The absorption and scattering characteristics of interior living walls
Akbarnejad, Mahsa (author) Connelly, Maureen (Maureen_Connelly) (thesis advisor) British Columbia Institute of Technology School of Construction and the Environment (Degree granting institution)
Dissertation/thesis
© Mahsa Akbarnejad, 2017. All rights reserved. No part of this work covered by the copyright heron may be reproduced or used in any form or by any means – graphics, electronic, or mechanical including photocopying, taping, or information storage and retrieval systems – without written permission of the author.http://creativecommons.org/licenses/by-nc-nd/2.5/ca/http://rightsstatements.org/vocab/InC/1.0/
British Columbia Institute of Technology
2017
136 pages
Installation of interior living walls is increasing rapidly due to their beauty, biophilic design and their potential contribution to indoor environmental quality. However, there is little understanding of the specific effect they have on the acoustics of a room. To advance the state of practice, this interdisciplinary study explores the acoustical characteristics of interior living walls to determine how they can be used to positively benefit room acoustic by reducing excess noise and reverberation. Specifically, the objective of the research is to measure the acoustical characteristics of the interior living wall in order to determine their absorption coefficient, scattering coefficient, and the parameters that most significantly impact these coefficients. First, a series of measurements are carried out in a reverberation chamber to examine random-incidence absorption by considering parameters such as carrier type, moisture content, vegetation type, and substrate. In addition, both absorption and scattering coefficients are examined by considering various vegetation types and coverage. The findings from empirical measurements facilitate a sensitivity analysis, with the use of the commercial software Odeon, of the absorption and scattering coefficients. Next, the empirical absorption and scattering coefficients are used on a model, developed in the commercial software Odeon, to see the effect of interior living walls on room acoustics. The aim of this study is to evaluate the application of interior living walls as a sustainable and acoustically beneficial material for buildings of any kind.
Acoustical characteristics of interior living walls Sound absorption coefficient Sound scattering coefficient Odeon software Room acoustics Living wall
Sound Interior walls
Eng
electronic
Master of Applied Science - MASc
Graduate
Building Engineering/Building Science
Master of Applied Science
