Here are 10 easy-to-apply, affordable noise reduction solutions that could be used ideal across market. Get far more data about engine silencers
1. Damping
Ordinarily used in applications such as chutes, hoppers, panels and tanks, damping ordinarily uses two noise reduction approaches: layer damping, in which a layer of bitumastic damping material is stuck to a surface, and constrained layer damping, that is more rugged and includes construction of a laminate.
Maxideck and Maxiboard from Sound Reduction Systems (SRS) can help with soundproofing for floors. Maxideck, an acoustic flooring solution, could be used in kitchens and bathrooms. It offers higher levels of airborne and effect insulation when used on timber. It could be used to comply using the Constructing Regulations Authorized Document E (2003), is easy to set up and is only 28mms thick.
Maxiboard soundproofing for ceilings and floors can also assist meet Part E Regulations and may be used to type enclosures and independent structures. It takes screws and nails direct, and is exceptionally durable, yet only 17mms thick.
2. Fan installations
Curiously, when fans operate at peak efficiency, they are at their quietest. Common noise reduction features are bends close to the fan and dampers. To reduce down on as much as 12 dB, make sure at the very least 2-3 duct diameters of straight duct amongst any function that could disturb the flow and the fan itself.
3. Ductwork
Commonly used in extraction, ventilation and cooling, ductwork entails openings in walls and enclosures. As an alternative to fitting silencers, it really is typically achievable to attain a 10 - 20 dB reduction in airborne noise from a duct or opening by lining the last bend within the ductwork with foam or fibreglass, or constructing an absorbent, lined right-angled bend to match around the opening.
SRS has two products which can be used. Acoustic Socket and service boxes are made from two layers of 10mm-thick high-density gypsum-based board and can make sure the acoustic integrity of any metal or timber-framed separating wall containing sockets and/or services. Meanwhile, Soundstop 5 is actually a multi-purpose acoustic barrier that is excellent for ceiling voids or within partition walls. It reduces room-to-room noise by as much as 46dB.
4. Fan speed
In axial or centrifugal flow fans, you could increase noise control simply by altering control systems or pulley sizes and resetting dampers.
5. Pneumatic exhausts
Pneumatic exhaust noise could be decreased by as much as 30dB by fitting silencers. For back pressure, fit a larger coupling and silencer; for clogging, you'll need a straight-through silencer, though various exhausts is often manifolded into a single, bigger diameter pipe.
6. Pneumatic nozzles
Pneumatic nozzles are generally used for cooling, drying and blowing. You could normally replace the current nozzles for quiet, high-efficiency units that could lower noise by as much as 10 dB.
7. Vibration isolation pads
Normally used on machine feet, pumps and mezzanine installations, vibration isolation pads are often produced of rubber or bonded cork and lessen vibration and noise pollution.
SRS's Acoustilay system is perfect for beneath washing machines. It improves the sound-insulation efficiency of timber floors and substantially reduces influence noise through concrete and timber floors. Acoustilay is simply laid under most floor finishes and can replace traditional carpet underlay.
8. Current machine guards
In an open set of machine guards, halving the 'gap' open area can decrease noise pollution by 3 dB. Minimizing the openings, including flexible seals, by 90% can lower noise by 10 dB.
Maxiboard with Coustifoam lining is best for this. Coustifoam is definitely an acoustic lining to soffits or walls, or is often laid more than the back of open-cell suspended ceilings. Its flexibility allows it to be easily formed about penetrations or contours.
9. Chain and timing-belt drives
Quieter timing belts with various tooth profiles aimed at controlling noise can replace noisy chain drives. A new sort of belt for noise-critical applications uses a chevron tooth pattern that may reduce noise by up to 20 dB.
10. Electric motors
The electric motors that drive fans and pumps is often replaced by general-duty motors which might be as much as 10 dB quieter. These might be phased in to the system over a time frame.
