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Particle shape effect on the viscosity and thermal conductivity of ZnO nanofluids.

Author(s) : JEONG J., LI C., KWON Y., et al.

Type of article: Article, IJR article

Summary

The viscosity and thermal conductivity of ZnO nanofluids with nanoparticle shapes of nearly rectangular and of sphere, were experimentally investigated under various volume concentrations of the nanoparticles, ranging from 0.05 to 5.0 vol.%. The viscosity of the nanofluids increased with increases in the volume concentration by up to 69%. In addition, the enhancement of the viscosity of the nearly rectangular shape nanoparticles was found to be greater by 7.7%, than that of the spherical nanoparticles. The thermal conductivity of the ZnO nanofluids increased by up to 12% and 18% at 5.0 vol.% for the spherical and the nearly rectangular shape nanoparticles, respectively, compared to that of the base fluid (water). The shape of the particles is found to have a significant effect on the viscosity and thermal conductivity enhancements.

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Pages: 2233-2241

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Details

  • Original title: Particle shape effect on the viscosity and thermal conductivity of ZnO nanofluids.
  • Record ID : 30009833
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 8
  • Publication date: 2013/12

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