CleanAir performs sound emissions tests for cooling towers to
determine near field sound pressure levels or sound power levels at specified
locations. Tests are typically performed to ensure that permitted limitations
or contractual noise limits are not exceeded. These limits can be
problematic as new facilities are being installed on ever decreasing plot
sizes with equipment installation close to property lines.
CleanAir personnel recently participated in the revision of the CTI Code ATC-128 and presented a paper at the 2007 CTI winter meeting on the measurement of sound from cooling towers.