Investigation of the Helmholtz Green Resonator Panel from Rice Husk Waste and Office Paper Reinforced with Coconut Coir Skin as a Noise Absorbing Panel
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International Journal of Recent Engineering Science (IJRES) |  |
| © 2019 by IJRES Journal | ||
| Volume-6 Issue-1 |
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| Year of Publication : 2019 | ||
| Authors : R. Hari Setyanto, Kuncoro Diharjo, Prabang Setyono, I Made Miasa |
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| DOI : 10.14445/23497157/IJRES-V6I1P101 |
Citation
MLA Style :R. Hari Setyanto, Kuncoro Diharjo, Prabang Setyono, I Made Miasa "Investigation of the Helmholtz Green Resonator Panel from Rice Husk Waste and Office Paper Reinforced with Coconut Coir Skin as a Noise Absorbing Panel" International Journal of Recent Engineering Science 6.1(2019):1-4.
APA Style :R. Hari Setyanto, Kuncoro Diharjo, Prabang Setyono, I Made Miasa, Investigation of the Helmholtz Green Resonator Panel from Rice Husk Waste and Office Paper Reinforced with Coconut Coir Skin as a Noise Absorbing Panel. International Journal of Recent Engineering Science, 6(1),1-4.
Abstract
This study was conducted to determine the potential of acoustic panels Helmholtz resonator made from office paper, waste rice husk, and polyvinyl acetate (PVA) with a thickness of 20 mm (the compaction is 4 MPa). Specimens made from office paper crushed then mixed with rice husks. The composition of office paper (O.P.): rice husk (R.H.) is an 80:20%, and coupled with the PVA binder 6 % of the total weight of the O.P. + R.H. In acoustic cells then perforated cavity resonator used with variations in the diameter of the holes 15, 20 and 25 mm holes spaced 40 mm and 20 mm cavity depth. Cavity cover is made from coconut fibre - polyester with a ratio of 35:65 %, vf, the hole in the cover (resonator neck) with variation in holes diameter 4, 6, and 8 mm, and the distance between holes is 40 mm neck resonator. This specimen tests based on the ASTM E1050 standard test using the two-microphone impedance tube. The optimal noise absorption coefficient (?) is 0.41 to 0.85 at an acoustic panel with a diameter of resonator cavity and neck, respectively 25 mm and 8 mm.
Reference
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Keywords
cavity depth, coconut choir, Helmholtz, PVA, rice husk.