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An application of a parametric transducer to measure acoustic absorption of a living green wall

An application of a parametric transducer to measure acoustic absorption of a living green wall

Romanova, Anna, Horoshenkov, Kirill and Hurrell, Alistair (2018) An application of a parametric transducer to measure acoustic absorption of a living green wall. Applied Acoustics, 145. pp. 89-97. ISSN 0003-682X (doi:https://doi.org/10.1016/j.apacoust.2018.09.020)

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Abstract

This work reports on a new method to measure the absorption coefficient of a Living Green Wall (LGW) in-situ. A highly directional parametric transducer and acoustic intensity probe are used to make this method robust against background noise and unwanted reflections. This method is tested under controlled laboratory conditions and in-situ on a real green wall. The methods is compared favourably against impedance tube data obtained for porous media which properties are relatively easy to measure using a standard laboratory setup. The new method is an alternative to the ISO354-2003 and CEN/TS 1793-5:2016 standard methods to measure acoustic absorption of materials.

Item Type: Article
Uncontrolled Keywords: Urban noise, Living Green Wall (LGW), Living plants, Green wall, Acoustic absorption, Acoustic measurement, Parametric sound
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Designing for Sustainability Research Theme
Faculty of Engineering & Science > School of Engineering (ENN)
Last Modified: 18 Sep 2020 23:35
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: REF 1
URI: http://gala.gre.ac.uk/id/eprint/21904

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