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Cooling Towers Minimize Noise in Symphony Hall

The Symphony Hall at the Woodruff Arts Center in Atlanta, GA had a noise problem. The building’s cooling towers were making a loud, rushing noise that was becoming a problem for patrons attending concerts at the venue. It was said that the sound was similar to that of a jet aircraft passing over the building where the symphony performs.

Knowing that something had to be done the venue looked at a number of alternatives and eventually settled on HDPE Delta Cooling Towers, primarily to solve corrosion problems which typically occur in cooling towers.  The quieter operation was a major factor as well.

Each cooling tower has a dBA rating of less than 50. According to Temple University’s Department of Civil/Environmental Engineering the difference of just 10 dBA’s is very substantial with 70 dBA’s equivalent to a running vacuum cleaner and 50 dBA’s like a quiet suburban home.

The building selected two sets of twin-cells Delta TM Series 500-ton models, each featuring a 20-year warranty on corrosion or other physical damage. Each tower is available with direct-drive motors which means no gearbox or belt is necessary, improving operating reliability. The towers also feature variable-speed fan drives which provide consistent water temperature.

During the first summer of operation most of the fans were running at 50% or less which was more economical for the company. The color also blends in with the roof making them aesthetically pleasing.

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