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Noise control for cooling fans on heavy vehicles
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet. KTH, Skolan för industriell teknik och management (ITM), Centra, Competence Center for Gas Exchange (CCGEx).
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet. KTH, Skolan för industriell teknik och management (ITM), Centra, Competence Center for Gas Exchange (CCGEx).ORCID-id: 0000-0001-7898-8643
2012 (engelsk)Inngår i: Noise Control Engineering Journal, ISSN 0736-2501, E-ISSN 2168-8710, Vol. 60, nr 6, s. 707-715Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2012. Vol. 60, nr 6, s. 707-715
Emneord [en]
Splitter Silencers, Sound-Attenuation, Porous Material, Ducts, Flow, Transmission
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-119980DOI: 10.3397/1.3701042ISI: 000316047400006Scopus ID: 2-s2.0-84874618462OAI: oai:DiVA.org:kth-119980DiVA, id: diva2:613003
Merknad

QC 20130326

Tilgjengelig fra: 2013-03-26 Laget: 2013-03-26 Sist oppdatert: 2017-12-06bibliografisk kontrollert

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