Performance/Condition Monitoring & Optimization for Fossil Power Plants

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PM Model – Thermodynamic (First Principles)

CM Model – Empirical (Data Driven)

Integrated PM/CM Model Combination of First

Principles & Empirical

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OLM

Trending/Filtering

Equipment/ Plant

Degradation

Data Validation/

Faulty Instruments Diagnostic

Flow Charts/ Trouble-shooting

Performance

Electronic Logs/ Alerts/ Reports

PI, OPC Data

Historians, NERC/CIP

Compatibility

Process Data

Recorded Over

Operating Range

Nonlinear Models

Unreliable Results from Extrapolation

Automated Techniques/

Expert Analysis

Residual Values for

Health Assessment

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• Data Filtering for Accurate/Comprehensive Reference Models

• Intelligent Alarm Thresholds to Minimize False Alarms/Maintain Earliest Notification of Anomalies

• First Principles Calculations with Enhanced Diagnostics

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GADS Categories

Boiler & Auxiliaries

Steam Turbine

Generator Balance of Plant

Other

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KPIs

OPERATION/PERFORMANCE

AIRHEATER

ENVIRONMENT

FLUE GAS

CO

NOX

SO2

MAIN STEAMTEMPERATURE

REHEAT STEAMTEMPERATURE

FEEDWATERTO

THROTTLEFLOW RATIO

X-RATIODEVIATION

GAS SIDEEFFICIENCY

MAINSTEAM

DEWPOINT

EXCESSOXYGEN

AIRHEATER

EFFICIENCYEXCESSOXYGEN

FEEDWATERHEATERS

TURBINE-GENERATOR

IP TURBINEEFFICIENCY

STAGEPRESSUREDEVIATION

COOLINGSYSTEM BOILER

FEEDPUMPS

TURBINECYCLE

MAKE-UP

UNIT

AUXILIARYPOWER

EQUIPMENTINTEGRITY

BOILER

MAXIMUMHEAT INPUT

STACK

OPACITY

TEMPERATURE

REHEATSTEAM

TEMPERATUREAVERAGE COLD

ENDTEMPERATURE

BOILER

TEMPERATUREDEVIATION INDEX

UNALLOWABLE BOILER OPERATING CONDITIONSUNALLOWABLE AIR HEATER OPERATING CONDITIONS

UNALLOWABLE TURBINE OPERATING CONDITIONSUNALLOWABLE OVER-FIRING

ENVIRONMENTALCOMPLIANCE

HEATERPROBLEMS,

FOULING ISSUES

LONG TERMCONDENSER

ISSUES

TURBINE FOULING,UNALLOWABLE

OPERATING CONDITIONS

CONDENSERPRESSURE

COOLINGTOWER

TEMPERATURE MOTORAMPS

GAS SIDEPRESSURE

DROP

HP TURBINEEFFICIENCY

HEAT RATE HEAT RATE

TUBE LEAKS,EXCESSIVESLAGGING

GAS/AIR FLOWIMBALANCE, CASING

AIR INLEAKAGE,FOULING

Current PM/CM Efforts

NERC/ GADS

DOE/ NETL

EPRI ASME

Others

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Advanced Virtual Energy Simulation Training and Research (AVESTAR)

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• Revision Intended for Publication in 2015

• Incorporate Advances in Technology

• Consider PM/CM as Integral to Maximizing Asset Value

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Asset Health Management Assess/Compare Health

of Dissimilar Assets

Integrate Data from Various Sources

Objective Comparison of Health Improve Life/Performance of

Major Components

Boilers, T-G, Auxiliary Systems

Maximize Value/Life of Assets

Evaluate Advanced Monitors/Controls & Improve Combustion Performance

Design/Test Sensors for Real-Time Monitoring

Turbine Blades, Emissions Controls/Monitors

Current Initiatives

Utilizing Parameters for Diagnostics

Tools for Optimizing Performance

PM/CM Modeling

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Thank You!

Contact Information:

Power & Energy Systems Services

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