Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness
Fast growth of worldwide oil palm industry and nation�s economics have affected the environment for the mishandling of oil palm waste, which has endangered the flora and fauna that surrounds it. The wastes of oil palm can be turned into good source of material for sound absorption or other usages. F...
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2023
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my.uniten.dspace-264202023-05-29T17:10:18Z Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness Chandran M.R. Sheng E.L. Nasir M.N. Kean Y.W. Ibrahim Z. 57421971900 58032789200 57422859800 57422859900 57546469300 Fast growth of worldwide oil palm industry and nation�s economics have affected the environment for the mishandling of oil palm waste, which has endangered the flora and fauna that surrounds it. The wastes of oil palm can be turned into good source of material for sound absorption or other usages. Furthermore, the awareness about the harmful effects of fibreglass as sound absorbing material has certainly increased and the demand of replacing it with natural fibres are growing day by day. This research highlights the acoustic properties of mixing empty fruit bunch (EFB) and oil palm frond (OPF) at mixing ratios of 50% EFB-50% OPF, 40% EFB-60% OPF, 30% EFB-70% OPF and 20% EFB-80% OPF in thickness of 12, 14, 16 and 18�mm with density of 120�kg/m3. The sound absorption coefficient, SAC (?) test was conducted using the impedance tube method (ITM) and the morphology of the samples were examined using scanning electron microscope, SEM. The results showed no trend for the sac values with increasing of thickness and OPF contents. Nevertheless, it is noteworthy that the frequency range with 0.8 sac values and above are increased with thickness, it may be attributed to tortuosity effects. The morphology of EFB and OPF mixture may play a crucial role in determining the sound absorption. � 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. Final 2023-05-29T09:10:17Z 2023-05-29T09:10:17Z 2021 Conference Paper 10.1007/978-981-16-4513-6_1 2-s2.0-85123275470 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123275470&doi=10.1007%2f978-981-16-4513-6_1&partnerID=40&md5=f6f66c3d2e691c747a0404b2fa9b9fcd https://irepository.uniten.edu.my/handle/123456789/26420 3 13 Springer Science and Business Media B.V. Scopus |
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Fast growth of worldwide oil palm industry and nation�s economics have affected the environment for the mishandling of oil palm waste, which has endangered the flora and fauna that surrounds it. The wastes of oil palm can be turned into good source of material for sound absorption or other usages. Furthermore, the awareness about the harmful effects of fibreglass as sound absorbing material has certainly increased and the demand of replacing it with natural fibres are growing day by day. This research highlights the acoustic properties of mixing empty fruit bunch (EFB) and oil palm frond (OPF) at mixing ratios of 50% EFB-50% OPF, 40% EFB-60% OPF, 30% EFB-70% OPF and 20% EFB-80% OPF in thickness of 12, 14, 16 and 18�mm with density of 120�kg/m3. The sound absorption coefficient, SAC (?) test was conducted using the impedance tube method (ITM) and the morphology of the samples were examined using scanning electron microscope, SEM. The results showed no trend for the sac values with increasing of thickness and OPF contents. Nevertheless, it is noteworthy that the frequency range with 0.8 sac values and above are increased with thickness, it may be attributed to tortuosity effects. The morphology of EFB and OPF mixture may play a crucial role in determining the sound absorption. � 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. |
| author2 |
57421971900 |
| author_facet |
57421971900 Chandran M.R. Sheng E.L. Nasir M.N. Kean Y.W. Ibrahim Z. |
| format |
Conference Paper |
| author |
Chandran M.R. Sheng E.L. Nasir M.N. Kean Y.W. Ibrahim Z. |
| spellingShingle |
Chandran M.R. Sheng E.L. Nasir M.N. Kean Y.W. Ibrahim Z. Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| author_sort |
Chandran M.R. |
| title |
Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| title_short |
Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| title_full |
Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| title_fullStr |
Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| title_full_unstemmed |
Acoustic Performance of Mixing EFB and OPF Low-Density Fibreboards in Different Thickness |
| title_sort |
acoustic performance of mixing efb and opf low-density fibreboards in different thickness |
| publisher |
Springer Science and Business Media B.V. |
| publishDate |
2023 |
| _version_ |
1806426333512728576 |
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13.222552 |