0

Full Content is available to subscribers

Subscribe/Learn More  >

Rheological Study of Y2O3 Nanofluids

[+] Author Affiliations
Waka Tesfai, Pawan K. Singh, Salim J. S. Masharqa, Matteo Chiesa, Youssef Shatilla

Masdar Institute of Science and Technology, Abu Dhabi, UAE

Paper No. IMECE2011-64720, pp. 255-261; 7 pages
doi:10.1115/IMECE2011-64720
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5492-1
  • Copyright © 2011 by ASME

abstract

This paper investigates the effects of shear rate and temperature on rheological behavior of Yttria (Y2 O3 ) based nanofluids experimentally. These nanofluids are potentially useful in high electric field and high temperature environment as well as for nuclear applications. The nanofluids are prepared by two step method. The particle size of nanofluids is characterized by electro-acoustic spectroscopy. Rheology measurements of these nanofluids show typical Newtonian behavior for several volume fractions of Yttria for shear rates above 1s−1 . Below 1s−1 shear rate the nanofluids show shear thinning behavior that depends on particles concentration. Generally, the effective viscosity of Yttria nanofluids is found to increase linearly up to 44% with particle loading of 5 vol%. The viscosity of these nanofluids follows Arrhenius type relationship with temperature similar to the base fluid behavior. The relative viscosity of these nanofluids has a temperature dependence behavior which contradicts reported observations in literature and can be attributed to the contribution from particle-particle interaction at higher concentrations. This temperature dependence was more pronounced with an increase in concentrations, which indicates that the viscosity increment of nanofluids is not only governed by the base fluid temperature dependence.

Copyright © 2011 by ASME
Topics: Nanofluids

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In