UM BREVE ESTUDO DOS PARÂMETROS DO MÉTODO ENXAME DE PARTÍCULAS

This article aims to present an analysis of a population metaheuristic, the Particle Swarm (PSO), applied to solve a thermodynamic problem.The problem of calculating the phase equilibrium of a mixture is present in Chemical Engineering processes.To be solved it is necessary to know a priori the number of phases present in the mixture, for this one must solve the optimization problem known as stability test.The main objective of this work is to apply the global search method to minimize the objective problem.It will be used the polarization technique that allows to find all the stationary points of the function, and will also be evaluated strategies of PSO parameter valuation.The numerical results of the tests will be presented for three binary mixtures already discussed in the literature, in order to evaluate which proposed methodology will be the most robust for the computational efficiency of the method.