An Evaluation of the Plitt and Lynch & Rao Models for the Hydrocyclones

  • M. A. Z. Coelho
  • R. A. Medronho
Chapter
Part of the Fluid Mechanics and Its Applications book series (FMIA, volume 12)

Abstract

The Plitt and Lynch & Rao empirical models are widely used for prediction of hydrocyclones performance. In this: work, these models were used to predict the performance of five different hydrocyclones: Rietema, Bradley, DEMCO, Mozley, and AKW. The cut size, the flowrate, and the feed liquid reporting to underflow predicted by Lynch & Rao model showed large errors in comparison with the experimental values. The same has occurred with the Plitt model, apart from the flow rate which showed a reasonable average error (± 13.5%).

Keywords

Feed Concentration Feed Flow Rate Total Efficiency Geometric Proportion Operate Condi Tions 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

Cv

Feed solid concentration by volume (per cent)

Cw

Feed solids concentration by weight (per cent)

d′50

Reduced cut size (μm)

Dc

Hydrocyclone body diameter (cm)

Di

Inlet equivalent diameter, by area (cm)

Do

Overflow diameter (cm)

Du

Underflow diameter (cm)

H

Pressure drop expressed in head of feed slurry (m)

L

Total length of hydrocyclone (cm)

ℓ

Vortex finder length (cm)

∆P

Pressure Drop (kPa)

Q

Volumetric flow rate of feed slurry (ℓ/min)

Rw

Recovery of feed liquid to the underflow

S

Underflow-to-overflow ratio (flow split)

W

Mass flow rate of the feed slurry (t/h)

μ

Liquid viscosity (cP)

ρ

Liquid density (g/cm3)

ρs

Solids density (g/cm3)

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References

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Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • M. A. Z. Coelho
  • R. A. Medronho
    • 1
  1. 1.Escola de Química/UFRJ, CT, Bloco EFederal University of Rio de JaneiroRio de JaneiroBrazil

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