Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin
This paper presents the sound absorption performance of natural fiber composites developed from chrome shave (CS) and coffee silver skin (CSS). Twelve test samples of thickness 30 mm and 50 mm were fabricated with different fiber sizes and fiber ratios and by maintaining the density of the samples b...
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Elsevier Ltd.
2021
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Online Access: | http://eprints.utem.edu.my/id/eprint/25371/2/CHROME_SHAVE_APAC2021.PDF http://eprints.utem.edu.my/id/eprint/25371/ https://www.sciencedirect.com/science/article/pii/S0003682X21003583 |
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my.utem.eprints.253712021-12-20T15:11:19Z http://eprints.utem.edu.my/id/eprint/25371/ Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin Monazzam, Mohammadreza Putra, Azma Abdi, Debelo Dugasa Taban, Ebrahim Golbabaei, Farideh Khadem, Monireh This paper presents the sound absorption performance of natural fiber composites developed from chrome shave (CS) and coffee silver skin (CSS). Twelve test samples of thickness 30 mm and 50 mm were fabricated with different fiber sizes and fiber ratios and by maintaining the density of the samples by 150 kg/m3. Normal incidence sound absorption coefficient spectra were measured in an impedance tube. Absorption coefficient spectra were predicted using the Johnson-Allard-Champoux (JCA) model using best fit values of tortuosity and the two characteristic lengths together with measured values of porosity and flow resistivity. The results revealed that the CS-CSS composite had average absorption coefficient of 0.95 above 1 kHz for a thickness of 30 mm and 50 mm. 'The predictions and data are in good agreement up to 6 kHz. Elsevier Ltd. 2021-11 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/25371/2/CHROME_SHAVE_APAC2021.PDF Monazzam, Mohammadreza and Putra, Azma and Abdi, Debelo Dugasa and Taban, Ebrahim and Golbabaei, Farideh and Khadem, Monireh (2021) Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin. Applied Acoustics, 182. pp. 1-10. ISSN 0003-682X https://www.sciencedirect.com/science/article/pii/S0003682X21003583 10.1016/j.apacoust.2021.108264 |
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This paper presents the sound absorption performance of natural fiber composites developed from chrome shave (CS) and coffee silver skin (CSS). Twelve test samples of thickness 30 mm and 50 mm were fabricated with different fiber sizes and fiber ratios and by maintaining the density of the samples by 150 kg/m3. Normal incidence sound absorption coefficient spectra were measured in an impedance tube. Absorption coefficient spectra were predicted using the Johnson-Allard-Champoux (JCA) model using best fit values of tortuosity and the two characteristic lengths together with measured values of porosity and flow resistivity. The results revealed that the CS-CSS composite had average absorption coefficient of 0.95 above 1 kHz for a thickness of 30 mm and 50 mm. 'The predictions and data are in good agreement up to 6 kHz. |
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Article |
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Monazzam, Mohammadreza Putra, Azma Abdi, Debelo Dugasa Taban, Ebrahim Golbabaei, Farideh Khadem, Monireh |
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Monazzam, Mohammadreza Putra, Azma Abdi, Debelo Dugasa Taban, Ebrahim Golbabaei, Farideh Khadem, Monireh Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
author_facet |
Monazzam, Mohammadreza Putra, Azma Abdi, Debelo Dugasa Taban, Ebrahim Golbabaei, Farideh Khadem, Monireh |
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Monazzam, Mohammadreza |
title |
Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
title_short |
Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
title_full |
Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
title_fullStr |
Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
title_full_unstemmed |
Sound Absorption Performance Of Natural Fiber Composite From Chrome Shave And Coffee Silver Skin |
title_sort |
sound absorption performance of natural fiber composite from chrome shave and coffee silver skin |
publisher |
Elsevier Ltd. |
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2021 |
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http://eprints.utem.edu.my/id/eprint/25371/2/CHROME_SHAVE_APAC2021.PDF http://eprints.utem.edu.my/id/eprint/25371/ https://www.sciencedirect.com/science/article/pii/S0003682X21003583 |
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