High-cycle operation, highly variable make-up water chemistry, and intermittent halogenations: all these factors make power plant cooling systems some of the most challenging to manage. Proper polymer monitoring allows one to understand true demand factors versus other artifacts that might negatively impact control. This paper examines the chemical aspects of high-level halogen application in power plant cooling systems. This paper discusses how the stress created by high-level halogen applications can be managed under optimal polymer control. Lab data will be presented along with actual field application data collected in highly stressed power plant cooling systems that demonstrates the stability and suitability of tagged polymer to respond to variable system stress in a power plant environment.
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