International journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN:2313-626X

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 Volume 5, Issue 6 (June 2018), Pages: 88-92

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 Original Research Paper

 Title: Acoustic properties of natural fiber of oil palm trunk

 Author(s): R. Kalaivani 1, *, L. S. Ewe 1, O. S. Zaroog 1, H. S. Woon 1, Zawawi Ibrahim 2

 Affiliation(s):

 1Mechanical Engineering Department, College of Engineering, Universiti Tenaga Nasional (UNITEN), Kajang, Malaysia
 2Engineering and Processing Division, Malaysian Palm Oil Board (MPOB), Kajang, Malaysia

 https://doi.org/10.21833/ijaas.2018.06.013

 Full Text - PDF          XML

 Abstract:

Natural fibers are being used as substitutes of synthetic material for sound absorbing material as it is more environmentally friendly and renewable. This paper presents the investigation of Sound Absorption Coefficient (α) of Oil Palm Trunk (OPT) natural fiber as an acoustic material. The experiment was carried out using Impedance Tube Method (ITM) where all samples of OPT are tested for Sound Absorption Coefficient. The natural fiber of OPT was fabricated to form panel in three different thickness of 8 mm, 12 mm and 16 mm with an average density of  100 kg/m3. From the result, it is found that OPT has a very good acoustic performance where all samples almost reached unity (α ≈ 0.9) at a high frequency above 3000 Hz. The result also shows that at low frequency, below 500 Hz, the Sound Absorption Coefficient ranges from 0.5 to 0.85. The natural fiber panel with a thickness of 12 mm is found to have the highest sound absorption coefficient, α » 0.99 at frequencies of 3000 Hz, 6000 Hz, and 6400 Hz, hence Oil Palm Trunk is a very promising natural fiber to be used as a sound absorbing material. 

 © 2018 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Natural fiber, Oil palm trunk, Sound absorption coefficient, Thickness

 Article History: Received 28 February 2017, Received in revised form 14 April 2018, Accepted 14 April 2018

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2018.06.013

 Citation:

 Kalaivani R, Ewe LS, Zaroog OS, Woon HS, and Ibrahim Z (2018). Acoustic properties of natural fiber of oil palm trunk. International Journal of Advanced and Applied Sciences, 5(6): 88-92

 Permanent Link:

 http://www.science-gate.com/IJAAS/2018/V5I6/Kalaivani.html

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