Maximum mixedness comparison with segregation

Comparison of the segregated-flow and maximum-mixedness models, with identical RTD functions, shows that the former gives better performance. This is consistent with the observations of Zwietering (1959), who showed that for power-law kinetics of order n > 1, the segregated-flow model produces the highest conversion. 

Maximum Mixedness With a particular RTD, this pattern provides a lower limit to the attainable conversion. It is explained in Sec. 23. Some comparisons of conversions with different flow patterns are made in Fig. 23-14. Segregated conversion is easier to calculate and is often regarded as a somewhat plausible mechanism, so it is often the only one taken into account. 

Comparison of the asymmetric distribution results with the bimodal distribution results for both the segregation and maximum mixedness models yield similar outcomes except the values are slightly different. 

Even for the maximum mixedness model, the calculation of an extreme concentration value is possible. This extreme value, in comparison with the previous one for the segregation model, represents the opposite end of the scale. The maximum mixedness model is relevant to microfluids and yields, even in this case, results that do not differ considerably from those that can be obtained by means of direct utilization of separate flow models. The model is, however, of importance in cases in which experimentally determined residence time functions are available for a reactor system. The maximum mixedness model is more difficult to visualize than the segregation model. However, its underlying philosophy can be described as follows ... 

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