Power generation is a very cost-competitive industry. With engine noise levels typically about 110 dB(A), it is a challenge to reduce noise levels economically. In addition, the acoustic materials are exposed to high temperatures, potential fluid or fuel spills, engine maintenance and a high air-flow environment.
Megasorber has taken on these challenges and successfully developed a range of soundproofing products and soundproofing systems to suit various requirements.
With Megasorber's patented Soundmesh® G8 technology (U.S. Patent No. 8167085, Canada Patent No. 2674986, Australia Patent No. 2009206197), it is possible to have a fireproof, tough, durable as well as sound-absorbing material.
Megasorber FM is one of the most suitable soundproofing materials for genset enclosures:
Megasorber soundproofing systems are compact and light weight. Typical systems consist of two key components:
Line enclosure with Megasorber FM50 (or FM25 if space is limited). A schematic drawing is shown below:
The sound absorption of Megasorber FM50 and FM25 are shown below.
It is evident that the FM50 and FM25 have been engineered to maximize the sound absorption of the engine noise. The test results reveal that typical noise reduction could be up to 10 dB(A) when lined with Megasorber FM50.
The D10 and D14 vibration damping sheets are designed to reduce the low frequency structure-borne noise effectively and the FM50 sound absorber is designed to absorb the air-borne noise effectively. In addition, Megasorber D10 and D14 increase the sound transmission loss, providing extra noise blocking-out effect, especially for engine enclosure constructed with thin and lightweight panels.
Line the enclosure with Megasorber DIS8 sandwich system and FM75 or Megasorber P100. This unique system has brought the noise level down to a very low level, such as 65dB(A) at 1m and so on. Please contact us for a tailored design.
The following applications highlight just a few ways Megasorber customises soundproofing solutions:
Originally, glasswool and perforated metal had been used to line the enclosure. Over 24 months of operation, the genset became very noisy as the glasswool gradually erroded away. As a result, the genset needed refurbishment.
Megasorber FM25BKA, 25mm thick acoustic foam with a fireproof sound-absorbing facing and self-adhesive backing, was specified by the customer.
With Megasorber FM25BKA, there is no need for perforated metal or glasswool. Megasorber FM25BKA is a simple 'peel and stick' installation which does not require welding or riveting of any perforated metal sheeting.
As a result, our client has subsequently increased their production output as well as gained significant labour cost savings during the installation process.
Megasorber FM25BKA can also help you to achieve an increase in your factory output as well as cost savings in soundproofing installation.
If a lower noise level is required, then the thicker Megasorber FM50BKA is recommended.
With the unique Soundmesh® G8 fireproof acoustic facing, Megasorber FM50BKA provides excellent sound absorption at low frequencies, typically with a peak sound absorption from 250Hz to 2,000Hz.
The Australian Defence Force's gensets have a very high and stringent specifications: insulation material MUST survive up to 150°C for 6 months duration. The army placed their full confidence in the proven Megasorber materials.
Australian Defence Force gensets with Megasorber acoustic materials
Megasorber was asked to reduce a very low frequency tonal noise from an acoustic enclosure for blowers. The enclosure was extremely bulky and heavy due to the low frequency noise requiring a very thick glasswool to absorb such noise. The glasswool or rockwool must be covered with perforated metal sheet, making it very expensive to construct.
Using the Megasorber 4-Fold Approach® we helped our client develop a compact and light-weight Megasorber soundproofing system (see photo on right) consisting of:
The Megasorber soundproofing solution was a very simple 'peel and stick' installation. Significant cost savings were achieved by reducing the enclosure size and soundproofing installation costs.
Measured at 115dB(A), the engine generates high level of air-borne noise. Even with well designed engine isolation mounts, there is still a high degree of vibration of the enclosure panels, radiating out high level of low frequency structure-borne noise.
The Megasorber compact soundproofing system can consist of:
Compact system: (1) application of damper D14; (2) application of P100BKA; (3) typical finish
Traditionally, these gensets rooms are line with glasswool or rockwool with perforated metal sheets. This system is difficult and expensive to construct and operators are experiencing a lot of Occupational Health & Safety (OHS) issues. The stringent fire regulation on buildings under Building Code Australia (BCA) has, however, made it almost impossible to use any alternative materials such as polyurethane foam.
Megasorber is very proud to provide a unique soundproofing solution to this challenge. The solution consists of:
(1) soundproofing of an engine room with P50BK; (2) plastic pins on wall panels; (3) splitters with P100BK
Megaosrber P100GR with water repellent Soundmesh® G8 facing
used to line all the walls & ceiling of the compressor house of Orica Building, Kooragang Island