<div class="csl-bib-body">
<div class="csl-entry">Bajraktari, E., & Mahdavi, A. (2015). Estimating the sound insulation of double facades with openings for natural ventilation. In M. Perino & V. Corrado (Eds.), <i>Proceedings of the 6th International Building Physics Conference, IBPC 2015</i> (pp. 140–145). Elsevier. https://doi.org/10.1016/j.egypro.2015.11.129</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/64380
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dc.description.abstract
none - see english version
de
dc.description.abstract
Natural ventilation represents a potentially sustainable scheme for the provision of good indoor air quality and free cooling in
buildings. However, its application is frequently hindered due to outdoor climatic conditions, air pollution, or noise pollution.
The later impediment represents one of the main motivations behind the research presented in this paper, as buildings under noise
exposure cannot effectively deploy the natural (window) ventilation option. To address this problem, the potential of building
envelope solutions that could offer sufficient sound insulation while facilitating natural ventilation is of critical importance.
Specifically, the present contribution focuses on the sound insulation properties of double facades with openings for natural
ventilation. Thereby, a generic double-leaf façade was conceived and installed between two adjacent reverberant chambers in the
acoustic laboratory of the Department of Building Physics and Building Ecology at the Vienna University of Technology. This
experimental modular double-leaf wall allows for various configurations of open elements. Multiple opening combinations were
studied, such that the impact of various system parameters (e.g., the size of the opening, location of the openings, the relative
displacement of the openings in the two layers) could be assessed both empirically and computationally. Furthermore, various
levels of sound absorption in the double wall cavity (realized with absorber panels) were considered and tested. The resulting
comprehensive set of parametric configurations was subject of systematic sound transmission measurements. Using the results of
the measurements, multivariable analysis and curve-fitting techniques were deployed toward developing empirically-based
equations for the prediction of the sound insulation of double-leaf facades with openings for natural ventilation. Furthermore, a
simple analytical model was proposed that could be also applied toward predicting the sound transmission of such constructions.
The results of empirically-based and analytical models are compared with the measurements results to discuss the potential and
limitations of their predictive performance.
en
dc.language.iso
en
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dc.relation.ispartofseries
Energy Procedia
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dc.subject
acoustics
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dc.subject
natural ventilation
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dc.subject
building envelope
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dc.subject
noise control
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dc.subject
sound insulation.
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dc.title
Estimating the sound insulation of double facades with openings for natural ventilation
en
dc.type
Konferenzbeitrag
de
dc.type
Inproceedings
en
dc.relation.publication
Proceedings of the 6th International Building Physics Conference, IBPC 2015
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dc.relation.issn
1876-6102
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dc.description.startpage
140
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dc.description.endpage
145
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dc.type.category
Full-Paper Contribution
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tuw.booktitle
Proceedings of the 6th International Building Physics Conference, IBPC 2015
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tuw.container.volume
78
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tuw.peerreviewed
true
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tuw.book.ispartofseries
Energy Procedia
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tuw.relation.publisher
Elsevier
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tuw.relation.publisherplace
Amsterdam, NL
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tuw.researchTopic.id
E6
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tuw.researchTopic.name
Sustainable Production and Technologies
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E259-03 - Forschungsbereich Bauphysik und Bauökologie
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tuw.publisher.doi
10.1016/j.egypro.2015.11.129
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dc.description.numberOfPages
6
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tuw.event.name
6th International Building Physics Conference 2015
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tuw.event.startdate
14-07-2015
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tuw.event.enddate
17-07-2015
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Torino
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tuw.event.country
IT
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tuw.event.presenter
Bajraktari, Egzon
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wb.sciencebranch
Architektur
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wb.sciencebranch
Bauingenieurwesen
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wb.sciencebranch.oefos
2012
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wb.sciencebranch.oefos
2011
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wb.facultyfocus
Öko-effiziente Entwicklung und Gestaltung der gebauten Umwelt und der räumlichen Ressourcen
de
wb.facultyfocus
Eco-efficient development and design of the built environment