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

In this study, I used wood pellets as an eco-friendly sound-absorbing material. The aim of the research was to analyze effect filling height on sound absorption. This done using two types different lengths (A group: 1.5–3 cm, B less than 1.5 cm). With increasing pellets, optimum absorption shifted towards a lower frequency. group had better capacity A ones. coefficient filled 7 cm 0.722 at 864 Hz. On other hand, that 0.764 862 Hz, 5.82% higher A. While are fuel, results study suggest possibility