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      Application of transparent microperforated panels to acrylic partitions for desktop use: A case study by prototyping

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          Abstract

          There are various measures currently in place to prevent the spread of coronavirus (COVID-19); however, in some cases, these can have an adverse effect on the acoustic environment in buildings. For example, transparent acrylic partitions are often used in eating establishments, meeting rooms, offices, etc., to prevent droplet infection. However, acrylic partitions are acoustically reflective; therefore, reflected sounds may cause acoustic problems such as difficulties in conversation or the leakage of conversation. In this study, we performed a prototyping of transparent acrylic partitions to which a microperforated panel (MPP) was applied for sound absorption while maintaining transparency. The proposed partition is a triple-leaf acrylic partition with a single acrylic sheet without holes between two MPP sheets, as including a hole-free panel is important to prevent possible droplet penetration. The sound absorption characteristics were investigated by measuring the sound absorption in a reverberation room. As the original prototype showed sound absorption characteristics with a gentle peak and low values due to the openings on the periphery, it was modified by closing the openings on the top and sides. The sound absorption performance was improved to some extent when the top and sides were closed, although there remains the possibility of further improvement. For this study, only the sound absorption characteristics were examined in the prototype experiments. The effects during actual use will be the subject of future study.

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          Most cited references 16

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          Potential of microperforated panel absorber

           Dah-You Maa (1998)
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            Microperforated-Panel Wideband Absorbers

             Dah-You Maa (1987)
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              Theory and design on microperforated panel sound-absorbing constructions

               Maa,  D-Y Maa,  D.-Y. Maa (1975)
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                Author and article information

                Journal
                UCL Open Environ
                UCLOE
                UCL Open Environment
                UCL Open Environ
                UCL Press (UK )
                2632-0886
                10 July 2021
                2021
                : 2
                Affiliations
                [1 ]Environmental Acoustics Laboratory, Department of Architecture, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
                [2 ]NC Industry Co. Ltd., 170-1 Shintamaki, Ichida, Kumiyama-cho, Kuze-gun, Kyoto, 613-0022, Japan
                Author notes
                *Corresponding author: E-mail: saka@ 123456kobe-u.ac.jp
                Article
                10.14324/111.444/ucloe.000021
                © 2021 The Authors.

                This is an open access article distributed under the terms of the Creative Commons Attribution Licence (CC BY) 4.0, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

                Page count
                Figures: 7, Tables: 2, References: 17, Pages: 10
                Funding
                This research did not receive external funding.
                Categories
                Open Commentary

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