Simulation of the Granulation Process

Term (4) may be expanded to account for the different growth mechanisms and term (5) may be expanded to include the different mechanisms by which breakage occurs. 

For a constant volume granulator the terms in the population balance equation become  

Growth by coating causes granules to grow into and out of the size range v to V + di . 

The rate of growth of granules by coalescence may be written as (Randolph and Larson, 1971)  

Term (i) is the rate of formation of granules of size v by coalescence of smaller granules. Term (ii) is the rate at which granules of size v are lost by coalescence to 

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