Date: Fri, 21 Nov 1997 00:56:16 GMT Server: WebSite/1.1h Accept-ranges: bytes Content-type: text/html Last-modified: Thu, 25 Sep 1997 03:46:32 GMT Content-length: 7897
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Complete IAC noise control systems including Power-Flow® Intake and Exhaust Silencers and Noishield Enclosures are available to reduce gas turbine noise. Power-Flow Silencers may include dissipative and/or reactive elements to provide the most cost-effective means of satisfying applicable noise criteria. IAC has designed and manufactured Power-Flow Silencers for most power generation gas turbines. Designs are available for many replacement silencers applications. IAC's proven expertise in the application of resonator technology will provide economical solutions to any special low-frequency noise problems. |
Steam turbine cladding is accomplished with Moduline® Noishield Component System designed to provide high Sound Transmission Loss (STC) and Sound Absorption (NRC) performance.The modular system is engineered for fast track installation by semi skilled personnel. IAC's cladding system can be designed to allow visual inspection and maintenance of equipment with minimal disruption of service for indoor and outdoor facilities. |
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Noishield enclosures, room offices and partitions can be designed to provide noise reduction performance in accordance with acoustical and space requirements. IAC designs acoustic structure in its Aero-Acoustic Laboratory to meet specific noise reduction, aerodynamic, thermodynamic, structural and mechanical requirements. If discrete low or high frequency peak noise sources are a factor, IAC can provide proven designs to attenuate them. |
IAC's Louvers provide effective weather barriers together with
noise control and low pressure drop for air intakes, supply systems, equipment
rooms, penthouses, noise barriers, cross talk silencers, cooling towers,
and others. Noishield Louvers offer decorative exteriors, color coordinated
finished and corners for architectural compatibility. Supplied in galvanized
steel or mill finish aluminum for field painting; options include stainless
steel and laminated finishes.
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ACFI Silencers are designed to attenuate blade pass and harmonic frequencies even after buildup of fly ash or other deposits. ACFI Silencers are engineered to provide broad band Dynamic Insertion Loss (DIL) and minimum pressure drop. Parallel air paths help minimize pressure drop and permit inspection and maintenance of sound absorbing cavities without splitter removal. |
Power Flow Silencers for forced draft and induced draft fans are
designed to economically satisfy a wide range of acoustical and aerodynamic
requirements: they are laboratory rated to assure specified results.
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Transformers are often one of the most difficult noise problems
to control. Due to the general predominance of transformer "hum"
and cooling fan noise at 100 or 120 Hz, transformers require noise barriers
highly rated for transmission loss and sound absorption at these frequencies.
Moduline Enclosures and Noishield Barriers are rated from STC 40 to STC
70 (special designs available) and at NRC 0.95 to absorb incident sound.
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