| Low frequency noise reduction from building technical equipment: A case study. | |
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MedLine Citation:
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PMID: 18530295 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Mechanical equipment (fans, chillers, motors) produces airborne and structure-borne noise with a significant low frequency component. However, in many applications, mitigation of the low frequency noise requires implementation of significant mass barrier in combination with an air space. This work presents case studies on the use of a novel lightweight and thin acoustical material to mitigate low frequency noise from mechanical equipment. This advanced material, based on patented distributed absorber technology, was used to treat the metal housing of the mechanical equipment. The novel material effectively increased transmission loss of the metal housing below 300 Hz. The total noise reduction was 10-14 dB (A) with 5 dB improvement over typical flexible acoustical blankets below 300 Hz. |
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Authors:
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Kathleen Kondylas; Chris R Fuller; Joseph A King; Natalia Levit |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 123 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 May |
Date Detail:
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Created Date: 2008-06-05 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 3259 Citation Subset: IM |
Affiliation:
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NEVA Associates Noise Control, 15 Beck Street, Newburyport, MA 01950, USA, kondylas@earthlink.net. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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