Application of Scirpus grossus fiber as a sound absorber.

Autor:	Suhaeri S; Postgraduate School of Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia.; Department of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia., Fulazzaky MA; School of Postgraduate Studies, Universitas Djuanda, Jalan Tol Ciawi No. 1, Ciawi, Bogor, 16720, Indonesia., Husaini H; Department of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia., Dirhamsyah M; Department of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia., Hasanuddin I; Department of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Mar 28; Vol. 10 (7), pp. e28961. Date of Electronic Publication: 2024 Mar 28 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e28961
Abstrakt:	The application of Scirpus grossus (SG) fiber as a sound absorber is important to reduce the level of noise affected the physical and mental wellbeing of people. The sound absorption coefficient (SAC) and noise reduction coefficient (NRC) of the SG specimen were evaluated based on a typical model-based design using the data analysis with MATLAB. The results showed that SG specimen with a thickness of 20 mm coated with the perforated aluminum sheet (PAS) compared to that without coating can improve the capability of sound absorption by 14% at the frequency of 4000 Hz. SG specimen coated with PAS that has a NRC value of 0.39 can absorb 39% of sound and thus reflects 61% of sound wave while SG specimen without coating that has a NRC value of 0.23 absorbs 23% of sound and can reflect 77% of sound wave. The sound absorption class of D for SG specimen coated with PAS should be better that of E for SG specimen without coating, which permits us to get better understanding on the applications of SG fiber as a sound adsorber in the future. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors.)
Databáze:	MEDLINE
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