Predicted acoustical performance of multi-unit splitter silencers
Keywords:
acoustic noise, noise abatement, design curves, acoustical performance, multi-unit splitter silencers, fan noise, rectangular ducts, air-handling systems, silencer performance evaluation, rectangular silencers, silencer insertion lossAbstract
Passive silencers with acoustic fill are commonly used to reduce the fan noise in rectangular ducts of conventional air-handling systems. Design procedures for silencer performance evaluation of simple configurations have been available for some time. Design curves for a wide variety of rectangular silencers were made available recently. Many methods for predicting silencer insertion loss assume the silencers to be a single unit. In many air-handling systems however, the duct is divided into many small units by installing splitters in the duct. Predicted insertion loss results for multi-unit splitter silencers are presented in this paper. Multi-unit silencer performance is compared to that of a single unit within the full duct. The accuracy of using a single-unit model to represent the different types of conventional rectangular silencers is also presentedDownloads
Published
How to Cite
Issue
Section
License
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.