Genetic programming based models for prediction of vapor-liquid equilibrium

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@Article{PATILSHINDE:2018:Calphad,

• author = "Veena Patil-Shinde and Sanjeev S. Tambe",
• title = "Genetic programming based models for prediction of vapor-liquid equilibrium",
• journal = "Calphad",
• volume = "60",
• pages = "68--80",
• year = "2018",
• keywords = "genetic algorithms, genetic programming, VLE, Activity coefficient models",
• ISSN = "0364-5916",
• DOI = "doi:10.1016/j.calphad.2017.11.002",
• URL = "http://www.sciencedirect.com/science/article/pii/S0364591617301281",
• abstract = "The design, operation, and control of chemical separation processes heavily rely on the knowledge of the vapor-liquid equilibrium (VLE). Often, conducting experiments to gain an insight into the separation behavior becomes tedious and expensive. Thus, standard thermodynamic models are used in the VLE prediction. Sometimes, exclusively data-driven models are also used in VLE prediction although this method too possesses drawbacks such as a trial and error approach in specifying the data-fitting function. For overcoming these difficulties, this paper employs a machine learning (ML) formalism namely {"}genetic programming (GP){"} possessing certain attractive features for the VLE prediction. Specifically, three case studies have been performed wherein GP-based models have been developed using experimental data, for predicting the vapor phase composition of a ternary, and a group of non-ideal binary systems. The inputs to models consists of three pure component attributes (acentric factor, critical temperature, and critical pressure), and as many intensive thermodynamic parameters (liquid phase composition, pressure, and temperature). A comparison of the VLE prediction and generalization performance of the GP-based models with the corresponding standard thermodynamic models reveals that the former class of models possess either superior or closely comparable performance vis-a-vis thermodynamic models. Noteworthy features of this study are: (i) a single GP-based model can predict VLE of a group of binary systems, and (ii) applicability of a GP-based model trained on an alcohol-acetate series data for its higher homolog. The VLE modeling approach exemplified here can be gainfully extended to other ternary and non-ideal binary systems, and for designing corresponding experiments in different pressure and temperature ranges",

}

Genetic Programming entries for Veena Patil-Shinde Sanjeev S Tambe

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