The estimation of Helmholtz resonator and active noise control to predict noise reduction of fan in an air duct
Aims: The main goal of this paper was to evaluate the effectiveness of Helmholtz resonator in noise reduction of duct equipped with active noise control (ANC). Materials and Methods: Noise frequency band was produced by a propeller fan, which was spread into a plexiglas duct. The noise was formed b...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Wolters Kluwer Medknow Publications
2015-01-01
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Series: | International Journal of Environmental Health Engineering |
Subjects: | |
Online Access: | http://www.ijehe.org/article.asp?issn=2277-9183;year=2015;volume=4;issue=1;spage=6;epage=6;aulast=Forouharmajd |