Effect of Density on the Sound Absorption of Date Palm Fibers

Abstract:

An experimental study on the effect of panel density on the sound absorption properties of a date palm fiber panel has been presented in this paper. The experiments were carried out by using impedance tube at the Acoustic Lab, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia. The date palm fiber was tested for densities of 77 kg/m³, 100 kg/m³ and 125 kg/m³.The results show that the values of absorption coefficient improve when increasing the density of the panel. Noise reduction coefficient (NRC) was computed to compare the performance of the palm date fiber samples for the different densities. The NRC increases by increasing the density.

• Periodical: Applied Mechanics and Materials (Volume 663)
• Pages: 437-441
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.663.437
• Online since: October 2014
• Authors: Elwaleed Awad Khidir*, Nik Abdullah Nik Mohamed, Mohd Jailani Mohd Nor, Mohd Faizal Mat Tahir, Rozli Zulkifli, Mohd Zaki Nuawi
• Keywords: Date Palm Fiber, Density, Sound Absorption

References

[1] K. Murali, K. Mohana Rao, Extraction and tensile properties of natural fibers: Vakka, date and bamboo, Composite Structures. 77 (2007) 288-295.

DOI: 10.1016/j.compstruct.2005.07.023

[2] P. Khristova, O. Kordsachia, T. Khider, Alkaline pulping with additives of date palm rachis and leaves from Sudan, Bioresource Technology. 96 (2005) 79-85.

DOI: 10.1016/j.biortech.2003.05.005

[3] A. Kriker, G. Debicki, A. Bali, M.M. Khenfer, M. Chabannet, Mechanical properties of date palm fibres and concrete reinforced with date palm fibres in hot-dry climate, Cement & Concrete Composites. 27 (2005) 554-564.

DOI: 10.1016/j.cemconcomp.2004.09.015

[4] K. Riahi, Abdallah Ben Mammoub, Béchir Ben Thayer, Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment, Journal of Hazardous Materials. 161 (2009) 608-613.

DOI: 10.1016/j.jhazmat.2008.04.013

[5] F. Al-Sulaiman, Evaluation of the performance of local fibers in evaporative cooling, Energy Conversion and Management. 43 (2002) 2267-2273.

DOI: 10.1016/s0196-8904(01)00121-2

[6] Han-Seung Yang, Dae-Jun Kim, Hyun-Joong Kim, Rice straw-wood particle composite for sound absorbing wooden construction materials, Bioresource Technology. 86 (2003) 117-121.

DOI: 10.1016/s0960-8524(02)00163-3

[7] Joseph Khedari, Noppanun Nankongnab, Jongjit Hirunlabh, Sombat Teekasap, New lowcost insulation particleboards from mixture of durian peel and coconut coir, Building and Environment. 39 (2004) 59-65.

DOI: 10.1016/j.buildenv.2003.08.001

[8] T. Koizumi, N. Tsujiuchi, A. Adachi, The development of sound absorbing materials using natural bamboo fibres, In: Brebbia CA, De Wilde WP, editors. High performance structures and composites 4. High performance structures and materials, Witpress, 2002, 157-66.

[9] S. Ersoy, H. Kucuk, Investigation of industrial tea-leaf-fibre waste material for its sound absorption properties, Appl. Acoust. 70 (2009) 215-20.

DOI: 10.1016/j.apacoust.2007.12.005

[10] R. Zulkifli, M.J.M. Nor, M.F.M. Tahir, A.R. Ismail, M.Z. Nuawi, Acoustic properties of multilayer coir fibres sound absorption panel, J. Appl. Sci. 8 (2008) 3709-14.

DOI: 10.3923/jas.2008.3709.3714

[11] Mohammad Hosseini Fouladi, Md. Ayub, Mohd Jailani Mohd Nor, Analysis of coir fiber acoustical characteristics, Appl. Acoust. 72 (2011) 35-42.

DOI: 10.1016/j.apacoust.2010.09.007

[12] M.M. Ali, M.O. Mohammed, Palm Date Fibres as Sound Absorber, Bachelor Thesis, Department of Mechanical Engineering, University of Khartoum, Sudan, (2010).