Active exhaust silencers quiet diesel generator sets

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Power Engineering; (United States)

OSTI ID:6924890

Shipps, J C; Miller, S K; Shaver, J

This article describes newly developed active noise cancellation technology which silences engines without sacrificing efficiency and performance. The first real attempts at active noise cancellation occurred in the 1930s. Unfortunately, the success of these initial attempts was limited because, even with very simple applications, the rudimentary control systems available at the time were not up to the task. However, with the advent of digital signal processing technology and improved transducers, it is now possible to apply active noise cancellation technology commercially. Active silencers have been demonstrated successfully on automobiles, trucks, buses, compressors, very large natural gas engines and positive displacement blowers. Active silencers attenuate exhaust noise and can reduce exhaust backpressure.

• OSTI ID: 6924890
• Journal Information: Power Engineering; (United States), Journal Name: Power Engineering; (United States) Vol. 98:8; ISSN POENAI; ISSN 0032-5961
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ATTENUATION
DIESEL ENGINES
ENGINES
EXHAUST SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NOISE
POWER PLANTS