Kenics mixer specification

In most process piping applications, the required Kenics mixer diameter is the same as the existing process line diameter. The K-factor for a specific process application is determined by the Reynolds number as follows [35] ... 

VL = 1 Wj), partial inversion. In the first case, N = 0 corresponds to a CSTR and N to a plug-flow reactor. It is shown that the best chemical conversion is obtained with complete flow inversion. The RTD in a Kenics mixer comprising 8 elements could be represented by this model with N = 3 and complete mixing. Static mixers could be used as chemical reactors for specific applications (reactants having large viscosity differences, polymerizations) but the published data are still very scarce and additional information is required for assessing these possibilities. 

We used the direct relationship between intermaterial area density (p) and stretching (k) stated in eq. (3-15) to compute the spatial structure of p in the Kenics flow. Approximately 4 x 10 tracer particles were used in the stretching computations to assure statistically significant results. The specific method is as follows First, the accumulated stretching of all the tracer filaments was recorded after 2, 6, 10, and 22 Kenics mixer elements. Then a uniform lattice of 225 x 225... 

The Kenics HEV mixer, which consists of tabs, shows a transition in mixing performance at a very high Reynolds number. This is believed due to the change in vortex structure off the tabs at a specific tab Reynolds number rather than a pipe Reynolds number. Since the tab/diameter ratio is kept constant, this occurs at a higher pipe Reynolds number. 

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