Sound file: typical chiller low-frequency noise reduction,
The noise from chillers, air conditioning plant, condensing units, HVAC, heat exchangers, dry coolers etc provides a host of opportunities to waste resources on inappropriate noise control measures that either don't work or that reduce efficiency - or both. In our experience, a substantial proportion of the noise reduction measures used on these units (acoustic enclosures, silencers and barriers) are simply ineffective as they address the wrong problem.
There are only 3 types of noise generated by these systems: broadband air noise, compressor tones and low-frequency fan hum. The hum, for example, cannot be addressed using silencers and barriers, and yet these are often mistakenly fitted at great capital and running cost (reduced efficiency).
10 minutes with a smartphone is all it takes to avoid costly mistakes by determining which sources require treatment and what is the best noise control option for the particular problem. Anyone can do this.
This approach not only dramatically reduces typical noise reduction project costs, but it can even substantially improve system efficiency (by 23% on one data centre application). Find out how best to reduce the noise from chiller, condensing, cooler and related units here >