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Centrifugal pump performance calculation for homogeneous suspensions
Author(s) -
Graham L. J. W.,
Pullum L.,
Slatter P.,
Sery G.,
Rudman M.
Publication year - 2009
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20192
Subject(s) - rheology , centrifugal pump , slurry , non newtonian fluid , head (geology) , homogeneous , bingham plastic , viscosity , newtonian fluid , hydraulic head , mechanics , materials science , mechanical engineering , thermodynamics , impeller , engineering , composite material , geology , physics , geomorphology
Centrifugal pumps are widely used for transporting suspensions, but their head performance is derated when non‐Newtonian fluids and/or coarse solids are present. Some head deration methods are available for high viscosity Newtonian fluids, Bingham plastic fluids and for coarse solids in water. This paper presents a modification of the Hydraulic Institute head deration method that is suitable for any homogeneous non‐Newtonian rheology. A modification of the Walker and Goulas method is also considered. Possible anomalous behaviour of kaolin slurries in centrifugal pumps is discussed.