Lab Scale Mixing in Pipelines

Similar equipment and techniques can be employed for continuous flow experiments using in-line mixing systems. Again, PMMA is an ideal material for the construction of transparent test sections. Most measurements with in-line mixers require accurate measurements of pressure drop and flow rate. Calibrated gear pumps can be useful for small scale work. 

Some other general considerations on in-line mixing experiments are  

Leave enough straight pipe upstream of the measurement position to get fully developed flow if that is what is required for the experiment. 

Make sure that static mixer elements are manufactured correctly at small scale. Sometimes the wrong gauge of sheet or the wrong number of element layers can be used for small scale mixers. 

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