Startseite Combined Mechanistic and Empirical Modelling
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

Combined Mechanistic and Empirical Modelling

  • Belmiro Duarte , P. M. Saraiva und C. C. Pantelides
Veröffentlicht/Copyright: 15. Januar 2004
Veröffentlichen auch Sie bei De Gruyter Brill

We consider a hybrid modelling approach based on the combination of prior knowledge, in the form of mechanistic models, with tools for the extraction of knowledge from operating data: the first component captures first-principles system behavior features, while the second one accounts for the differences found between mechanistic predictions and real data. The empirical modelling methods tested include backpropagation Artificial Neural Networks (ANN), Multivariate Adaptive Regressive Splines (MARS) and Regression Analysis (RA). In the proposed hybrid structure, mechanistic predictions provide additional inputs for the empirical module. To evaluate the performance of the various combinations of modules and hybrid approaches, we consider two simulated case studies (involving a CSTR with a reversible reaction and a fed-batch penicillin fermentation process). In all of the above, our hybrid structure based on a mechanistic module together with an empirical component has outperformed other approaches, and the mechanistic model/MARS combination resulted in lowest overall prediction errors.

Published Online: 2004-1-15

©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston

Artikel in diesem Heft

  1. Review
  2. Industrial Applications of Reactive Distillation: Recent Trends
  3. Phase Mixing Modeling in Multiphase Reactors Containing Gas Bubble: a Review.
  4. Article
  5. Numerical Aspects of Bubble Column Simulations
  6. Reactor Operating Strategy and Secondary Nucleation in Emulsion Polymerization
  7. Combined Mechanistic and Empirical Modelling
  8. The Catalytic Evaluation of Structured Zeolite Catalysts
  9. A Mechanistic Model for the Water Gas Shift Reaction Over Commercial Catalysts Containing CuO/ZnO
  10. Catalytic Pyrolysis of Difluorochloromethane to Produce Tetrafluoroethylene
  11. Radial Profiles of Particle Velocity in a Large Scale CFB Downer
  12. Nonlinear Dynamic Analysis of the Local Heat Transfer Rate in Three-Phase Reactors
  13. Conversion of Synthesis Gas into Light Hydrocarbons. Modelling of the Catalytic Reaction Network
  14. Influence of the Preparation Method and Metal Precursor Compound on Alumina-Supported Pd Catalysts
  15. A 3D Model of Combustion in Large-Scale Circulating Fluidized Bed Boilers
  16. Gas and Solid Mixing in High-Density CFB Risers
  17. A Local Model for Gas-Liquid Mass Transfer in a Gas-Liquid-Solid Circulating Fluidized Bed
  18. A Hybrid Methodology For On-Line Process Monitoring
  19. A Laboratory Steam-Cracking Reactor to Characterize Raw Materials
  20. Modeling, Simulation and Optimal Control of Ethylene Polymerization in Non-Isothermal, High-Pressure Tubular Reactors
  21. A Parametric Study of the Oxygen Elimination Process in a Packed Bed
  22. Flow Generated by Radial Flow Impellers: PIV Measurements and CFD Simulations
  23. Enhanced Reactor Performance with Pressure and Vacuum Swing Reaction
  24. Characterization and Selection of Materials for Air Biofiltration in Fluidized Beds
  25. Control and Optimization of a Three Phase Industrial Hydrogenation Reactor
  26. Horizontal Penetration of Gas-Liquid Spray Jets in Gas-Solid Fluidized Beds
  27. Optimization of Flow Shear Stress Through a Network of Capillary Fibers With the Use of CFD
  28. Oxygen Distribution in Packed Bed Membrane Reactors For Partial Oxidation Systems and its Effect On Product Selectivity
  29. Wastewater Minimisation Using a Heuristic Procedure
  30. Characterization of Fluidization Quality in Fluidized Beds of Wet Particles
  31. Numerical and Experimental Investigations into The Effect of Gap Between Baffle and Wall on Mixing in an Oscillatory Baffled Column
  32. Alternative Designs for Fixed Bed Catalytic Reactors
  33. Hydrodynamic and Mass Transfer Parameters in Agitated Reactors Part I: Critical Mixing Speed, Induced Gas Flow Rate, and Wavy Surface in SARs and GIRs
  34. Application of CFD Modelling Technique in Engineering Calculations of Three-Phase Flow Hydrodynamics in a Jet-Loop Reactor
  35. 3-D Modeling of Liquid Injection into Fluidized Beds
  36. Conference Presentation
  37. Granular Flows and Gas Fluidization
  38. Elastic Granular Flows
  39. Multi-fluid CFD modelling of fluidised bed reactors
  40. Chemical Reaction Engineering, the Environment, Pollution Prevention and Sustainable Development
  41. Gas-Liquid-Solid Fluidization: Perspectives
  42. Short Communication or Note
  43. Catalytic Drying of Digested Sludge
  44. Enhancement of the Distribution of a Liquid Sprayed Into a Fluidized Bed
Heruntergeladen am 3.10.2025 von https://www.degruyterbrill.com/document/doi/10.2202/1542-6580.1128/html?lang=de
Button zum nach oben scrollen