Dg Hafizah, Kassim (2012) Investigation On The Performance Of A Hybrid Microperforated Panel-Natural Waste Fibre As An Eco-Friendly Sound And Noise Barrier. Project Report. UTeM, Melaka, Malaysia. (Submitted)
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Abstract
Noise can cause disruption to one’s health when noise exposure levels are exceeding the certain limits. To reduce the sound and noise disturbance, new material has been developed as the potential sound absorption material. Conventional absorber is expensive and deteriorates through time. Recent development of natural fibre is increasing after their acoustic performances have been explored. Furthermore, the abundance source of fibre in Malaysia made fibre as the sustainable material for the sound absorption panels. In addition to the research, the researchers also find the employment of the microperforated panel (MPP) replacing the synthetic porous material. The objective of this project is to investigate the performance of a coupled absorber consisting of microperforated panel (MPP) and natural fibre. Coconut and sugarcane fibre are introduced in this study to be coupled with microperforated panel (MPP). The results obtained from the experimental tests by using impedance tube method show that both fibre has increase the transmission loss of the hybrid microperforated panel (MPP)-natural waste fibre at low frequency range but decrease at frequency more than 1000 Hz. Coir fibre enhance transmission loss (TL) performance at 300 Hz to 800 Hz while sugarcane fibre at 300 Hz to 600 Hz. Particularly, for noise source which is predominant at low frequencies below 1 kHz.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Acoustical engineering, Soundproofing. |
| Subjects: | T Technology > T Technology (General) T Technology > TH Building construction |
| Divisions: | Library > Final Year Project > FKM |
| Depositing User: | Ahmad Abu Bakar |
| Date Deposited: | 23 Jul 2013 07:23 |
| Last Modified: | 28 May 2015 03:52 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/7858 |
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