Extraction fan & forced air
Chimneys and silencers for extraction fans, ovens, purifiers, thermal power stations
Silent chimneys for the boiler room of the Parliament buildings and Supreme Court of Canada, Ottawa.
Hybrid silencer in extraction fan duct. The absorptive module reduces wide frequency range noise. The responsive module reduces noise at the predominant frequency.
Absorptive silencer, with very low air resistance, inserted and suspended at the end of the chimney.
Silencer-chimney, hybrid with sealed membrane anti-clogging by gas particles.
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Absorptive silencer in chimney or combustion gas duct, up to 500°C, with independent internal expansion, anti-explosion and thermo-acoustic coating.
High flow axial fan
Silencer for Axial Fan
Underground mine axial fan silencer, in a prefabricated soundproof building.
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Gas turbine
Gas Turbine Silencers and Chimneys
Exhaust silencer and noise shield for heat recovery and steam generator (HRSG).
Thermo-acoustic chimney, silencers, guides and noise barriers for emissions control system (SCR).
Steam vent & compressor
Vent Silencers
Steam silencer
High pressure module
Compressor silencer
Low pressure module
Vacuum pump, blower
Silencer for Blower & Vacuum Pump
Diesel generator
Silencer for Diesel Generator
Test bench, wind tunnel
Silencer for Wind Tunnel and Engine Test Bench
Other ventilation
Silencer - Other Commercial Industrial Ventilation
Exhaust silencer – 8,000 CFM dust collector
Quiet – chimney with sealed anti-clogging cartridges. They can be replaced from the side or from above.
Acoustic louvers for air intake
DirECTING NOZZLES, diffusers, expansion joints & others
Other Gas Flow Devices
Devices at the end of the chimney
Expansion joint for chimney and hot ducts
Exhaust gas diffuser
Gas Flow Guidance and Screener
Silentec Support Engineering
Support Engineering
Silentec works with the customer and their consultant to formulate the optimum solution and to certify/guarantee the aero-thermo-acoustic performance. Various numerical simulations and factory/laboratory tests are used, as required, including :
Measurements taken in the chimney of gas noise-pressure-velocity profiles.
Tests on a scale model, to optimize the design/aeroacoustic performance of chimney-silencers and other devices.
Tests to prove the aeroacoustic performance of silencers, carried out on a full-scale test bench, with a 65,000 CFM fan.
Simulation of pressure drops and velocity profiles in chimney pipes and in the environment, with and without guideways, silencers and devices at the end of the chimney.
Directing nozzles at chimney inlet and pressure gain.
Silencer baffles, gas velocities, turbulence noise and pressure loss.
Chimney end cone, plume and dispersion of gases in the environment.
Chimney flue design with lower noise and flow resistance.
Detail drawings and structural calculation of chimney.
Thermal stresses and buckling by exhaust gases during start-up.
Design calculations for thermo-acoustic insulation and independent expansion of the internal-external walls of chimney ducts.
