Our acoustical designs have been applied to nearly every industry and type of heavy industrial equipment, including reciprocating and diesel engines, gas and steam turbines, generators, compressors, pumps, coolers, conveyors, blowers, and fans. We specify or design the performance of noise abatement measures, such as:
- Acoustical buildings
- Acoustical equipment enclosures
- Acoustical ventilation systems
- Custom-designed silencers (baffles or mufflers)
- Sound barriers
- Acoustical pipe lagging
Before finalizing the designs, our engineers model various mitigation options, so that noise reduces to the level required by the project specifications in the most cost-effective way. To produce effective and economical noise reduction, we balance our historical database costs for one silencing treatment against other treatments, while manipulating plant layout, equipment layout and building structure. We term this our "Balanced Design Approach™".
In our Balanced Design Approach™, acoustical performance of each treatment is "relaxed" or "enhanced" depending upon overall price. For example, if increasing the noise reduction requirements of a turbine intake silencer is less expensive than raising the STC (Sound Transmission Class) of a building's walls, then an upgraded silencer will be our recommendation.
Silencer Performance Calculations
Sophisticated computational tools based on Finite Element and Boundary Element Methods and Computational Fluid Dynamics (CFD) are used in the design of our silencers. ANSYS and SYSNOISE are two software platforms we employ to evaluate the structural and acoustical performance and adequacy of our silencer designs. ANSYS tests our silencers for deterioration, stress and fatigue, while SYSNOISE is used to identify and rank sources of flow-induced noise.
Among other applications, we use Computational Fluid Dynamics (CFD) analysis to verify the design of our quiet HVAC systems, gas turbine exhaust silencers, and air-cooled condenser baffles. With CFD, for example, we are able to evaluate the properties of turbine gas flow and how this flow interacts with the complex surfaces of the exhaust stack and silencers. Understanding the nature of the gas path flow allows us to limit the amount of back pressure we add to the entire system.
View examples of modeling output from silencer designs
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