Abstract:

In this paper, the authors discuss a case study involving the design of noise control treatments for a 210-MW cogeneration plant. Residential property was located to the north, south, and east of the plant, with industrial zoned property to the west. The local noise regulations limited the A-weighted sound level that could be produced by the plant under all normal operating conditions to 55 dB at residential property lines and 75 dB at the industrial property lines. The nearest residential boundary was about 100-m east of the turbine buildings. Cost-effective noise control treatments were developed during the design phase of the plant. These treatments included not only sound-level specifications for all major equipment items, special building wall and roof construction, transformer barriers, and silencers for ventilation systems and vents, but also many noisy equipment items were located on the west side of the plant. [See NOISE-CON Proceedings for full paper.]