Paste Pumping with Centrifugal Pumps: Evaluation of the Hydraulic Institute Chart De-Rating Procedures

Authors: Sery, G;; Kabamba, B; Slatter, P Download Paper

DOI https://doi.org/10.36487/ACG_repo/663_35

Cite As:
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), Paste 2006: 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



Abstract:
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.

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