Analytical solution of population balance equation involving aggregation and breakage in terms of auxiliary equation method

摘要

This study presents an effective analytical simulation to solve Population Balance Equation (PBE) involving particulate aggregation and breakage by making use of the appropriate solution(s) of associated complementary equation via auxiliary equation method (AEM).Travelling wave solutions of the complementary equation of a nonlinear PBE with appropriately chosen parameters is taken to be analogous to the description of the dynamic behavior of the particulate processes. For an initial proof-of-concept, a general case when the number of particles varies with respect to time is chosen. Three cases i.e. balanced aggregation and breakage and when either aggregation or breakage can dominate are selected and solved for their corresponding analytical solution. The results are then compared with the available analytical solution, based on Laplace transform obtained from standard literature. In this study, it is shown that the solution approach proposed via AEM is flexible and thereby more efficient than the analytical approach used in the literature.