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:
Non-combustible – UL94 V0 fire rating on both Soundmesh G8 facing and base materials
Excellent UV, heat and aging resistance
Suitable for outdoor applications
Extremely lightweight and self-supporting
Easy to handle, cut and install
Exceptional thermal insulation
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.
Hear how Megasorber damping materials help to reduce the impact vibration noise:
3. Super Quiet System
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:
Soundproofing Lining for Power Generator Enclosure
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 eroded away. As a result, the genset needed refurbishment.
Megasorber FM25, 25mm thick acoustic foam with a fireproof sound-absorbing Soundmesh G8 facing, was specified by the customer.
With Megasorber FM25, there is no need for perforated metal or glasswool. Megasorber FM25 can be easily installed with Megasorber A200.
As a result, our client has subsequently increased their production output as well as gained significant labour cost savings during the installation
Megasorber FM25 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 FM50 is recommended.
Durable Soundproofing System for Australian Defence Force Gensets
The Australian Defence Force's gensets have 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
Compact Soundproofing System for Blower Enclosure
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 a 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 is compact and highly effective. Significant cost savings were achieved by reducing the enclosure size
and soundproofing installation costs.
Compact Soundproofing Solution for 1,200 KVA Genset Enclosures
Measured at 115dB(A), the engine generates a 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 a high level of low-frequency structure-borne noise.
The Megasorber compact soundproofing system can consist of:
Megasorber D14, a self-adhesive constrained-layer
vibration damping sheet, applied onto the metal structure first (see photos below) to reduce the low-frequency structure-borne noise effectively.
Megasorber FM50 (or P100) applied onto the top to provide much-needed noise reduction of the air-borne noise. FM50 is a 50mm thick, non-combustible, light-weight
acoustic foam with our unique Soundmesh® G8 fireproof sound-absorbing facing. P50 is a 50mm thick, sound-absorbing polyester-wool
with Soundmesh® G8 fireproof acoustic facing. P100 is a 100mm thick.
Compact system: (1) application of damper D14; (2) application of P100; (3) typical finish