Once and adequate enclosure is in place the silencing of equipment installations in industrial environments is basically a problem of attenuating the noise from the atmospheric inlet and the exhaust openings. ArtUSA Acoustics sound attenuators and silencers are engineered to achieve a maximum insertion loss with a minimum pressure drop and feature airfoil design for efficient aerodynamic performance, as well as superior acoustical materials and totally galvanized steel construction. ArtUSA Acoustics sound attenuators and silencers are designed and engineered to eliminate acoustical fill entrainment by the air stream and reduce to a minimum the absorption of gases and particles by the acoustical fill. Reliability and performance are guaranteed since the best basic configuration and materials are utilized. ArtUSA intake and/or discharge silencers work on blowers, compressors, engines, vacuum pumps and gas vents. Since its inception ArtUSA has tackled silencing problems covering the entire spectrum of industries and applications. Our acoustical and mechanical engineers can design complete air inlet silencing systems, including filter houses of various configurations.

Silencers and Sound Attenuators 

• ArtUSA Silencers

ArtUSA Silencers are custom engineered to provide:

optimum acoustic performance
superior aerodynamic characteristics
field erection without special equipment
easy maintenance

ArtUSA services the industrial needs for enclosures and intake and/or discharge silencers on blowers, compressors, engines, vacuum pumps and gas vents. Since its inception it has tackled silencing problems covering the entire spectrum of industries and applications. Each inquiry is individually handled by our Sales-Engineering Department which offers 25 years of combined experience with application, design and fabrication of industrial silencers. ArtUSA Silencers is ready and able to solve your silencer problems. In the event pressure drop, silencer envelope or nozzle orientation is your concern, let us know.

Noise Control for Fans & Exhausts  – This specialty product is designed for intake or exhaust fans of large equipment. Large equipment usually requires a substantial amount of airflow but untreated fan areas can create, and even spread, noise unnecessarily. These sound attenuators handle the noise without affecting needed airflow - they are often called silencers..

Silencers normally contain one or more passages which are lined with sound absorbing materials, incorporated in structures that protect them from erosion from air flow. To attenuate low frequency sounds, thick baffles widely spaced are used; whereas for high frequency sounds, the best absorption is obtained by using thin baffles closely spaced. Middle frequency sounds can be absorbed by both thick and thin baffles, but intermediate thickness baffles are preferred. Increased attenuation, at times, may be achieved by incorporating bends or elbows into the silencer.

Acoustical Ventilation Systems

ArtUSA noise Control engineers design quiet ventilation systems. Quiet ventilation is needed when breakout noise is a problem or when the ventilation system itself is the dominant noise source.

Industrial equipment creates heat build-up inside an enclosure or facility. Channeling air over the equipment supplies cooling and removes heat. Noise from equipment inside the building escapes through openings that intake and exhaust cooling air. These openings must be silenced if it is not to disturb the surrounding environment.

In some cases, the interior of the building is quiet but noise from the large ventilation fans that bring in and expel air is a problem that must be attenuated.

To treat noise breakout or fan noise, we utilize:

• Quiet fans (axial or radial)
• Acoustically lined ridge vents
• Acoustically lined weatherhoods
• Acoustically lined plenums
• Acoustically lined louvers
• Custom-designed silencers

Silenced Turbine Intakes & Exhausts

ArtUSA builds quiet into turbine intake and exhaust systems as part of our total acoustical facility design, treating intake and exhaust noise with:

• Inlet and exhaust silencers
• Air inlet filtration
• Duct sound abatement

Inlet and Exhaust Silencers

ArtUSA guarantees the quiet performance of the silencers we supply. Our silencers are tested for various DIL's (Dynamic Insertion Losses) to arrive at the silencer design requirements needed to meet the noise level target while maintaining acceptable pressure drops. We installs:

• Intake silencers
• Exhaust silencers in a vertical stack
• Exhaust silencers in horizontal ductwork
• HRSG (Heat Recovery Steam Generator) exhaust stack silencers

Air Inlet Filtration

Our acoustical, mechanical and structural engineers can design complete air inlet silencing systems, including filter houses of various configurations.

Duct Sound Abatement

Breakout noise and vibrations from intake and exhaust ducts can be enormous depending on engine size. To treat duct noise,IES offers acoustical:

• Lagging
• Double wall construction
• Vibration isolation
• Acoustic expansion joints

Gas Turbine Silencers

Once and adequate enclosure is in place the silencing of gas turbine installations in industrial environments is basically a problem of attenuating the noise from the atmospheric inlet and the exhaust openings. In installations in residential and rural areas, the sound from the gas turbine enclosure, auxiliaries, and driven equipment also must be considered in the silencing program. Some degree of attenuation can be attained by natural factors, such as divergence, directivity, air absorption, and duct configurations. Further sound control, however, must be obtained through the use of adequate silencers.

Silencers normally contain one or more passages which are lined with sound absorbing materials, incorporated in structures that protect them from erosion from air flow. To attenuate low frequency sounds, thick baffles widely spaced should be employed for optimal performance; whereas for high frequency sounds, the best absorption is obtained by using thin baffles closely spaced. Middle frequency sounds can be absorbed by both thick and thin baffles, but intermediate thickness baffles are more desirable. Increased attenuation, at times, may be achieved by incorporating bends or elbows into the silencer.

It is important to have experience to determine what combination of absorptive and reactive treatment will most economically produce the required acoustic performance. A turbine exhaust system solution must provide materials and designs that enable highly effective low-frequency noise attenuation and tolerate thermal growth, thus giving long, trouble-free performance. Inlet noise, by contrast, has predominantly high frequency content where an absorptive silencer, in series with the inlet filtration system is required to quiet the turbine. The full system approach--acoustic and aerodynamic--is crucial to optimizing the performance of the turbine and minimizing unnecessary costs. ArtUSA uses its proven design, engineering, manufacturing and management experience to provide a seamless package which offers the highest filtration efficiency and the most effective noise control.

ArtUSA engineers and manufactures noise control and air filtration solutions for gas-fired turbines and diesel engines that are used for stationary and portable power generation applications. ArtUSA has a vast portfolio of successes with applications as small as 100 kilowatts to those as large as several hundred megawatts, and has custom-designed systems installed on all major turbine brands, including GE, Siemens-Westinghouse, Pratt & Whitney and ABB.