89-07: Ozone Treatment of Cooling Water Results of a Full-Scale Performance HVAC Applications

89-07: Ozone Treatment of Cooling Water Results of a Full-Scale Performance HVAC ApplicationsThis paper is the first technical status report of a continuing evaluation of ozone treatment for cooling tower water systems. Data will be presented that illustrates the results of ozone treatment in a 3400 ton air conditioning cooling systems at the U. S. Department of Energy Y 12 Plant in Oak Ridge, Tennessee. Heat transfer data and equipment inspections confirm that a threshold surface temperature exists; below which heat exchange surfaces remain

Cooling tower operators are currently confronted with a variety of contemporary chemical treatment and chemical/physical control processes as vendors of chemicals and equipment attempt to fill the vacuum created by the regulatory restriction of chromate based programs from our industrial arsenal

In order to do this

and changes in salt concentration in the droplet

corrosion rates were higher than desired

Within the past 20-years

The fouling of surfaces can reduce heat transfer and cooling efficiencies

and water-cooled process equipment due to fatigue

high cycle operation risks mineral scale formation

Performance test results are included

and interaction with other water treatment chemicals are greatly reduced

film fill is more susceptible to fouling than conventional splash fill

Oil mist systems provide the most effective protection against water contamination