Acoustic wave propagation through panels that are made of used tea bags

Conference paper

Mundula, S. and Aygun, H. (2023). Acoustic wave propagation through panels that are made of used tea bags. Inter-Noise 2022. Glasgow 21 - 24 Aug 2022 Institute of Noise Control Engineering (INCE). https://doi.org/10.3397/in_2022_0203
AuthorsMundula, S. and Aygun, H.
TypeConference paper
AbstractThese days more than ever, society habits raise the necessity to consider the future of the environment. This presentation will tackle the aspect of more eco-friendly acoustic materials, more specifically analysing the properties of consumed tea bags, starting from the collection up to the application and measurement of the final product. Many good options are often avoided, or not implemented for the lack of reliable properties analysis, encouraging existing materials to be chosen instead, the more information could be found about new materials, the more these could have a chance to be used, compared, or eventually improved. Sound absorbing panels that are made of tea bags were designed and developed to investigate acoustic sound transmission through tea-bag panels. Measurements were carried out on tea-bag panels in an impedance tube using a transfer function method to determine their sound absorption and transmission loss. Furthermore, the impedance gun system was used to determine acoustical properties of larger panels. Results show that 70 mm thick panels give an absorption coefficient higher than 0.8 between 500 Hz and 1600 Hz while 17 mm thick panels give an absorption coefficient that is mostly effective at higher frequencies. Up to 9 dB sound transmission loss is obtained at some frequencies.
Keywordsacoustics, teabags, panels, sound absorption
Year2023
JournalINTER-NOISE and NOISE-CON Congress and Conference Proceedings
PublisherInstitute of Noise Control Engineering (INCE)
Journal citation265 (6), pp. 1459-1466
ISSN0736-2935
Digital Object Identifier (DOI)https://doi.org/10.3397/in_2022_0203
Web address (URL)https://internoise2022.org/
Accepted author manuscript
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Open
Publication dates
Online05 Oct 2022
Online01 Feb 2023
Publication process dates
Accepted21 Aug 2022
Deposited28 Nov 2022
Web address (URL) of conference proceedingshttps://internoise2022.org/programme/
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Acoustics wave propagation through teabag panels.pdf
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