Untitled Document

Wolfgang Marquardt
Constructive Nonlinear Dynamics in Process Systems Engineering Prof. Wolfgang Marquardt, RWTH Aachen University of Technology co-authored with Martin Mönnigmann
Abstract:
The Chemical process systems are often exhibiting distinct nonlinear behaviour. To date, sensitivity, bifurcation and singularity analysis have been employed to identify and characterize nonlinear phenomena in process systems. These phenomena include multiple steady states, oscillations or even chaotic behaviour. The analyses have been aiming at a proper understanding of the relation between the observed phenomena on the one hand and the process parameters as well as the underlying physical-chemical processes on the other hand. These methods have rarely been used to address synthesis problems in either process design or process control, where a desired process behaviour is realized according to the specifications and objectives of a designer in a constructive manner. This contribution reviews recent work on constructive nonlinear dynamics which extends and applies methods from nonlinear dynamics to address synthesis rather than analysis problems. The suggested method systematically accounts for process economics and process operability in an integrated framework. Further, model as well as process uncertainties can be addressed in a straightforward manner. The suggested formalism will be illustrated by means of examples from various areas of process systems engineering including process design, controlller tuning and the integration of design and control under uncertainty. Additional opportunities for future research and application will be pointed out.
Biography:
Wolfgang Marquardt holds Diplom-Ingenieur Verfahrenstechnik (1982), Dr.-Ing. (1988) and Habilitation (1991) degrees from the University of Stuttgart. He is currently a Professor of Process Systems Engineering at RWTH Aachen University of Technology and the Head of a research group of 16 people with several projects in different areas of process systems engineering. His current research activities are in four areas focusing on the further development of methods for i) Model-based Experimental Analysis; ii) Optimization-based Process Control; iii) Process Synthesis and iv) Information-based Support and Improvement of Work Processes. The methods are benchmarked and evaluated on a diversity of chemical processes including Fluid Separation, Polymerization, Bio Processes, Multiphase Fluid Reactors and Crystallization. He is the author of more than 150 publications in scientific journals and conference proceedings and is serving as co-editor of the Journal of Process Control. He has also provided consultancy services for a number of companies in the chemical and software industries.

Wolfgang Marquardt

Constructive Nonlinear Dynamics in Process Systems Engineering

Prof. Wolfgang Marquardt, RWTH Aachen University of Technology co-authored with Martin Mönnigmann

Abstract:

The Chemical process systems are often exhibiting distinct nonlinear behaviour. To date, sensitivity, bifurcation and singularity analysis have been employed to identify and characterize nonlinear phenomena in process systems. These phenomena include multiple steady states, oscillations or even chaotic behaviour. The analyses have been aiming at a proper understanding of the relation between the observed phenomena on the one hand and the process parameters as well as the underlying physical-chemical processes on the other hand. These methods have rarely been used to address synthesis problems in either process design or process control, where a desired process behaviour is realized according to the specifications and objectives of a designer in a constructive manner. This contribution reviews recent work on constructive nonlinear dynamics which extends and applies methods from nonlinear dynamics to address synthesis rather than analysis problems. The suggested method systematically accounts for process economics and process operability in an integrated framework. Further, model as well as process uncertainties can be addressed in a straightforward manner. The suggested formalism will be illustrated by means of examples from various areas of process systems engineering including process design, controlller tuning and the integration of design and control under uncertainty. Additional opportunities for future research and application will be pointed out.

Biography:

Wolfgang Marquardt holds Diplom-Ingenieur Verfahrenstechnik (1982), Dr.-Ing. (1988) and Habilitation (1991) degrees from the University of Stuttgart. He is currently a Professor of Process Systems Engineering at RWTH Aachen University of Technology and the Head of a research group of 16 people with several projects in different areas of process systems engineering. His current research activities are in four areas focusing on the further development of methods for i) Model-based Experimental Analysis; ii) Optimization-based Process Control; iii) Process Synthesis and iv) Information-based Support and Improvement of Work Processes. The methods are benchmarked and evaluated on a diversity of chemical processes including Fluid Separation, Polymerization, Bio Processes, Multiphase Fluid Reactors and Crystallization. He is the author of more than 150 publications in scientific journals and conference proceedings and is serving as co-editor of the Journal of Process Control. He has also provided consultancy services for a number of companies in the chemical and software industries.