A natural ventilation window for transformer noise control based on coiled-up silencers consisting of coupled tubes

Wang, S; Tao, J; Qiu, X; Burnett, IS

A natural ventilation window for transformer noise control based on coiled-up silencers consisting of coupled tubes

Wang, S Tao, J Qiu, X

Burnett, IS

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Applied Acoustics, 2022, 192
Issue Date:: 2022-04-01

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Field	Value	Language
dc.contributor.author	Wang, S
dc.contributor.author	Tao, J
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220
dc.contributor.author	Burnett, IS
dc.date.accessioned	2023-03-09T22:17:19Z
dc.date.available	2023-03-09T22:17:19Z
dc.date.issued	2022-04-01
dc.identifier.citation	Applied Acoustics, 2022, 192
dc.identifier.issn	0003-682X
dc.identifier.issn	1872-910X
dc.identifier.uri	http://hdl.handle.net/10453/166896
dc.description.abstract	For transformers located inside rooms, openings in the walls are often required for ventilation and heat dissipation with the result that transformer noise radiates to the outside. A soundproof window for indoor transformers is proposed in this paper, which provides both air circulation and noise reduction simultaneously. A silencer consisting of two coupled tubes with different cross sections is designed and coiled up in space to minimize the thickness of the structure. With carefully chosen parameters, just one such silencer can achieve sound attenuation at up to 4 frequencies. With a combination of a staggered window and specially designed silencers, effective noise reduction is obtained at 100 Hz, 200 Hz, 300 Hz, 400 Hz and 500 Hz, where harmonic components contribute the most to the transformer noise. The experimental results with a 1:4 scale down model show the feasibility of the proposed design.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/LP160100616
dc.relation.ispartof	Applied Acoustics
dc.relation.isbasedon	10.1016/j.apacoust.2022.108744
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0203 Classical Physics, 0913 Mechanical Engineering, 1201 Architecture
dc.subject.classification	Acoustics
dc.title	A natural ventilation window for transformer noise control based on coiled-up silencers consisting of coupled tubes
dc.type	Journal Article
utslib.citation.volume	192
utslib.for	0203 Classical Physics
utslib.for	0913 Mechanical Engineering
utslib.for	1201 Architecture
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-09T22:17:18Z
pubs.publication-status	Published
pubs.volume	192

Abstract:

For transformers located inside rooms, openings in the walls are often required for ventilation and heat dissipation with the result that transformer noise radiates to the outside. A soundproof window for indoor transformers is proposed in this paper, which provides both air circulation and noise reduction simultaneously. A silencer consisting of two coupled tubes with different cross sections is designed and coiled up in space to minimize the thickness of the structure. With carefully chosen parameters, just one such silencer can achieve sound attenuation at up to 4 frequencies. With a combination of a staggered window and specially designed silencers, effective noise reduction is obtained at 100 Hz, 200 Hz, 300 Hz, 400 Hz and 500 Hz, where harmonic components contribute the most to the transformer noise. The experimental results with a 1:4 scale down model show the feasibility of the proposed design.

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http://hdl.handle.net/10453/166896