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Fan Noise Control Using Microperforated Splitter Silencers
Helwan University, Cairo, Egypt.
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
2014 (engelsk)Inngår i: Journal of Vibration and Acoustics-Transactions of the ASME, ISSN 1048-9002, E-ISSN 1528-8927, Vol. 136, nr 3, s. 031017-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Splitter or baffle silencers are commonly used, for example, in heating ventilation and air conditioning (HVAC) systems and as inlet/outlet silencers on gas turbines. Another application is to reduce noise from the cooling fan inlet for large IC-engines. A splitter silencer can be seen as a periodic arrangement of parallel rectangular absorbers, which can be placed in a rectangular duct. The noise reduction afforded by parallel splitters depends not only on the physical properties of the lining but also upon the angle of incidence of the impinging sound waves, and the splitter and duct dimensions. In this paper, the potential of using splitters made of microperforated plates (MPPs) is investigated, with a particular focus on cooling fan inlet/outlet applications.

sted, utgiver, år, opplag, sider
2014. Vol. 136, nr 3, s. 031017-
Emneord [en]
Sound-Attenuation, Porous Material, Ducts, Flow
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-148226DOI: 10.1115/1.4027245ISI: 000338204900017Scopus ID: 2-s2.0-84903783811OAI: oai:DiVA.org:kth-148226DiVA, id: diva2:736096
Forskningsfinansiär
EU, European Research Council, SCP8-GA-2009-233541-ECOQUEST
Merknad

QC 20140805

Tilgjengelig fra: 2014-08-05 Laget: 2014-08-04 Sist oppdatert: 2017-12-05bibliografisk kontrollert

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