01-04: Cooling Towers, Evaporative Condensers, and ASHRAE Guideline 12-2000 Ozone

01-04: Cooling Towers, Evaporative Condensers, and ASHRAE Guideline 12-2000 OzoneASHRAE recently published a guideline, 'Minimizing the Risk of Legionellosis Associated with Building Water Systems'. Guideline 12 presents guidance covering a multitude of systems including cooling towers and evaporative condensers. The guideline presents a description of each system as well as an overview of the system operation including operating temperature, water droplet sizes, and nutrient availability. Recommended treatment practices are

That paper discusses the various vibration modes that can be generated by the interaction of a fan with the air-cooled installation

they also must manage their operating risks

Overall performance achieved with a nonchromium low zinc cooling

poor design

as discussed

but also of outside services and ecological systems

Frequent questions include: What test methods should be used to develop scale inhibitor performance data

The methodology has been reported previously

cooling this water through a range of 15 to 20°

phosphorus

The steam from the turbine exhaust condenses as it is directly cooled by forced convection of the ambient air

and the application of newly developed halogen stable copper corrosion inhibitor to reduce copper discharge