• 文献标题:   A novel comparative experimental study on rheological behavior of mono & hybrid nanofluids concerned graphene and silica nano-powders: Characterization, stability and viscosity measurements
  • 文献类型:   Article
  • 作  者:   KAZEMI I, SEFID M, AFRAND M
  • 作者关键词:   silica graphene nanoadditive, mononanofluid, hybridnanolluid, ph value, viscosity, rheological behavior
  • 出版物名称:   POWDER TECHNOLOGY
  • ISSN:   0032-5910 EI 1873-328X
  • 通讯作者地址:   Yazd Univ
  • 被引频次:   8
  • DOI:   10.1016/j.powtec.2020.02.010
  • 出版年:   2020

▎ 摘  要

This paper explores a hybrid- and two mono-nanofluids and, to be more specific, it deals with the effect of adding Silica (SiO2) and Graphene (G) nanoparticles and their hybrid (G (30%) + SiO2 (70%)) on viscosity of water. For all designed hybrid- and mono-nanofluids at various concentrations of 0.05-1%, viscosity was measured under the influence of temperature (25-50 degrees C). Meanwhile, for measuring the viscosity, different shear rates (12.23-122.3 s(-1)) have been applied to evaluate theological behavior of nanofluids. The viscosity of hybrid nanofluids lies between the viscosity of mono nanofluids, while G/Water mono-nanofluid samples have the highest value. Experimental results revealed non-Newtonian pseudoplastic behavior for all three types of nanofluids, this behavior is more evident in the G/Water mono-nanofluid. Moreover. G-SiO2 (30-70%)/Water hybrid nanofluid has a higher tendency to the behavior of SiO2/Water mono-nanofluid. Finally, via curve fitting method, two-variable correlations were proposed to estimate rheological behavior of G-SiO2 (30-70%)/Water hybrid nanofluid. (C) 2020 Published by Elsevier B.V.