Scalar mixing measurements in a continuously operated stirred tank agitated with a Rushton turbine using an LIF line scan technique

An LIF line scan system is presented and used to obtain unobtrusive mean concentration measurements in a continuously operated stirred tank agitated with a single Rushton impeller at two inlet flowrates. The measurements showed that on the centre line of the tank, whilst macromixing was always complete, micromixing was less complete than in other regions of the tank. Compared to point measurement techniques, the line scan system made data collection more comprehensive and convenient and the determination of a line of data allows the possibility of the correction of beam attenuation and the extension of the technique to a larger scale.