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4313 Nebraska Court
Pomfret, MD 20675
USA
Phone:  (301) 934-5605
Fax: (301) 934-5606
Copyright (c) 2012  Jonas, Inc.  All Rights Reserved
jonasinc@steamcycle.com
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Customized Steam Cycle Water Chemistry Guidelines
for Fossil Fuel Utility, Industrial, and Combined Cycle Units
These comprehensive Guidelines, customized for a specific unit, cover water and steam chemistry control for utilities, industrial units, and combined cycles for any type of water treatment.  These Guidelines also discuss the basics of water chemistry and corrosion control, management aspects, and cycle design, provide rationale and a description of cycle chemistry control, give operating limits for condensate, feedwater, boiler water, steam, makeup, and return condensate, and specify action levels, monitoring, sampling, and instrumentation.
The Guidelines relate the cycle and component design to selection of water treatment and cover normal operation, startups, and layup.  Chemical cleaning, quality control of water treatment chemicals and ion exchange resins, control of chemical contamination by extraneous substances and problem recognition, operator actions, and engineering solutions to problems are also discussed.
Sample Table of Contents
1 - INTRODUCTION
1.1  System Considerations
1.2  Boiler or HRSG Concerns
1.3  Steam Turbine Considerations
1.4  Condenser Considerations
1.5  Environmental Considerations
2 - MANAGEMENT
3 - CYCLE DESCRIPTION
 
4 - SELECTION OF WATER TREATMENT, SAMPLE POINTS, ACTION LEVELS, AND TARGET VALUES
4.1   Introduction
4.2   Selection of Water Treatment
4.3   Rationale for Sample Points
4.4   Rationale for Action Levels
4.5   Rationale for Target Values
4.6   Chemical Addition Points
5 - CONTROL LIMITS
6 - WATER AND STEAM FOR GAS TURBINE INJECTION (where applicable)
6.1  Target Values
6.2  Overall Limits
6.3  Compatibility of the Water/Steam and the Gas Turbine Materials
7 - GUIDELINES FOR STARTUP, CYCLING AND PEAKING OPERATION, AND COMMISSIONING
7.1  Startup
7.2  Cycling and Peaking Operation
7.3  Commissioning
8 - CORRECTIVE ACTIONS
8.1  Short-Term Corrective Actions
8.2  Long-Term Corrective Actions
8.3  Sale and Deposit Buildup
8.4  Corrosion Damage
9 - LAYUP PRACTICES
10 - CHEMICAL CLEANING
10.1  Chemical Cleaning of Boilers/HRSGs
10.2  Cleaning of Turbines, Condensers, and Evaporators
11 - REFERENCES AND BIBLIOGRAPHY
APPENDIX A - REPRESENTATIVE SAMPLING
A.1  Factors Affecting Sampling
A.2  Sampling Systems
A.3  Grab Sample Procedures
A.4  Sampling System Maintenance
A.5  Turbine Deposit Collector/Simulator
APPENDIX B - WATER AND STEAM CHEMISTRY MONITORING
B.1  Proper Method Selection
B.2  Calibration Techniques
B.3  Operation and Maintenance
APPENDIX C - QA/QC FOR SAMPLING AND ANALYSIS
C.1  Definitions
C.2  QA/QC for Sampling Systems
C.3  QA/QC for On-line Instruments
C.4  Charting of Instrument Performance
C.5  Summary
C.6  QA/QC for Laboratory Procedures
APPENDIX D - DATA COLLECTION, INTERPRETATION, AND MANAGEMENT
D.1  Data Collection
D.2  Data Storage and Retrieval
D.3  Data Analysis and Interpretation
D.4  Expert Systems
APPENDIX E - OTHER CONSIDERATIONS
E.1  Quality Control of Water Treatment Chemicals, Ion Exchange Resins, and Activated Carbon
E.2  Ion Exchange System Performance Testing
E.3  Control of Chemical Contamination by Extraneous Substances
E.4  Monitoring of Corrosion and Scale/Deposits
E.5  Oxide Exfoliation and Solid Particle Erosion
APPENDIX F - COMMON TERMS AND DEFINITIONS
APPENDIX G - USEFUL GRAPHS AND TABLES
Serving the power industry since 1983
Specializing in Sampling and Instrumentation, Corrosion,
Water and Steam Chemistry, and Failure Analysis
Jonas, Inc.