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Aachen University - Process
Systems Engineering
Contact
Tel: ++49 (241) 8096712
Fax: ++49 (241) 8092326
Turmstr. 46
52064 Aachen
Germany
Project description: Model-centric process
engineering
The Chair for Process Systems Engineering at
RWTH Aachen has participated in the
EC-funded CAPE-OPEN and Global CAPE-OPEN
projects right from the beginning. Expertise
in research about process modeling,
simulation, and optimization were
contributed to the definition of the
standardized interfaces resulting from those
projects. Now that the interfaces have
become stable, efforts are spent to the
migrate prototypes of tools resulting from
research towards CAPE-OPEN compatibility.
Further, the development of new tools is
influenced by the standards interfaces and
the corresponding reference architecture.
The simulation platform Cheops, which
resulted as a explorative work from the
CAPE-OPEN project, uses several CAPE-OPEN
interfaces, especially in the area of
numeric solvers as well as
sequential-modular specific tools (SMST). It
has been used in case studies to support the
integration of different process modeling
packages such as AspenPlus, gPROMS, HYSYS,
Matlab, or Parsival. Such an integration
allows engineers to reuse models beyond tool
boundaries instead of rewriting them from
scratch for different applications. Also,
strengths from a numerical or modeling
perspective of the various tools can be
exploited through such an integration.
Further developments in this area will try
to cover other parts of the CAPE-OPEN
standard such as unit operation and
thermodynamics interfaces.
In order to support applications based on
dynamic optimization, a general purpose
software package (DyOS), albeit unique in
its class, has been developed. DyOS is a
software tool for the solution of dynamic
optimization problems. It serves also as a
kernel for various extensions for solving
special classes of dynamic optimization
problems, including mixed integer dynamic
optimization problems (miDyOS), dynamic
parameter estimation (paDyOS), optimal
experimental design (oeDyOS), and receding
horizon optimization (rhoDyOS, developed as
part of the INCOOP project). Within DyOS an
interface has been developed between the
commercial modeling and simulation package
gPROMS and state of the art numerical
solution methods. These interfaces rely on
the CAPE-OPEN standards and allow a quick
migration from a dynamic simulation problem
already set up in gPROMS.
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