Study on Particle Swarm Optimization Variant and Simulated Annealing in Vapor Liquid Equilibrium Calculation

Rama Oktavian; Agung Ari Wibowo; Zuraidah Fitriah

doi:10.14710/reaktor.19.2.77-83

DOI: https://doi.org/10.14710/reaktor.19.2.77-83

Study on Particle Swarm Optimization Variant and Simulated Annealing in Vapor Liquid Equilibrium Calculation

*Rama Oktavian

- Department of Chemical Engineering, Brawijaya University, Indonesia

Agung Ari Wibowo - Department of Chemical Engineering, State Polytechnic of Malang, Indonesia

Zuraidah Fitriah - Mathematics Department, Brawijaya University, Indonesia

Received: 17 May 2019; Published: 11 Aug 2019.

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Abstract

Phase equilibrium calculation plays a major rule in optimization of separation process in chemical processing. Phase equilibrium calculation is still very challenging due to highly nonlinear and non-convex of mathematical models. Recently, stochastic optimization method has been widely used to solve those problems. One of the promising stochastic methods is Particle Swarm Optimization (PSO) due to its simplicity and robustness. This study presents the capability of particle swarm optimization for correlating isothermal vapor liquid equilibrium data of water with methanol and ethanol system by optimizing Wilson, Non-Random Two Liquids (NRTL), and Universal Quasi Chemical (UNIQUAC) activity coefficient model and also presents the comparison with bare-bones PSO (BBPSO) and simulated annealing (SA). Those three optimization methods were successfully tested and validated to model vapor liquid equilibrium calculation and were successfully applied to correlate vapor liquid equilibrium data for those types of systems with deviation less than 2%. In addition, BBPSO shows a consistency result and faster convergence among those three optimization methods.

Keywords: Phase equilibrium, stochastic method, particle swarm optimization, simulated annealing and activity coefficient model

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Section: Research Article

Language : EN

In Volume 19 No. 2 June 2019

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