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8/9/2019 Seminar Slide 111
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8/9/2019 Seminar Slide 111
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PLANT PERFORMANCE ANALYSIS
Plant performance analysis has been define
as the reconciliation, rectification &
interpretation of plant measurements to
develop better understanding of plant
operation.
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TERMINOLOGIES
IDENTIFICATION :
Procedure for developing hypotheses & determining critical
measurement.
VALIDATION :
Procedure for screening measurements to determine whetherthey are consistent with known unit characteristics.
RECONCILIATION : Procedure for the adjustment of the measurement to close the
process constraints.
RECTIFICATION :
Procedure for the identification of measurement that containgross errors.
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INTERPRETATION :
Procedure for using the plant measurement or adjustments to
troubleshoot, detect faults, develop a plant model or estimateparameters.
TROUBLESHOOTING :
Procedure for identify & solve a problem in operating unit.
FAULT DETECTION :
Procedure for identify deteriorating unit operating performance.
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PLANT PERFORMANCE TRIANGLE
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PLANT ANALYSYS PREPARATION
The purpose of plant analysis preparation is to provide
guidelines for preparation.
There are four categories of preparation stage.1) Analyst preparation.
2) Model preparation.
3) Plant preparation.
4) Laboratory preparation.
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ANALYST PREPARATION
Analyst must have a strong foundation in plant operation & the unit under study.
PFDs Operating
Instrument
Time
SequenceDiagram
P & IDs
UnitInstallation
Process Familiarizatio Data Aquisition Material Balance Energy Balance
Other Process Constraint Equipment Constraint Data Base
Analyst Preparation
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PLANT PREPARATION
INTENT
COMMUNICATION
SCHEDULE
PIPING MODIFICATION
INSTRUMENTATION
SAMPLE CONTAINER
FIELD MEASUREMENT CONDITIONS
PRELIMINARY TEST
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LABORATORY PREPARATION
INTENT
CONFIDENCE
SAMPLING
1) Sampling Locations
2) Sampling Safety
3) Sample Transport, Storage, & Discharge System
4) Sample Container Cleaning
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APPLICATION / SUMMARY
The goal of plant performance analysis is to develop an
accurate understanding of plant operation, the result of
plant performance analysis ultimately leads to a moreefficient, safe, profitable operation.
Plant performance analysis used to improve quality &
quantity of product.
For getting ISO certification one should do the plantperformance analysis.
Plant performance gives an idea of the whole process.
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REFEREN
CE
Robert H. Perry & Don W. Green, Perrys ChemicalEngineering Hand Book VIIthEdition ( Dupont ).
Verneuil,V. S. Jr., and P.Yang, Frantisek Madron BanishBad Plant Data Chemical Engineering Progress, October1992, 45-51. ( Rectification )
Gans, M. and B. Palmer Take Charge of Your PlantLaboratory Chemical Engineering Progress, September
1993, 26-33 ( Plant Test Preparation ) Gans, M., Kohan D. and B. Palmer Systematize Trouble
Shooting Techniques Chemical Engineering Progress,April 1991, 25-29 ( Troubleshooting )
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MacDonald, R.J. and Howat, C.S., Data Reconciliation andParameterEstimation in Plant Performance Analysis, AIchE
Journal, 34(1), January 1988, 1-8.( Interpretation )
Fan, J.Y.,Nikolaou, M., and R.E.White, An Approach to FaultDiagnosis of Chemical Processes via Neural Networks, AIchE
Journal, 39(1), January 1993, 82-87. ( Interpretation )
Chiu-Nan Wei, Diagnose Process Problems, Chemical
Engineering Progress, September 1991, 70-74. (Interpretation ) Frey, H. C. and Rubin, E.S., Evaluate Uncertainties In
Advanced Process Technologies, Chemical EngineeringProgress, May 1992, 63-70. ( Reconciliation )
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Chiu-Nan Wei, Diagnose Process Problems, ChemicalEngineering Progress, September 1991, 70-74. ( Interpretation )
Verneuil,V.S. Jr., and P. Yang, Improve Prediction With DataReconciliation,Hydrocarbon Processing, October 1993, 79-80.( Reconciliation )
Watababe, K. and Himmelblau, D. M., Incipient FaultDiagnosis OfNonlinear Processes With Multiple Causes Of
Faults, Chemical Engineering Science, 39(3), 1984, 491-508.( Interpretation )
Wallace, B.W., Ting-man, T. and Michael, E. R., Effect ofUncertainties in Thermodynamic Data and Model ParametersCalculated Process Performance, Indian Engineering Chemical
Research, 32, 1993, 1367-1371.( Interpretation )
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SITES:-
1) www.google.com
2) www.knovel.com
3) www.elseviour.com
4) www.sciencedirect.com
5) www.plantperformance.com
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THANK YOU