Characterization of Sheep Wool as a Sustainable Material for Acoustic Applications
| Autor: | PILAR CANDELAS VALIENTE, ROMINA DEL REY, JESUS ALBA, Antonio Uris, CONSTANZA RUBIO MICHAVILA |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
natural material sound absorption flow resistance sheep wool delany-bazley model Mineral wool Airflow 0211 other engineering and technologies chemical and pharmacologic phenomena 02 engineering and technology Natural material 01 natural sciences lcsh:Technology Article 021105 building & construction 0103 physical sciences otorhinolaryngologic diseases General Materials Science Composite material lcsh:Microscopy 010301 acoustics Sheep wool lcsh:QC120-168.85 Flow resistance Natural materials lcsh:QH201-278.5 lcsh:T Acoustic absorption eye diseases Characterization (materials science) Delany-bazley model lcsh:TA1-2040 FISICA APLICADA lcsh:Descriptive and experimental mechanics Sound absorption lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 10, Iss 11, p 1277 (2017) Materials RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname Materials; Volume 10; Issue 11; Pages: 1277 |
| ISSN: | 1996-1944 |
| Popis: | [EN] In recent years, natural materials are becoming a valid alternative to traditional sound absorbers due to reduced production costs and environmental protection. This paper reports the acoustical characterization of sheep wool. Measurements on normal incidence and diffuse-incidence sound absorption coefficients of different samples are reported. The airflow resistance has also been measured. The results prove that sheep wool has a comparable sound absorption performance to that of mineral wool or recycled polyurethane foam. An empirical model is used to calculate the sound absorption of sheep wool samples. A reasonable agreement on the acoustic absorption of all sheep wool samples is obtained. This work was financially supported by the project BIA2013-41537-R (BIAEFIREMAT "Development of new eco-materials and sustainable constructive solutions based on the use of waste and renewable raw materials"), funded by the Ministry of Economy and Competitiveness of Spain and co-financed with ERDF funds, within the National RDI Programme focused on the Challenges of Society 2013 |
| Databáze: | OpenAIRE |
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