Award Date

1-1-1990

Degree Type

Thesis

Degree Name

Master of Science (MS)

First Committee Member

Douglas Reynolds

Number of Pages

223

Abstract

Duct silencers must reduce sound levels enough to be noticed by the human ear. By placing the appropriate duct silencer in the air-conditioning duct system, sound levels in rooms where noise is a problem can be significantly reduced. Only through insertion loss measurements can the appropriate silencer be determined for the desired noise reduction; This thesis involves the modification and qualification of the reverberation chamber in the Multi-Function Lab at the University of Nevada, Las Vegas, for the purpose of creating a controlled sound testing environment. It also involves the design and construction of facilities for making insertion loss measurements. The thesis concludes with the testing and analysis of five duct silencers. (Abstract shortened with permission of author.).

Keywords

According; Astm; Development; Duct; E477; Facility Making; Measurements; Sound; Test

Controlled Subject

Mechanical engineering; Sound

File Format

pdf

File Size

4.70 MB

Degree Grantor

University of Nevada, Las Vegas

Language

English

Permissions

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