Exhaust Silencers

A key element of a complete noise control packaged solution for power generation activities, via diesel or gas engine gensets, is the treatment of exhaust gases. Without effective exhaust gas treatment, the overall noise control design won’t be effective in reaching the client specification. Equally as important is the careful venting and potential after-treatment of these gases in order to move them away from the engine intake ventilation system and from human consumption. In order to protect employees from excessive plant noise and to comply with statutory regulations, installing exhaust silencers will support the delivery of an effective noise control solution, eliminate noise-induced hearing damage of personnel and prevent wider environmental noise issues.

Noise reduction can be attained using two principles of design specification – a reactive silencer affects noise reduction through reflecting and interfering with the transition of sound waves through the silencer. An absorptive silencer affects broadband noise by using an absorptive acoustic infill design and provides a low pressure drop.

We provide exhaust silencer noise control solutions to a wide range of sectors and disciplines. Working with consulting engineers from design and specification through to contractors and clients for project implementation – we commonly deliver exhaust silencer systems to the power and process sectors;

Optional Design Features

We have a wide range of add-on options and components to complement and complete you exhaust silencer configuration or project installation. Please consult with our of our specification team to learn more – we can deliver you a turn-key project solution which integrates a full noise control enclosure or treatment package, supplemented by a complete exhaust silencer configuration:

• Catalyst
• Integrated spark arrestors
• Special outdoor protection (metal spray)
• Other material (stainless steel, corten steel)
• Flanges, counter-flanges, gaskets, bolts
• Supports

Exhaust Silencer Solutions

Wiltech Acoustics extensive in-house engineering, manufacturing, and test facilities ensure that both the mechanical and acoustic design is optimised for any application. Our exhaust silencers can be customised in order to suit a wide variety of projects. With high performance installations across multiple sector applications, our products are trusted to deliver effective noise control, integration into the wider system of application and guarantee long-term durability.

Vent Silencers

In process, petro-chemical and electricity power generation plants there are typically numerous safety and control valves depending on the system configuration. The opening of these valves to vent steam, gas or vapour is accompanied by very high levels of noise. In order to protect employees from excessive plant noise and to comply with statutory regulations, installing vent silencers may reduce accidents arising from shock reactions, eliminate noise-induced hearing damage of personnel and prevent wider environmental noise issues.

Vent silencers are designed to reduce noise level of exhaust piping to the atmosphere for pressurized gaseous fluids, such as air, vapour, natural gas, nitrogen, oxygen, carbon dioxide, etc. They can be installed downstream any device acting as a link between a container of pressurized gaseous fluid and the atmosphere. The vent silencer can also provide high or low back pressure relief for the system ensuring proper operation.

Noise reduction can be attained using two principles: a reactive section to attenuate the low frequencies, providing broad band noise reduction; an absorptive section for high frequency noise mitigation. Vent silencers can be reactive, absorptive or combined type depending on applications and required attenuation, available up to 75 dB(A).

Specification