M Taghavi - Transport Phenomena Research Center, Chemical Engineering Faculty, Sahand University of Technology,
J . S Moghaddas - Transport Phenomena Research Center, Chemical Engineering Faculty, Sahand University of Technology,
R Zadghaffari - Transport Phenomena Research Center, Chemical Engineering Faculty, Sahand University of Technology,

Power consumption of a mixing system is a key variable in chemical and bioprocess engineering; thus, determination of bthis variable is of interest of many processes. In this research laboratory investigation has been carried out on mixing power consumption of a single phase system in a fully baffled stirred tank reactor equipped with dual six-blade Rushton turbines. Results have been compared with data obtained from CFD simulation of experimental set-up and data available in technical literature. Using predicted experimental data an empirical correlation has been derived which presents a new relation in estimation of power consumption in stirred tanks with dual Rushton impellers. Moreover, a reasonable agreement between the experimental, simulation and technical literature results has been observed.

Stirred tank, Dual Rushton Impellers, Power Consumption, Rotational Speed, CFD Simulation