Rheological and thermophysical properties of ultra-stable kerosene-based Fe3O4/Graphene nanofluids for energy conservation
作者： M. Koolivand-Salookic S. Askaria , R. Lotfia , b , ,
DOI: 10.1016/J.ENCONMAN.2016.09.037
关键词:
摘要: Abstract This research deals with a novel synthesis method for preparation of Fe3O4 decorated Graphene and its application as kerosene-based nanofluid the purpose heat transfer enhancement. In order to stabilize Graphene-Fe3O4 nanoparticles, oleic acid was grafted on surface nanoparticles by chemisorption. Synthesized nanohybrid characterized X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), Dynamic light scattering (DLS) UV–Vis spectrophotometer. The remains stable more than five months without any sedimentation. Moreover, rheological thermal properties nanofluids were measured. Viscosity increment, especially in low concentrations negligible enough industrial applications density enhancement is completely even high concentrations. conductivity improved 31% at 50 °C, compared base fluid. examine convective enhancement, an experimental setup designed measurements examined Reynolds numbers between 2166 4553. maximum 66% number 4553 0.3 wt.% nanoparticle. Increase particles loading causes coefficient improve.
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