Development of green noise barrier using coconut fiber

Norshadatul Akmar , Mat Shadid (2015) Development of green noise barrier using coconut fiber. Project Report. UTeM. (Submitted)

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Abstract

The use of synthetic materials as acoustic absorbers is still applied in industry. These non-biodegradable materials do not only cause pollution to the environment, but also contribute significantly in increasing the carbon dioxide causing the effect of global warming. This project presents a way to find sustainable and eco-friendly materials to be an alternative sound absorber by using coconut fiber as a fibrous acoustic material. A green noise barrier from coconut fiber and sponge is fabricated and its effectiveness is determined through experiment and noise reduction index. Data collected is analyzed using Smart Office Analyzer Software to achieve the objectives on comparing its effectiveness in absorbing sound energy. Coconut fiber and sponge with different composition of material give different performance in reducing machinery noise. These fibers showed good performance as sound absorber at low and medium frequency region. Coconut fibers able to reduce sound pressure level of noise produced by compressor even at lower percentage composition.

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