Enhancing Open Tower Performance: Mastering Water Quality and Legionella Control

Enhancing Open Tower Performance: Mastering Water Quality and Legionella Control 

The high-efficiency performance of the Open Tower is inextricably linked to the disciplined management of its recirculating water quality. Due to the direct contact between the water and ambient air, the system acts as an efficient air scrubber, absorbing contaminants, increasing oxygen content, and accelerating the concentration of dissolved solids. Our commitment to high-performance open towers includes providing essential design features and guidance necessary to manage these challenges effectively, particularly concerning scaling, corrosion, and biological control.

We design our Open Evaporative Cooling Systems with features that facilitate superior water treatment. This includes deep collection basins for easy sludge removal, non-corrosive PVC fill and casings, and optimized water distribution systems that prevent stagnation—a critical factor in mitigating biological growth. However, the most vital measure is the control of water loss mechanisms. Evaporation naturally concentrates dissolved solids, necessitating Blowdown (scheduled draining) to prevent scaling. We integrate precise conductivity meters and automated blowdown systems to ensure optimal Cycles of Concentration (COC), conserving water while protecting heat exchange surfaces.

Crucially, our open towers are engineered with safety at the forefront. The risk of Legionella growth, while manageable, is a primary concern for all open-circuit systems. Our towers feature high-efficiency Drift Eliminators certified to reduce water droplet carryover to less than 0.001% of the circulating water flow. By significantly minimizing the release of water aerosols, we reduce the potential for pathogen dispersal, ensuring a safer operating environment for both personnel and the surrounding community. When paired with a rigorous chemical treatment and maintenance plan, our Open Towers provide a robust and responsible solution for high-capacity heat rejection.