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Noise control for cooling fans on heavy vehicles
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0001-7898-8643
2012 (English)In: Noise Control Engineering Journal, ISSN 0736-2501, E-ISSN 2168-8710, Vol. 60, no 6, 707-715 p.Article in journal (Refereed) Published
Abstract [en]

In this paper two different objects for fan passive noise control have been examined: heat exchangers and inlet/outlet parallel splitter silencers based on micro-perforated panels. The first object is theoretically and experimentally examined while the second is only examined experimentally. Throughout this paper two measurement methods were used. The ISO 15186-1:2000 to test the acoustic transmission for a diffuse field and plane wave testing in a duct of a sample cut from each heat exchanger type. Based on an anisotropic equivalent fluid model a theoretical model for the heat exchanger acoustic transmission is presented. A new type of splitter silencers based on micro-perforated plates, which can add damping up 10-20 dB in the frequency range of interest (<5 kHz), are also presented.

Place, publisher, year, edition, pages
2012. Vol. 60, no 6, 707-715 p.
Keyword [en]
Splitter Silencers, Sound-Attenuation, Porous Material, Ducts, Flow, Transmission
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-119980DOI: 10.3397/1.3701042ISI: 000316047400006Scopus ID: 2-s2.0-84874618462OAI: oai:DiVA.org:kth-119980DiVA: diva2:613003
Note

QC 20130326

Available from: 2013-03-26 Created: 2013-03-26 Last updated: 2017-12-06Bibliographically approved

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Åbom, Mats

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