The ultimate goal of modeling—Simulation of system and plant performance

Abstract Modern production processes in chemical, pharmaceutical and biological industries are characterized by complex process structures, which consist of different apparatuses and process steps. Modeling the entire process requires simulating all units altogether, while taking into account interconnections between them. Nevertheless, in the area of solids processing, there is nowadays an unfilled gap from the side of computer support of process modeling in allowing effective optimization and prediction of the behavior of the whole plant. This paper presents a tool for flowsheet simulation which allows the simulation of the stationary behavior of complex processes dealing with solids and its extension towards dynamic modeling. Also, a new simulation concept is proposed on the basis of the multiscale approach. On the macroscale, flowsheet simulation is performed with the help of the SolidSim system. Parameters for the macromodels in SolidSim are predicted by microscale simulation. The models for the two scales are then coupled by inter-scale communication laws. Application of the proposed modeling concept is shown by an example of fluidized bed granulation.

[1]  M. Schreiber,et al.  Application of population balances in the chemical industry — current status and future needs , 2006 .

[2]  D. Ramkrishna,et al.  On the solution of population balance equations by discretization—II. A moving pivot technique , 1996 .

[3]  Magne Hillestad,et al.  Dynamic Simulation of Chemical Engineering Systems by the Sequential Modular Approach , 1986 .

[4]  V. Gnielinski.  Wärme‐ und Stoffübertragung in Festbetten , 1980 .

[5]  Ka Ming Ng,et al.  Simulation of solids processes accounting for particle‐size distribution , 1997 .

[6]  Ignacio E. Grossmann,et al.  Systematic Methods of Chemical Process Design , 1997 .

[7]  P. Cundall,et al.  A discrete numerical model for granular assemblies , 1979 .

[8]  Nederlandse Centrale Organisatie voor Toegepast-Natuurwetensch Onderzoek,et al.  Contaminated soil '88 , 1988 .

[9]  Ian T. Cameron,et al.  Classification and analysis of integrating frameworks in multiscale modelling , 2004 .

[10]  Stefan Heinrich,et al.  Fluidized bed spray granulation—A new model for the description of particle wetting and of temperature and concentration distribution , 1999 .

[11]  Stefan Heinrich,et al.  Study of dynamic multi-dimensional temperature and concentration distributions in liquid-sprayed fluidized beds , 2003 .

[12]  A. D. Gosman,et al.  MODELING OF GASOLINE SPRAY IMPINGEMENT , 2002 .

[13]  Mykhaylo Krasnyk,et al.  DIANA - An object-oriented tool for nonlinear analysis of chemical processes , 2008 .

[14]  Joachim Werther,et al.  Design specifications in the flowsheet simulation of complex solids processes , 2009 .

[15]  Achim Kienle,et al.  A numerical bifurcation analysis of continuous fluidized bed spray granulation with external product classification , 2006 .

[16]  Lawrence B. Evans.  Simulation with respect to solid fluid systems , 1989 .

[17]  K. Wintermantel,et al.  Process and Product Engineering: Achievements, Present and Future Challenges , 1999 .

[18]  Ian T. Cameron,et al.  Formulation and comparison of alternative multiscale models for drum granulation , 2005 .

[19]  Juan Du,et al.  Multi-scale modeling and control of fluidized beds for the production of solar grade silicon ☆ , 2010 .

[20]  Joachim Werther,et al.  Flowsheet Simulation of Solids Processes , 2006 .

[21]  Stefan Heinrich,et al.  Comparison of fibre optical measurements and discrete element simulations for the study of granulation in a spout fluidized bed , 2009 .

[22]  Wolfgang Marquardt,et al.  An ontological conceptualization of multiscale models , 2009, Comput. Chem. Eng..

[23]  Joachim Werther,et al.  Fluidized bed spray granulation: Analysis of the system behaviour by means of dynamic flowsheet simulation , 2010 .

[24]  Heiko Briesen,et al.  Scale Integration for the Coupled Simulation of Crystallization and Fluid Dynamics , 2005 .

[25]  Joachim Werther,et al.  Block-oriented process simulation of solids processes , 2000 .