Monitoring cycle water chemistry in fossil plants. Volume 2, International water treatment practices in fossil fuel units: Final report

Technical Report · Tue Dec 01 04:00:00 EST 1992

OSTI ID:10131498

Jonas, O ^[1]

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1. Jonas, Inc., Wilmington, DE (United States)

This report presents a survey of foreign water treatment practices and experience in 12 countries together with the results of cycle water and steam chemistry monitoring from 29 units in nine countries andnine different organizations. With data from the open literature, over 40 drum and 30 once-through boiler units are included. The report covers drum boilers using phosphate, phosphate plus hydroxide, sodium hydroxide, and all volatile chemistries, and once-through subcritical and supercritical units using all volatile and oxygenated water treatments. The operation of the represented units includes base load, cycling,and peaking. The unit sizes range from 120 to 750 MW. The report includes unit design and operation. corrosion and other experience. water and steam chemistry control and monitoring, sampling and instrumentation, layup and chemical cleaning practices. and training and management aspects. The differences between US and foreign practices are discussed and recommendations for US utilities and for further research are derived. Objectives of this project and of the international survey have been: Comparison of US and foreign practices and experience; comparison of EPRI Guidelines and foreign standards and guidelines; and identification of better practices and their introduction in the US. Volume 1 presents information obtained during a field monitoring program, using state-of-the-art monitoring and data acquisition systems at four utility units representing different types of design, operation, metallurgy, and chemical treatment. Volume 3 presents the conclusions and recommendations of the water chemistry project.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Sargent and Lundy, Chicago, IL (United States); Jonas, Inc., Wilmington, DE (United States)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 10131498
• Report Number(s): EPRI-GS--7556-Vol.2; ON: UN93008242
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
BOILERS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
COMPONENTS
CORROSION
CORROSION PROTECTION
EPRI
FOSSIL-FUEL POWER PLANTS
MONITORING
PHOSPHATES
RECOMMENDATIONS
SODIUM HYDROXIDES
STEAM
SUPERCRITICAL STATE
SURVEYS
WATER CHEMISTRY
WATER TREATMENT