Active silencer improves British Gas operations

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · Pipe Line Ind.; (United States)

OSTI ID:5666767

British Gas Corp.'s Cambridge, UK, compressor station sometimes emits a residual noise or rumble at low frequencies even though the gas turbine is housed in a sound-deadening enclosure. To combat this problem, the UK's National Research Development Corp. is testing a large-scale active-silencing device that cancels out the unwanted sound by producing an exact but inverted replica of it. Four microphones pick up the noise, an electronic and computing apparatus processes the signal, and an audiopower equipment package (12 amplifiers and 72 loudspeakers) emits the opposite sound in three dimensions.

• OSTI ID: 5666767
• Journal Information: Pipe Line Ind.; (United States), Journal Name: Pipe Line Ind.; (United States) Vol. 54; ISSN PLINA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030800 -- Natural Gas-- Environmental Aspects
032000* -- Natural Gas-- Transport
Handling
& Storage
COMPRESSORS
CONTROL
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS COMPRESSORS
GAS FUELS
GASES
NATURAL GAS
NOISE POLLUTION CONTROL
OPERATION
PIPELINES
POLLUTION CONTROL
TRANSPORT