Universal Silencer
Gas Turbine Silencers
Inlet Air · Exhaust · Complete Turbine Noise Control Systems
Dürr Universal Silencers designs and manufactures complete noise control systems for gas turbines used in power generation, pipeline compression, LNG service, and industrial applications. Gas turbine noise control is a system-level engineering challenge — inlet silencers, exhaust silencers, turbine enclosure panels, and ventilation silencers must be designed together to meet project noise targets while protecting turbine performance. Dürr Universal Silencers provides single-source responsibility for the complete turbine acoustic package.
Inlet Air Silencers
GTS-IGas turbine inlet silencers attenuate the broadband and tonal noise generated at the compressor inlet. The inlet silencer is typically the largest and most acoustically demanding component in the turbine noise control system, as it must provide high insertion loss while maintaining the low pressure drop required to protect turbine performance and heat rate.
Design Features
- →Splitter (baffle) construction for low pressure drop
- →Absorptive fill rated for turbine inlet service
- →Integral weather hood and rain protection
- →Anti-icing provisions available
- →Inlet filter house integration available
- →Structural design for wind and seismic loads
- →Hot-dip galvanized or painted carbon steel
- →Stainless steel available for corrosive environments
Performance Data
- →Insertion loss: 15–35 dB(A) depending on configuration
- →Pressure drop: typically 0.5–2.0 in. w.g.
- →Velocity: 1,500–3,500 FPM face velocity
- →Temperature: ambient inlet air service
Exhaust Silencers
GTS-EGas turbine exhaust silencers handle the high-temperature, high-velocity exhaust gas stream leaving the turbine. Exhaust silencers must provide effective noise attenuation while withstanding continuous operating temperatures of 900–1,100°F and higher. Both reactive and absorptive designs are available; combination designs are used for maximum insertion loss.
Design Features
- →High-temperature absorptive fill (mineral wool or ceramic fiber)
- →Perforated inner liner for fill retention
- →Thermal expansion provisions
- →Carbon steel with high-temperature paint or aluminized steel
- →Stainless steel construction for highest temperatures
- →Expansion joints at inlet and outlet connections
- →Drain provisions for condensate
- →Insulation jacketing available for surface temperature control
Performance Data
- →Insertion loss: 20–40 dB(A) depending on configuration
- →Operating temperature: to 1,100°F continuous; higher on special order
- →Velocity: 3,000–8,000 FPM
- →Pressure drop: 0.5–3.0 in. w.g.
Inlet/Exhaust Enclosure Systems
GTS-SYSComplete turbine noise control systems integrating inlet silencing, exhaust silencing, turbine enclosure panels, and ventilation silencers into a coordinated acoustic package. Dürr Universal Silencers provides system-level acoustic analysis and design to meet project noise targets at specified receiver locations.
Design Features
- →Coordinated inlet + exhaust + enclosure design
- →System-level acoustic modeling to receiver locations
- →Turbine enclosure acoustic panels
- →Ventilation and cooling air silencers
- →Lube oil cooler fan silencers
- →Exhaust stack and diffuser design
- →Single-source responsibility for turbine noise package
- →Coordination with turbine OEM and packager
Performance Data
- →System noise targets: typically 65–85 dB(A) at 1 meter or specified distance
- →Compliance with ISO 10494, ANSI/ASME standards
- →Third-party noise measurement and verification available
- →Acoustic modeling: ISO 9613-2 propagation methodology
Construction & Materials
Compatible Turbine Types
- →Aeroderivative gas turbines (GE LM series, Rolls-Royce, P&W)
- →Industrial frame gas turbines (GE Frame 5/6/7/9, Siemens, Solar)
- →Small industrial turbines (Solar Centaur, Taurus, Mars)
- →Combined cycle power plant turbines
- →Simple cycle peaking turbines
- →Mechanical drive turbines (compressor and pump drives)
- →Offshore platform turbines
- →Cogeneration (CHP) turbines
Typical Applications
- →Natural gas pipeline compressor stations
- →Combined cycle and simple cycle power plants
- →Cogeneration (CHP) facilities
- →LNG liquefaction and regasification terminals
- →Offshore oil and gas platforms
- →Industrial power generation
- →Mechanical drive applications
- →Refinery and petrochemical power generation
Selection Parameters
Engineering Consultation
Gas turbine noise control projects require system-level engineering. Contact Northeast Controls Inc. with your turbine make and model, site noise limits, and project specifications for application engineering and a budgetary quotation.
1-201-419-6111 · [email protected]
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