Fan Noise Control Using Microperforated Splitter Silencers

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Date

2014

Journal Title

Journal ISSN

Volume Title

Type

Article

Publisher

ASME, TWO PARK AVE

Series Info

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME;Volume: 136 Issue: 3

Abstract

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.

Description

Accession Number: WOS:000338204900017

Keywords

University for SOUND-ATTENUATION, POROUS MATERIAL, DUCTS, FLOW

Citation

Cited References in Web of Science Core Collection: 12