Acoustic evaluation of Struto nonwovens and their relationship with thermal properties

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dc.contributor.authorYang Taocs
dc.contributor.authorXiong Xiaomancs
dc.contributor.authorMishra Rajeshcs
dc.contributor.authorMilitký Jiřícs
dc.contributor.authorNovák Jancs
dc.date.accessioned2018-09-25T11:50:55Z
dc.date.available2018-09-25T11:50:55Z
dc.date.issued2018cs
dc.description.abstractThis paper presents an experimental investigation on the sound absorption behavior and thermal properties of Strutononwovens by establishing relationship between these properties. Seven Struto nonwoven fabrics were selected toexamine the noise reduction coefficient (NRC) and average values of sound absorption coefficients as well as thermalproperties, including thermal conductivity and thermal resistance. The Bruel and Kjar impedance tube instrument andAlambeta were used for the evaluation of acoustic and thermal properties, respectively. The influence of structuralparameters on acoustic and thermal properties of Struto nonwovens were investigated and analyzed. The results showedthat Struto nonwovens with higher thickness, finer fibers and higher fabric grams per square meter can provide bettersound absorption performance. The effect of specific airflow resistance on sound absorption performance was alsoinvestigated. It is observed that sound absorption performance has a strong correlation with specific airflow resistance.The effect of porosity on specific airflow resistance and thermal properties was studied in detail. The result indicated thatporosity has a strong correlation with specific airflow resistance and thermal properties. It was also observed that soundabsorption, the NRC and have an insignificant correlation with thermal conductivity, while they are strongly correlatedwith thermal resistance. The correlation coefficient of the NRC with thermal resistance is 0.9835, indicating that theNRC is directly proportional to the thermal resistance of Struto nonwovens.en
dc.description.urihttp://journals.sagepub.com/doi/10.1177/0040517516681958
dc.format.extent12cs
dc.identifier.doi10.1177/0040517516681958
dc.identifier.issn0040-5175cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/27701
dc.language.isoengcs
dc.publisherSagecs
dc.publisher.cityLondoncs
dc.relation.ispartofseries1cs
dc.relation.urihttp://journals.sagepub.com/doi/10.1177/0040517516681958cs
dc.subjectstruto nonwovencs
dc.subjectsound absorptioncs
dc.subjectairflow resistancecs
dc.subjectporositycs
dc.subjectthermal resistancecs
dc.subjectthermal conductivitycs
dc.titleAcoustic evaluation of Struto nonwovens and their relationship with thermal propertiesen
dc.titleAcoustic Evaluation of Struto Nonwovens And Their Relationship with Thermal Propertiescs
local.citation.epage426-437cs
local.citation.spage426-437cs
local.identifier.publikace1022
local.identifier.wok000422673300006en
local.relation.issue4cs
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