaces lead to reduction in viscosity, the magnitude of which increases with nanoparticle concentration (0-2 vol%) at room temperature. The thermal conductivity enhancement for 2 vol% nanofluid was about 21% at room temperature, with liquid layering being the major contributor for thermal conductivity enhancement.
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Shylaja
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Manikandan
K S
KS
Suganthi
K S
KS
Rajan
D003460:Crystallization / Q000379:methods; D005290:Ferric Compounds / Q000737:chemistry*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D019946:Propylene Glycol / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013696:Temperature; D013814:Thermal Conductivity; D014783:Viscosity
D005290:Ferric Compounds; D012996:Solutions; C000499:ferric oxide; D019946:Propylene Glycol