Air-Cooled Chiller Noise Reduction Hushcore® Standard™ System
Air-Cooled Chiller Noise Reduction Hushcore® Standard™ System
Noise Complaints From The Community
The Data Center owner received complaints from the nearby community having to do with their air cooled chiller overall noise and prominent discrete tones.
The Data Center noise was a nuisance for the surrounding community and BRD was tasked with providing an HVAC acoustic design to remedy the problem. Thus, BRD provided a non-invasive acoustic blanket source treatment, thus maintaining cost control, and avoiding costly preliminary site work and coordination. In turn, this helped streamline the process and solution.
In addition to the compressor and oil separator, the chiller circuit and associated piping, shown above and below, were treated treated as part of the Hushcore(R) Standard(TM System.
Data Center Noise Attenuation
First, BRD Noise And Vibration Control designed a prototype solution of one unit to confirm for all parties that the Hushcore® Standard™ “SCE” solution would meet the target noise criteria and performance numbers. After testing and confirming that it did, production was started to provide this solution for all units.
Third party testing onsite by the Acoustical Consultant confirmed that our Hush Covers™ sound control provided an average reduction around the perimeter of the test chiller of 6.8 dB(A), exceeding initial expectations. Results are shown in table on the next page (4), which showcase the before and after octave band readings.
BRD coordinated directly with the OEM and visited the manufacturer’s facility to perform installation prior to shipment so the units delivered to the site pretreated and turnkey ready!