Sery, G, , Kabamba, B & Slatter, P 2006, 'Paste Pumping with Centrifugal Pumps: Evaluation of the Hydraulic Institute Chart De-Rating Procedures', in R Jewell, S Lawson & P Newman (eds), Proceedings of the Ninth International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 403-412, https://doi.org/10.36487/ACG_repo/663_35
Walker and Goulas have suggested that the Hydraulic Institute Chart, primarily meant for centrifugal pump
performance prediction for Newtonian materials with a known viscosity, be extended to non-Newtonian
slurries. The performance correction must make use of an apparent viscosity calculated at a shear rate of 2
( being the impeller angular speed) for low flow rates, and for high flow rates at a shear rate between 100-
1500 s-1. This is considered ambiguous. The present work calculates an apparent viscosity from a pump
impeller average shear rate determined using the Metzner and Otto method and evaluates the accuracy of the
Hydraulic Institute Chart in pump performance predictions for non-Newtonian materials.
Angle, T. and Crisswell, J. (1997) Envirotech Pump System: Slurry pump manual, Envirotech.
Brito-De la Fuente, E., Leuliet, J.C., Choplin, L. and Tanguy, P. (1992) On the effect of shear-thinning behaviour on mixing with
helical ribbon impeller. Chemical and Biochemical Applications, G. Tatterson and R. Calabrese Eds., pp. 28.
Brito-De la Fuente, E., Choplin, L. and Tanguy, P. (1997) Mixing with helical ribbon impeller: Effect of highly Shear Thinning
Behaviour and Impeller Geometry. Trans IChemE, Vol 75, Part A.
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Rieger, F. and Novak, V. (1973) Power consumption of agitators in highly viscous non-Newtonian fluids. Chem. Engrs, 51, pp. 105-
Slatter, P..T. (2005) Tailings transport – back to basics!, Invited keynote address, Paste 2005, International Seminar on Paste and
Thickened Tailings, Santiago, Chile 20-22 April, 2005, pp. 165-176.
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Inst. Mech. Engrs., 198A(1), pp. 41-49.