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http://dx.doi.org/10.5658/WOOD.2022.50.2.126

Experimental Investigation of the Sound Absorption Capability of Wood Pellets as an Eco-Friendly Material  

JANG, Eun-Suk (Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.50, no.2, 2022 , pp. 126-133 More about this Journal
Abstract
In this study, I used wood pellets as an eco-friendly sound-absorbing material. The aim of the research was to analyze the effect of the filling height of wood pellets on sound absorption. This was done using two types of wood pellets of different lengths (A group: 1.5-3 cm, B group: less than 1.5 cm). With increasing filling height of the wood pellets, the optimum sound absorption shifted towards a lower frequency. The group B wood pellets had better sound absorption capacity than the group A ones. The optimum sound absorption coefficient of group A filled to a height of 7 cm was 0.722 at 864 Hz. On the other hand, that of group B filled to a height of 7 cm was 0.764 at 862 Hz, 5.82% higher than that of group A. While wood pellets are used as an eco-friendly fuel, the results of this study suggest the possibility of using wood pellets as an eco-friendly sound-absorbing material.
Keywords
wood pellets; sound absorption coefficient; eco-friendly sound-absorbing material;
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Times Cited By KSCI : 18  (Citation Analysis)
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