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The Effect of Fine Flocculating Particles and Fine Inerts on Carrier Fluid Viscosity

  • Author / Creator
    Asadi Shahmirzadi, Azadeh
  • Design and maintenance of coarse-particle Newtonian slurries pipeline requires the knowledge of carrier fluid viscosity. Since measurements of carrier fluid viscosity are difficult, numerous empirical correlations are typically used to predict this value. The main deficiency of available correlations arises from the fact that the viscosity is predicted from the volume fraction of total fines. This approach neglects the different effects of various fines present in the suspensions (e.g., flocculating versus inert fines). In this study, idealized aqueous slurries consisting of inert silica (d ~ 20 μm) and flocculating kaolinite clay were tested. A novel optical-based particle size analysis technique (FPIA) was commissioned to study flocculating and inert fines and estimate volume fraction of aggregates. Experimental data suggest that viscosity correlations are improved significantly if the volume fraction of aggregates is used as the primary correlating parameter, rather than the more conventional use of total fine solids volume fraction.

  • Subjects / Keywords
  • Graduation date
    2012-09
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3RT5V
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Chemical and Materials Engineering
  • Specialization
    • Chemical Engineering
  • Supervisor / co-supervisor and their department(s)
    • Sanders, Sean (Chemical and Materials Engineering)
  • Examining committee members and their departments
    • Zhang, Hao (Chemical and Materials Engineering)
    • Nobes, David (Mechanical Engineering)
    • Yeung, Tony (Chemical and Materials Engineering)
    • Sanders, Sean (Chemical and Materials Engineering)