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Models for online control of batch polymerization processes .

Models for online control of batch polymerization processes . Background : Summer internship Copolymerization reactor model written in the Modelica programming language . Main goal: Offline parameter estimation

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Models for online control of batch polymerization processes .

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  1. Models for online controlof batch polymerizationprocesses. Background: Summer internship • Copolymerizationreactormodelwritten in theModelicaprogramminglanguage. Main goal: Offline parameter estimation • The establishedmodelsaremainlymade from first principles, and modelvalidation is required in order to verifythemodel. • Useexperimental data togetherwiththeCyberneticaModelFitsoftware to improvethemodel. Ultimate scope: Obtain a high-end model for which an MPC controllercan be designed, usingonline estimation and optimization. Controller design is left for masters thesis. Student: Fredrik Gjertsen Supervisor, NTNU: Prof. Sigurd Skogestad Supervisor, external: Peter Singstad, Cybernetica AS

  2. The copolymerizationmodel • Two-phaseemulsioncopolymerizationof styrene and butyl acrylate • Quitecomprehensivemodel • ~ 30 states • ~ 35 parameters • Considerationswithrespect to computational time must be done • Implementation in a control system

  3. Progress • Learn to usesoftware for parameter estimation • Theoryofestimation • Acquireexperimental data from one or more reactors (labscale or industrialscale). • Performoff-line parameter fitting • Kineticadjustmentfactors • Heat transfer properties

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