Session Overview
Methodologies for Process Operations
Wolfgang Marquardt
Process Systems Engineering
RWTH Aachen University
FOCAPO 2003, Coral Springs, FL, January 12-15, 2003
Manufacturing in a Dynamic Environment
feedback
synchronous or asynchronous
rolling window prediction adaptation
operational strategies
reengineering the plant
the plant as part of
the supply chain
performance
indicators
the disturbances
delivery on demand
varying quality specs
fluctuating prices
time-varying environment
corporate strategy
advancing technologies
saturating global markets
tightening legal regulations
...
the requirements
flexible production
smooth dynamics
lean inventories
high capital productivities
sustainable production
...
FOCAPO 2003, Overview of Methodologies for Process Operations
1
PSE on Different Time Scales
• Time scales tend to overlap.
• Plant operation and supply chain management
have to deal with phenomena on all time scales.
• Tremendous complexity has to be addressed.
Real-time
Optimization
Process
Design
Scheduling &
Planning
(Advanced)
Process Control
seconds
minutes
hours
weeks
months
years
time
scale
Methodologies, tools and theories are essential for progress
FOCAPO 2003, Overview of Methodologies for Process Operations
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Model-based Methodologies
• Real-time decision making with multi-criteria objectives:
economics, safety, environment etc.
• Various forms of a-priori knowledge:
- operator experience
- qualitative models
- quantitative, data-driven or fundamental models
• Integration is a key
- across the time scales:
from process control to corporate decision making
- across the supply chain:
competition, cooperation and co-opetition
• Supply chain and information structure design to facilitate
real-time decision making
FOCAPO 2003, Overview of Methodologies for Process Operations
3
This Session ...
... discusses recent developments and future trends
of methodologies for process operations
in three exemplary areas
Barton and Lee
Design of Process Operations Using Hybrid Dynamic Optimization
Bagajewicz
Data Reconciliation and Instrumentation Upgrade.
Overview and Challenges
Venkatasubramanian
Abnormal Events Management in Complex Process Plants:
Challenges and Opportunities in Intelligent Supervisory Control
FOCAPO 2003, Overview of Methodologies for Process Operations
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Topic Areas
Bagajewicz Data Reconciliation and
Instrumentation Upgrade
Venkatasubramanian
Abnormal Events Management
Real-time
Optimization
(Advanced)
Process Control
seconds
minutes
Process
Design
Scheduling &
Planning
Barton and Lee Hybrid Dynamic Optimization
hours
weeks
FOCAPO 2003, Overview of Methodologies for Process Operations
months
years
time
scale
5