Noise Control
Design
Sometimes Spectrum is asked to undertake detailed design of
noise control solutions. This might be for a number
of reasons including cost saving, the clients preference to closely
control the design, the need for local country manufacture or
the unavailability of standard noise control treatments in the
market place.
In these situations we work closely with the client and their
own designers and engineers to develop the right solution. For
particularly complicated projects we prefer to carry out evaluations
of noise control options and advise scheme feasibility before
embarking upon detailed design work.
Spectrum's knowledge of noise and how it is controlled
in practice has lead to detailed design and project supervision
work for 220MW gas turbine intake silencers at Keadby,
UK, a
range of noise control treatments, including a retrofit stack silencer
for a CCGT at Renca, Chile and a
number of turbine acoustic lagging projects including this one
at Alcan’s plant in Scotland.
Other projects include:
- Design and project management of noise
control for over 15 hydro stations in UK
- Noise reduction study for seat-belt tensioner
for Volvo cars
- Design of silencers for GE
gas turbines for various US and UK manufacturers
- Design of quiet
high pressure venting system in submarines, UK
- Design of noise control for Renca CCGT station, Chile, for AES Chile
 Engineering and Manufacturing Projects
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Aircraft
Research Association, Bedford, UK |
ARA's well known transonic wind
tunnel with its huge 28MW powered fan was built in 1954 and
is thought to have been used in aerodynamically testing over
50% of the western world's military aircraft. As part
of environmental improvements to the site, Spectrum was invited
to prepare design options for noise control of the facility.
ARA then asked Spectrum to detail design and supervise the
construction of a large high performance acoustic building
to completely enclose the wind tunnel, along with ancillary
noise control systems for compressors and cooling towers.
This is shown in the photograph as the main blue building.
Tests showed it effective in reducing noise at housing from
58 dB(A) to 38 dB(A)
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