how to leverage your data? presented by michel ruel, top control inc. 1
TRANSCRIPT
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How To How To Leverage Your Leverage Your
Data?Data?Presented by
Michel Ruel, Top Control Inc.
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Top Control : history
• 1994-2009–Training, consulting, optimization • Offices in USA, Canada• Strategic partner of Matrikon• Customers in 31 countries
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Tools for Operational ExcellenceValue added solutions:
• Alarm management• Control performance monitoring• Equipment condition monitoring• Process performance monitoring
• Data connectivity• Data management• Data and process visualization• Engineering analysis
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Data→Knowledge → Diagnostics
Process systems
Data
Analysis Performance
Diagnostics Result$
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Control
Valves, transmitters, sensors
PID
Control strategies
Multivariable
Process equipments, pumps, reservoirs…
RTO
Maintenance
Complexity
Follow-up effort
Calibration, maintenance
Configuration, tuning
Tuning, modeling
Models
Qualifications
1, 2…%
1, 2…%
1, 2…%
1, 2,…%
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Impacts
Time
SAVINGS $$$ SAVINGS $$$
SAVINGS $$$
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The reality Numbers from audits, articles and our field experience
• 20 % Control loops, improper design
• 30 % Control valve related problems
• 15 % Not installed properly
• 30 % Nonsensical tuning parameters
• 85 % Improper tuning parameters
• only 25 % give a better performance in automatic control !!
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Problems: What Could Go Wrong
FIC-101
FT-101
Non-linearities
Noise
Variability
Tuning
Process design
Control design
Disturbance
Stiction
Hysteresis
Valve at limit
Normal mode?
Interactions with other loops
Operations: SP, Mode
OscillationsIn control?
Process modelFouling
In service?FIC-101PV CO
SP
Mode
Tuning is only one of the problems…
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Expected Results
• Variability: ÷ 2• Cycling: removed• Valve travel: ÷5 (valve wear 2 )
• Robustness: X 2 • Performance: X 2
Quality:Efficiency:
Throughput :Energy:
Maintenance costs:MPC deployment, re-testing:
30%1 to 5%1 to 5%1 to 10%30%70%
• Service factor• Tuning• Repair• Review control strategies• Optimize
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Expected Benefits of Optimization
• Increase process performance• Use resources (human & material) wisely
• Reduced energy costs• Reduced waste• Reduced variability• Reduced valve maintenance• Reduced pollution• Cycling removed
• Increased up-time • Improved product quality• Improved efficiency• Better operation• Improved safety• Smoother start-up
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Conclusions• 1-Usage 2-Stability 3-Performance• Resources are used where they are really
needed• Process control systems are used to their full
potential• Operation and production are optimal• Maintenance and engineering are efficiently
used.
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Boiler 3, November 2007 vs April 2008November 2007 April 2008
2 sticky valves None
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November 2007 vs April 2008November2007 Mapril 2008
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An example at White Birch: PIC 1900 (tuning parameters adapted to load)
February 8 2008 June 30 2008
3 times better
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Steam cost over 6 months
Cost of steam (x/GJ)
0
1
2
3
4
5
6
7
2007-12-24 2008-01-13 2008-02-02 2008-02-22 2008-03-13 2008-04-02 2008-04-22 2008-05-12 2008-06-01 2008-06-21
week
x
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Small Gestures That Count!• Actions – Daily– Weekly– Monthly– Yearly
• Workflow, procedures• What can be automated?• How can the process be
sustained?• How can optimization be
optimized?
0%10%20%30%40%50%
60%70%80%90%
100%
0 20 40 60 80 100 120Time
%
Interest
0%10%20%30%40%50%
60%70%80%90%
100%
0 20 40 60 80 100 120Time
%
Support
0%10%20%30%40%50%
60%70%80%90%
100%
0 20 40 60 80 100 120Time
%
Regularity
Succes$Result$
New$
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