TY - JOUR N2 - This paper deals with the effect of impeller shape on off-bottom particle suspension. On the basis of numerous suspension measurements, correlations are proposed for calculating the just-suspended impeller speed for a standard pitched four-blade turbine and three types of hydrofoil impellers produced by TECHMIX for several particle sizes and for a wide range of particle concentrations. The suspension efficiency of the tested impellers is compared with the efficiency of a standard pitched blade turbine on the basis of the power consumption required for off-bottom suspension of solid particles. It is shown that the standard pitched blade turbine needs highest power consumption, i.e. it exhibits less efficiency for particle suspension than hydrofoil impellers produced by TECHMIX. L1 - http://journals.pan.pl/Content/84838/PDF/11-paper-Rieger.pdf L2 - http://journals.pan.pl/Content/84838 PY - 2013 IS - No 1 March EP - 152 DO - 10.2478/cpe-2013-0012 KW - mixing KW - axial impeller KW - hydrofoil impeller KW - just-suspended impeller speed KW - electrochemical method A1 - Rieger, František A1 - Jirout, Tomáš A1 - Ceres, Dorin A1 - Seichter, Pavel PB - Polish Academy of Sciences Committee of Chemical and Process Engineering DA - 2013 T1 - Effect of Impeller Shape on Solid Particle Suspension SP - 139 UR - http://journals.pan.pl/dlibra/publication/edition/84838 T2 - Chemical and Process Engineering ER -