Condenser targeted chlorination demonstration at Brayton Point Station, Unit 2
EPRI sponsored the development of condenser targeted chlorination to control slime fouling on condenser tubes. Hydraulic model studies, chlorine schedules optimization, and corrosion studies were conducted between 1983 and 1986 to develop design parameters. A full-scale demonstration at the Brayton Point Station -- Unit 2 condenser was performed in 1987--1988. One half of the condenser bundle was fitted with a fixed nozzle targeted injection system. The other half was used as a control with conventional chlorination. The condenser was instrumented to allow daily trending of the cleanliness factors in the targeted and conventionally treated bundles. The chemical parameters, such as the chlorine schedules (dosage, duration, and frequency) and water quality, were documented. The Trihalomethane (THM) levels at the effluent were evaluated and, after the test, tube scrapings were analyzed. Targeted chlorination resulted in: up to 20 percent condenser performance improvement; up to 80 percent chlorine consumption reduction; less than 0.1 ppM total residual chlorine achieved at the effluent in the sealpit; no measurable condenser corrosion; and undetectable levels of THM at the effluent in the sealpit.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (USA); Stone and Webster Engineering Corp., Boston, MA (USA)
- Sponsoring Organization:
- EPRI
- OSTI ID:
- 6205920
- Report Number(s):
- EPRI-GS-7181
- Country of Publication:
- United States
- Language:
- English
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AUXILIARY SYSTEMS
AUXILIARY WATER SYSTEMS
BIOLOGICAL FOULING
CHEMICAL REACTIONS
CHLORINATION
CONDENSER COOLING SYSTEMS
COOLING SYSTEMS
ENERGY SYSTEMS
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HEAT TRANSFER
HYDRAULICS
MECHANICS
POWER PLANTS
RELIABILITY
TESTING