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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