Client Challenge:

A back-up power plant was to be located close to residential areas, presenting a potential noise nuisance.

Solution:

A large acoustic enclosure, complete with 6 individual engine bays and central switchgear room:

• Noise restrictions: 55dBA at 10m noise requirements, achieved through acoustically insulated cladding panel design
• Ventilation: Inlet and discharge ventilation for individual engine cells. Inlet removable for engine removal
• Maintenance: Roof access ladder and walkway
• Structural: structural calculations, and provision of internal support frame for full enclosure and roof mounted equipment

Client Challenge:

Temporary reserve power plant served by gas turbines required noise mitigation measures to limit noise emissions at the site boundary to comply with local regulations.

Solution:

A series of 10m and 12m high acoustic barriers, strategically located around site in order to provide protection to nearby areas:

• Acoustically absorbent panels: panels faced with perforated steel sheet to one side to avoid reflective noise issues
• Support structure design: Design and detailed calculations to ensure screen stability against wind loads. Designed with singular columns to reduce support structure footprint
• Installation provision: panels incorporated lifting points for quick and safe installation
• Durable Finish: ISO12944 C5 paint finish

Client Challenge:

Stringent noise reduction target, with a requirement for an enclosure to offer full capabilities for equipment maintenance, whilst also providing fire detection and suppression systems for a hazardous environment.

Solution:

Two high specification skid-mounted 316 grade stainless steel acoustic enclosures, installed with lighting, fire and gas detection systems, titanium deluge pipework and telecoms system:

• Noise Reduction: maximum noise requirement of 72dBA at 1m externally to the enclosure
• Ventilation: Run and standby atex fans, complete with dampers and discharge attenuation
• Maintenance provision: Large number of hinged access panels fitted around the close fitting enclosure, complete with lift out sections, and integrated lifting points in structural frame
• Integrated electrical installation: Lighting, F&G detection, CCTV, PAGA, UHF Tetra systems incorporated into drop-over enclosure
• Structural integrity: designed to withstand blast loads to prevent impact on nearby critical structures

Client Challenge:

To reduce noise levels from 3.3kVA diesel generators to comply with project planning requirements, whilst providing a high level of ventilation airflow for cooling of the engine.

Solution:

Acoustically insulated welded containers with structural baseplate, incorporating:

• Noise Reduction: Reduction of source noise of 111dBA to 80dBA at 1m externally to container.
• Ventilation: Inlet and outlet attenuation, complete with motorised dampers and weather louvres.
• Modular Design: Off-site installation of engine and radiator to allow full M&E installation, FAT testing prior to shipment to site, offering cost and time savings.
• Protection: Watershed roof and robust container design offer mechanical protection for the critical back-up power generation equipment.

Client Challenge:

A UK wastewater treatment facility needed to reduce pump noise which could potentially affect nearby properties.

Solution:

Nine bespoke acoustic enclosures with:

• Noise Reduction: 20 dBA reduction, meeting environmental noise restrictions.
• Ventilation: Optimal airflow providing cooling for drive motors, incorporating noise attenuation.
• Maintenance: Hinged access panels for inspection and routine maintenance.
• Modular Design: allowing dismantling for motor removal, minimizing downtime.
• Durable Finish: ISO12944 C5 paint finish

SUPPLY SCOPE:

A full acoustic enclosure was supplied for a decanter separator for a UK-based savoury snack manufacturer. The machine was to be housed within a production space, and as such, noise mitigation measures were required to be implemented.

The enclosure measured approx. 4m long x 1.7m wide x 2.1m high, and was supplied as a 1-piece drop-over unit, complete with certified lifting lugs.

For general maintenance access, the enclosure was supplied with a pair of sliding acoustic doors to one end, along with hinged access panels to the side walls. Ventilation was provided via a plate-mounted axial fan and acoustically lined cowl on the side wall of the unit.

Acoustic panelling installation at a leading UK power station.

APPLICATION DETAILS:

Environmental noise issues from a transformer enclosure.

SUPPLY SCOPE:

Design, supply and installation of a replacement acoustic wall to the front elevation of a transformer enclosures on-site. The new high-specification acoustic panelling provided the ideal replacement for the decaying front wall of the concrete enclosure in place.

Application Details:

Combined Heat and Power unit with drop over acoustic canopies.

SUPPLY SCOPE:

Standard packaged acoustic enclosures complete with a series of hinged access doors and attenuated ventilation apertures for a co-generation plant. The enclosures are provided with a high quality textured powder coat finish.

The design incorporates removable intermediate mullions for major maintenance activities.

Application Details:

Noise attenuation package for industrial blower units.

Flue Gas Desulphurisation Plant, Saudi Arabia.

SUPPLY SCOPE:

Noise reduction measures were supplied for a total of 7 no. blower items associated with an FGD plant. Each package consisted of an acoustic enclosure, inlet filter silencer, discharge pipe silencer and blow-off silencer.

The items were manufactured to API specifications, with discharge silencers being certified ASME VIII pressure vessels as per the project requirements.

The enclosures were supplied with fully framed side walls and roof in flat pack form for assembly on site.

Discharge and Blow-off silencers were treated with high-temperature paint finish to suit the typical operating temperatures of approx. 150oC

PROJECT:

Roll Wrap Line Machine Enclosure

Application Details:

Food and drink facility

SUPPLY SCOPE:

Food Safe dual skin stainless steel 304 construction encapsulating acoustic media between two solid panels complete with two single acoustic doors and a hinged Perspex windows either side for access.

Apertures and cut outs were allowed to enable pipe and conveyor system entry to the enclosure.