Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber
Wood charcoal is a sustainable, renewable, and environmentally friendly material with the use that the acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality. Therefore, this objective of the article is to investigate the sound scattering co...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2023-01-01
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| Series: | Environmental and Climate Technologies |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/rtuect-2023-0034 |
| _version_ | 1797368827695071232 |
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| author | Khrystoslavenko Olga Grubliauskas Raimondas |
| author_facet | Khrystoslavenko Olga Grubliauskas Raimondas |
| author_sort | Khrystoslavenko Olga |
| collection | DOAJ |
| description | Wood charcoal is a sustainable, renewable, and environmentally friendly material with the use that the acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality. Therefore, this objective of the article is to investigate the sound scattering coefficients of QRD with the perforation ratio of oak wood charcoal elements. Sound scattering coefficient calculated with the measurement of the reverberation time in the reverberation chamber. The calculation results of the scattering coefficient show the growth of scattering in the frequencies - the highest value reached 0.88 (diffuser N7 with charcoal). The effectiveness of diffusers to diffuse sound waves increases as the number of wells grows. The diffuser with 80 % charcoal elements showed a higher scattering coefficient compared to the diffuser without charcoal elements. |
| first_indexed | 2024-03-08T17:38:21Z |
| format | Article |
| id | doaj.art-d2f65dbcafa1436786e2b902d292540c |
| institution | Directory Open Access Journal |
| issn | 2255-8837 |
| language | English |
| last_indexed | 2024-03-08T17:38:21Z |
| publishDate | 2023-01-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Environmental and Climate Technologies |
| spelling | doaj.art-d2f65dbcafa1436786e2b902d292540c2024-01-02T11:36:05ZengSciendoEnvironmental and Climate Technologies2255-88372023-01-0127146447510.2478/rtuect-2023-0034Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation ChamberKhrystoslavenko Olga0Grubliauskas Raimondas1Vilnius Gedeminas Technical University, Department of Environmental Protection and Water Engineering, Saulėtekio al. 11, LT-10223, Vilnius, LithuaniaVilnius Gedeminas Technical University, Department of Environmental Protection and Water Engineering, Saulėtekio al. 11, LT-10223, Vilnius, LithuaniaWood charcoal is a sustainable, renewable, and environmentally friendly material with the use that the acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality. Therefore, this objective of the article is to investigate the sound scattering coefficients of QRD with the perforation ratio of oak wood charcoal elements. Sound scattering coefficient calculated with the measurement of the reverberation time in the reverberation chamber. The calculation results of the scattering coefficient show the growth of scattering in the frequencies - the highest value reached 0.88 (diffuser N7 with charcoal). The effectiveness of diffusers to diffuse sound waves increases as the number of wells grows. The diffuser with 80 % charcoal elements showed a higher scattering coefficient compared to the diffuser without charcoal elements.https://doi.org/10.2478/rtuect-2023-0034diffusersound scattering coefficientrenewable materialswood wastewood charcoal |
| spellingShingle | Khrystoslavenko Olga Grubliauskas Raimondas Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber Environmental and Climate Technologies diffuser sound scattering coefficient renewable materials wood waste wood charcoal |
| title | Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber |
| title_full | Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber |
| title_fullStr | Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber |
| title_full_unstemmed | Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber |
| title_short | Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber |
| title_sort | experimental studies of the sound scattering coefficient of the diffuser in the reverberation chamber |
| topic | diffuser sound scattering coefficient renewable materials wood waste wood charcoal |
| url | https://doi.org/10.2478/rtuect-2023-0034 |
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