Stack Silencers, Industrial Silencers, Sound Absorbing - Silentec
Over 30 years experience in noise, gas flow and blast door solutions
Silentec – design, manufacturing and consultation in noise reduction, gas flow and blast proof doors, specializing in acoustics, vibration abatement and building acoustics. Products include steel stacks, cold stacks, boiler stack, industrial stack, stack silencers, industrial silencers, exhaust silencer, vent silencers, steam silencers, reactive silencers, exhaust muffler, membrane silencer, no-clogging silencer, cartridge silencer, ventilation silencer, acoustic louvers, intake silencer, hybrid silencer, noise barriers, acoustic barriers, acoustic wall, noise screen, infrasound control, Helmholtz resonator, soundproofed cabins, soundproofed personnel cabins, acoustic enclosures, soundproofed building, HRSG thermo-acoustic casing, HRSG acoustic shroud, HRSG silencer, gas turbine exhaust system, generator exhaust system, generator muffler, generator silencing, blow-off silencer, water tower noise abatement, sound absorbing panels, expansion joint, visco-elastic dampers, vibration isolators, turning vanes, blast doors, acoustic hangar doors, test cell doors, door bottom drop seal, acoustic seal, automatic door drop seal, acoustic door pneumatic seal, and soundproofed windows. Consulting and installation services. Noise surveys, noise diagnostic testing, noise simulation, noise map, flow simulation, CFD analysis, stack plume simulation, stack emission dispersion simulation, environmental noise assessment, noise control. Noise performance guarantee. Industries served include power generation plants, aircraft engine testing facilities, jet engine test cell, mines, quarries, cement, metals, petrochemical, food, beverages, pharmaceutical and manufacturing plants, HVAC contractors, municipalities and residential clients.

Industrial Gas Turbine, Power Generation Facilities

Silentec works with power generation equipment vendors to control environmental and workplace noise. We provide full noise support, as follows:
- Environmental noise assessment, including infrasound survey, criteria   establishment, noise budgets to various facility components and   forecast community noise levels.
- Design, manufacture & install silencers & acoustic enclosures and   barriers.
- Finally, post-construction noise acceptance testing.
Turbine-generator building. Air inlet silencer on the right hand side

Clean and Quiet exhaust systems, GE Frame 7 combustion gas turbines

Silentec participated in the engineering, manufacturing and installation of the emission control system for the exhaust of frame 7 General Electric gas turbines for power generation plants. On the plant shown, Silentec worked on the gas stream and envelope. It includes thermo-acoustically lined exhaust ducts, casings and stacks, silencer baffles and flow improvement components. Silentec guaranteed workplace and environmental noise levels as well as a low pressure drop. Construction was completed in 2005. Performance delivered.

The picture shows the 17' diameter x 110' high silenced stack downstream SCR of the power gas turbine

Alaska's clean coal power plant is also quiet!

Quiet is expected around Healy, Alaska. Unsilenced noise from coal smoke stack - originating from induced draft fans, can be heard over large distances. Silentec designed and manufactured stainless steel dissipative silencer baffles for the smoke stack. The silencer design included modal filtering and other features, rendering it compatible with future loudspeakers retrofit for active noise attenuation.

Enclosure for 112 MW Electric Generator

This 112 MegaWatt electric generator enclosure is soundproofed and weatherproof, and can be used indoors and outdoors. It comes with vibration damped panels, silenced ventilation, fire extinguishing, electric panels\cabling, STC rated access panels\doors and other access features. It can be shipped totally shop assembled where size permits - or it can be shipped in modules, for easy field assembly.

Power Generation - Gas Compressor

Natural gas compression building and blow-off silencer stack directed away from residences. The picture shows a technician holding a microphone boom to measure sound power from inlet louvers\silencers.

Heat Recovery Steam Generators

Silentec is a vendor of Heat Recovery Steam Generator equipment. This includes HRSG casing, ducts, structure, stack with damper, flexible joint, SCR structure, acoustic shroud, enclosure and silencer.

Silentec provides strong field support to assist its customers & erectors and to fix field problems in a timely manner. The pictures below are examples of projects involving Silentec.


HRSG exhaust, prior to stack erection

Partial enclosure on HRSG casing to meet noise requirement

HRSG & stack during erection @ South Texas Energy