Authors: Bernal, L; Rayo, J; Fuentes, R

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Bernal, L, Rayo, J & Fuentes, R 2009, 'Influence of Adverse Slope on Head Loss in a Pipeline Conveying High Concentration Slurry', in R Jewell, AB Fourie, S Barrera & J Wiertz (eds), Paste 2009: Proceedings of the Twelfth International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 179-184,

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Theoretical, steady state, incompressible, one-dimensional analysis has been done for the head loss in an inclined pipeline conveying a suspension of liquid and particles. Values of head loss for a high concentration copper tailings slurry have been obtained from an ad hoc experimental rig (concentration up to 42%Cv (solids by volume), adverse (positive slope) of 8%). Measured data permits the calculation of the ratio Z, defined as the head loss of mixture for a θ angle /head loss of mixture for θ = 0. This ratio yields a value of 1.11 with a standard deviation σZ = 0.04.

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184 Paste 2009, Viña del Mar, Chile

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