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Mechanical & Electrical Competitive noise and vibration control

Noise & Vibration Controlin M&E The operation of mechanical and electrical(M&E) services generates varying degreesof noise and vibration which, if leftuntreated, have the potential to causedamage to the equipment itself as well asdisturb occupants within a building.

The level of noise and vibration control required for M&Ewill often be specified by the acoustic consultant ornoise and vibration engineer, with the specificationdetermined by a number of factors, including:

• Building Regulations

• Noise at Work Regulations

• Employer requirements

• Building type

• Machine tolerances

Effective noise and vibration control will help protectM&E equipment, which not only prolongs the life of themachinery it also reduces the cost and frequency ofmaintenance.

Where noise and vibration are likely to cause adisturbance to building occupants, the objective of anyM&E treatment is to prevent vibration from propagatinginto a building or stop airborne sound from transferringinto occupied spaces and becoming nuisance noise.

In many cases a combination of noise and vibrationcontrol solutions are required to achieve the specifiedperformance levels.

The Complete Solution: Noise & Vibration ControlCMS Acoustics and sister company, CMSVibrations, provide the complete solutionfor noise and vibration control. Where M&Etreatments are concerned, this enables youto benefit from a holistic service approachwhich guarantees to deliver fully integratedand competitive systems for all M&Eapplications – underpinned by highlytrained technical and engineering teams.

Technically sound The technical teams at CMS Acoustics and CMSVibrations have a proven record of collaborating on M&Eprojects which require a combination of noise andvibration control solutions, as well as operatingindependently where specialist acoustic or vibrationsupport is required.

Understanding how to effectively control noise andvibration in M&E, CMS technical services can valueengineer any design to achieve the specified performanceat the most competitive price.

System-ledWith the broadest range of noise and vibration productsfor M&E, CMS is able to meet the requirements of anyproject. Whether a critical or non-critical application, CMScan design, manufacture and install the full range of M&Etreatments.

For detailed guidance on selecting a noise or vibrationcontrol system for your M&E project, call 01925 577711or email info@cmsacoustics.co.uk

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Fawley Oil Refinery

The Challenge ExxonMobil required a low frequency sound controlsolution, to reduce noise output from two industrial fans atFawley Oil Refinery, the largest oil refinery in the UK.

CMS Acoustics helped ExxonMobil by evaluating the noisereduction required and recommending a combination ofsystems that would specifically target the high levels of lowfrequency sound generated by the fans.

The Solution CMS Acoustics designed and supplied SuperLagQuietSlab Laminate with Acoustic Barrier Type WB10 forthe fan casings and associated ductwork. A multi-layered, high performance system with two layers of125mm thick SuperLag QuietSlab Laminate and multilayers of Acoustic Barrier Type WB10, were bonded ontothe fan casings and ductwork.

The ResultsThe high performance system significantly reduced thenoise generated by the fans, enabling ExxonMobil toachieve compliance with the Noise at Work Regulations.

Cottam Power Station

The ChallengeTo meet the specification for a Flue GasDesulphurisation (FGD) project at Cottam power station,Vinci Services needed to soundproof the FGD units andprevent noise and drone reaching the surroundingvillages.

The SolutionDamping Compound Type DC, a 3mm thick materialwhich is applied to metal or plastic to reduce radiatednoise levels, was sprayed onto an aluzinc raw gas duct,

which is used to absorb sulphur dioxide when it isomitted from the chimney. In a different part of the plant,CMS Acoustics’ Damping Sheet DS03 was adhered tothe aluzinc metal panels of an induced draft (ID) fan,which is used to remove sulphur dioxide from the boilersinto an absorber.

The ResultsThe installation of Damping Sheet DS03 and DampingCompound Type DC at Cottam power station exceededthe original specification and ensured that the FGD unitswere effectively soundproofed.

Joe Hendry, Vinci Services, said: “The ID fan is anintegral part of the sulphur dioxide removal process, butit is particularly loud, so it was necessary to find aneffective soundproofing system. CMS Acoustics’Damping Sheet DS03 was easy to install, providing acost-effective solution.”

Bristol Civil Justice Centre

The Challenge When Miller Construction built a new civil justice centrein Bristol, anti-vibration control was a key consideration.A six storey building, the plant room housing allassociated equipment to service the centre, includingchillers, pumps and air conditioning units, was situatedon the roof.

Effective isolation of the area was essential to stop thevibrations from becoming structural noise and travellinginto the building, which could potentially have causedinterference with court proceedings and intelligibility ofevidence.

The Solution Kinetics RIM-C was specified by acoustic consultants,Deane Austin Associates, to deliver complete isolation ofthe plant room floor concrete slab. Offering excellentimpact and airborne noise ratings, the system achievesits performance by ‘floating’ the concrete floor slab andcreating an air void between it and the sub structure.

The Results The Kinetics RIM-C system was used to isolate a totalarea of 137m2, preventing machine-induced vibrationsfrom propagating into the building and noise sensitivespaces by achieving a natural frequency of 14Hz on-site.

M&E Project ProfilesFrom specification through to installation, CMS Acoustics and CMS Vibrationshave provided support on a wide range of M&E related projects, delivering costeffective solutions that help create sound working and living environments.

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The Complete Solution: Acoustic Control

CMS Acoustics provides access to the widest range of acoustic products for controlling noise in all M&E applications,including heating ventilation and air conditioning (HVAC), ductwork and lagging.

With a portfolio that includes CMS-manufactured products as well as high performance systems from market-leadingmanufacturers, CMS Acoustics guarantees to deliver the right product, at the right price – whatever the requirement.

Responding to the noise control challenge in M&E, CMS Acoustics has developed a core suite of products specificallydesigned to dampen and control sound within this specialist application.

ISO Enclosure Panels

ISO Enclosure Panels consist of prefabricated buildingpanels, jointing accessories and fittings and are typicallyused for acoustic enclosures for machinery, acousticscreens and sound havens.

Features and Benefits • High sound reduction • Extremely robust, self supporting construction • Panels can be easily demounted and relocated • Approved by authorities, fire class EI 30 – EI 120E • Lightweight and easy to handle

Plant Room Wall Lining Panels

Plant Room Wall Lining Panels provide a cost effectivesolution for controlling reverberation time and reflectedsound in plant rooms.

Features and Benefits • Excellent sound absorption • Light reflective • Good thermal insulation • Easy to handle, install and clean

Damping Sheet Type DS

CMS DS damping sheet is suitable for a wide range ofM&E applications, including air conditioning ductwork.

CMS DS damping sheet can be used in conjunction withthe CMS range of SuperLag lagging products todramatically enhance acoustic performance, particularlyat low frequencies.

CMS M&E Foams

CMS Acoustics offers a choice of sound control foamsaccording to acoustic, thermal and fire performancerequirements:

• PUNF Class ‘O’ Foam - a general purpose acousticfoam designed for internal and external duct linings,thermal and acoustic machine coverings andsuspended ceiling absorptive panels.

• Melamine Acoustic Foam - a flexible and generalpurpose foam which meets the Building Regulationsrequirements and is used for internal and external ductlinings, thermal and acoustic machine covers as wellas suspended ceiling absorptive panels.

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Product Application

SuperLag FoamLaminates

Ductwork, suspended ceilings, infills for partitions, enclosures, baffles betweenoffices.

SuperLag TypePrime

Efficient lagging for ductwork, pipes and enclosures.

SuperLag Hygienic Ideal for pharmaceutical industries and food processing areas.

SuperLag TypeAcoustishield

Typically used for air conditioning ductwork and pipework, for application on theinside and outside of systems.

SuperLag TypeTechnowrap 1

Provides a high standard of acoustic attenuation to ducts and enclosures.

SuperLag TypeTechnowrap 2

Designed for ducts, pipes and enclosures.

SuperLag Range The SuperLag range provides access to a broad choice of highly specialist acoustic materials designed to control noisein ductwork, pipe, enclosure and high temperature applications.

Features and Benefits • Quick and easy to apply • Excellent acoustic performance • Excellent temperature stability

• Excellent fire resistance • Choice of specialist systems to suit exact projectrequirements

Also in the core M&E noise control range: • Acoustic Barriers – flexible sound barriers which can be used as either a single layer or as part ofa composite to reduce the transmission of airborne and impact noise and are ideal as a barrierouter wrap for pipelines.

• Acoustic Doors – wide range of steel acoustic doors designed specifically for plant roomapplications.

• Attenuators / Acoustic Screens – cost effective and high performance attenuators and screens,including systems developed for pumps, compressors and chillers.

• SuperPhon Wall Panels – cost effective glass cloth or white polyurethane covered absorptivepanels, reducing reverberation in applications such as engine enclosures, test cells andworkshops.

Full technical datasheets for all core products and details on the complete range of acoustic solutionsfor M&E applications can be found at www.cmsacoustics.co.uk

5call 01925 577 711 www.cmsacoustics.co.uk

Competitive Noise Control for M&E

The Complete Solution: Vibration Control

Where the M&E noise challenge is vibration related, CMS Vibrations provides unrivalled technical support fromspecification through to installation. Offering bespoke product manufacture as well as exclusive access to market-leading anti-vibration systems from BSW and Kinetics Noise Control, CMS Vibrations guarantees to deliver the mostcompetitive and high performing solution for any M&E vibration requirement. This includes:

Regupol RAV & Regufoam

The Regupol RAV and Regufoam ranges of anti-vibrationsystems from BSW offer high performing and costeffective solutions to controlling vibration in all generalM&E plant applications.

The specification of a system will depend on a numberof factors, including load, area and natural frequency.

Regupol RAV• Manufactured from recycled polyurethane-boundrubber granulate

• Available in six grades, withstanding loads up to andincluding 1.5N/mm2

• Excellent dampening and isolation characteristics• Supplied in easy to lay rolls and sheets • Zero Global Warming Potential (GWP) and zero OzoneDepletion Potential (ODP)

Regufoam • Highly adaptable and completely recyclablepolyurethane (PUR) foam

• Available in six different densities and colour coded forease of identification

• Can be used for very light loads, achieving highdamping ratios and low natural frequencies

• Capable of achieving a natural frequency as low as7Hz

• Zero Global Warming Potential (GWP) and zero OzoneDepletion Potential (ODP)

Kinetics RIM System

The Kinetics Roll-out Isolation Material (RIM) system isavailable for both concrete (RIM-C) and wooden (RIM-W)floating floor applications, offering flexibility according tospecific project requirements and load bearing capacities.

Critical to the performance of the Kinetics RIM systemare KIPs – precompressed fibreglass isolators whichmaintain a constant natural frequency over a wide rangeof static and dynamic loads.

RIM-C • Ideal for all HVAC applications where a concrete floorslab requires isolation

• High performance and cost effective isolation system • Can be designed for any load range • Easy to create 25mm, 50mm, 75mm and 100mm airspaces

• Fast, simple, inexpensive installation

RIM-W • Offers a high performance isolation solution for HVACapplications where the structure cannot support theweight of an isolated concrete slab

• Can be designed for any load range • Easy to create 25mm, 50mm, 75mm and 100mm airspaces

• Fast, simple, inexpensive installation • Optional channels or nailers can be used for stiffnessand increased airspace

• Air conditioning units • Refrigeration equipment • Pumps • Lift motors

• Generators • Boilers • Presses • Guillotines

• Milling machines • Plant rooms • Inertia plinths

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call 01925 577 711 www.cmsacoustics.co.uk

Spring Isolators

Spring isolators are used to reduce the transmission ofnoise, shock and vibration produced by mechanical,industrial or process equipment into or within astructure, such as: pumps, fans, cooling towers, rooftopunits, chillers, boilers and compressors. CMS Vibrationsprovides a range of spring isolators, including:

• Free-standing – high-deflection, free-standing,unhoused, large diameter, laterally stable steelsprings which are typically used to reduce thetransmission of noise and vibration from floor-mounted, low speed mechanical equipment into abuilding structure.

• Restrained – vertically restrained spring isolationmounts which are recommended for the isolation ofequipment carrying a large fluid load which may bedrained, such as boilers.

• Housed spring isolators – high-deflection, colour-coded stable springs assembled into telescoping castiron or aluminium housing which are designed toisolate high and low frequency vibration generated byfloor-mounted mechanical and industrial machinerylocated in critical and non-critical areas.

Isolation Hangers

CMS Vibrations offers the complete Kinetics line ofvibration isolation hangers.

A broad choice of isolation hangers is available,providing a solution to vibration challenges in a widerange of applications including piping, ductwork andsuspended mechanical equipment.

Features and Benefits • Available in a wide range of load and static deflectionselections

• Hangers can be shipped fully assembled and readyfor installation

• Can be provided with labour-saving accessories forpre-loading ease in erecting pipe at a fixed elevation

• Colour-coded springs to indicate load capacity• Epoxy powder coated bracket and spring coil • Constant natural frequency in wide load range

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Vibration Isolation for M&E

Also in the core M&E vibration control range: • Kinetics Thrust Restraints – used to counteract the discharge force created by fans duringoperation.

• Flexible Connectors – prevent stresses due to expansion and contraction, isolate against thetransfer of noise and vibration, and compensate for misalignment.

• Inertia Bases – a range of pre-assembled inertia bases for adding mass to machinery orequipment.

Full technical datasheets for all core products and details on the complete range of vibrationsolutions for M&E applications can be found at www.cmsantivibration.co.uk

Northern Office:Unit 4 Eagle ParkEagle Park DriveWarrington. WA2 8JAt: 01925 577 711f: 01925 577 733

Southern Office:Unit 9Enterprise WayWickford. SS11 8DHt: 01268 568 762f: 01268 568 764

CMS Acoustics offers a range ofspecialist noise and vibration controlsystems for all sectors, includingcommercial, education, residential, retail,leisure and industrial

call 01925 577 711www.cmsacoustics.co.uk

A MEMBER OF THE CMS GROUP