Comparison of Experimental and Empirical Approaches for Determination of Sound Absorption Properties of Bagasse and Cornhusk Fibers

Taban, Ebrahim; Amininasab, Somayeh; Mehrzad, Shahrzad; Fattahi, Monireh; Tajik, Leila; Samaei, Seyed Ehsan

doi:10.1080/15440478.2021.1982108

Cited by 4 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This methodology is widely used by some authors. 27-32 The method is based on an iterative numerical method to minimize the differences between the experimental and the predicted sound absorption spectra, returning the non-acoustical parameters. The expression used iswhere α Exp is the experimental sound absorption spectrum, α JCA is the theoretical sound absorption spectrum (obtained from JCA model for the combination of non-acoustical parameters), and f n is the frequency in the range of 200–6400 Hz.…”

Section: Methodsmentioning

confidence: 99%

“…This methodology is widely used by some authors. [27][28][29][30][31][32] The method is based on an iterative numerical method to minimize the differences between the experimental and the predicted sound absorption spectra, returning the non-acoustical parameters. The expression used is…”

Section: Johnson-champoux-allard Modelmentioning

confidence: 99%

“…They found that applying the Dunn-Davern model (DDM) and Nelder-Mead Simplex method provides a good fit between experimental and predicted results, reducing the error. In the work of Taban et al 32 sugar cane waste and corn husks were acoustically investigate using the DBM and Inverted DBM models with and Nelder-Mead Simplex method. The results obtained showed good prediction data according to experimental data.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prediction of sound absorption performance of fibers coming from cigarette butts using a phenomenological model

García-Cobos¹,

Maderuelo-Sanz²

2022

Journal of Industrial Textiles

View full text Add to dashboard Cite

This work deals with experimental and theoretical research about cellulose acetate fibers coming from cigarette butts. This waste, considered one of the most hazardous, numerous, and polluting waste all over the world, represents a high environmental risk. The possibility of using these fibers in sound-absorbing panels is evaluated. The acoustical properties are measured according to ISO 10534-2, and predicted using a phenomenological model over the frequency range from 100 Hz to 6400 Hz. This work includes the study of important non-acoustical properties for a better understanding of the porous structure. The Johnson-Champoux-Allard model provides good accuracy. The experimental results of the sound absorption spectrums show mean errors ranging from 1.1% to 9.0%. Moreover, it is possible to obtain non-acoustic properties of cellulose acetate fibers, which are difficult to obtain experimentally, using the Johnson-Champoux-Allard model and an inverse technique. The input parameters of this model are successfully obtained with low errors concerning the measurements (0.6–5.2% for porosity or 2.6–10.5% for flow resistivity). The results of the sound absorption spectrum at normal incidence of the cellulose acetate show very accurate predictions. The experimental results show values of sound-absorption coefficients close to 1.0 and sound absorption average ranging from 0.42 to 0.8. Therefore, these waste fibers are an alternative to the traditional porous absorbers, mainly composed of synthetic fibers or foams and petroleum-based resins.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Johnson-champoux-allard Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prediction of sound absorption performance of fibers coming from cigarette butts using a phenomenological model

García-Cobos¹,

Maderuelo-Sanz²

2022

Journal of Industrial Textiles

View full text Add to dashboard Cite

show abstract

“…It can effectively absorb and dissipate incident sound waves and reduce sound reflection and propagation, thus reducing noise. 8 Sakthivel et al 1 used SCB fiber to prepare sound absorption composites. The results indicated that the sound absorption performance of the natural green composites was improved by more than half.…”

mentioning

confidence: 99%

“…It can effectively absorb and dissipate incident sound waves and reduce sound reflection and propagation, thus reducing noise. 8 Sakthivel et al. 1 used SCB fiber to prepare sound absorption composites.…”

mentioning

confidence: 99%

Structural characteristics properties of sugarcane bagasse and its sound absorption as composites

Pan,

Zhou,

Gao

et al. 2024

Textile Research Journal

View full text Add to dashboard Cite

Noise pollution is one of the serious environmental pollutions. In recent years, the preparation of sound absorption composites using natural fibers as reinforcement material has attracted much attention. Sugarcane bagasse is a by-product of sugarcane. In order to improve the utilization rate of sugarcane bagasse, enrich and expand the application field of its renewable resources, sugarcane bagasse as a reinforcement material, and polycaprolactone as a matrix material are used to prepare sugarcane bagasse/polycaprolactone sound absorption composites by hot press molding technology to analyze the sound absorption performance. The sound absorption mechanism of the sugarcane bagasse sound absorption composites is revealed. First, the structural characteristics of sugarcane bagasse were characterized, and the relationship between its structure and sound absorption performance was analyzed. Second, the effects of sugarcane bagasse length, mass fraction, hot pressing pressure, hot pressing time, and hot pressing temperature on the sound absorption performance were investigated by one-factor analysis. The results show that when the length of sugarcane bagasse was 1.0 mm, the mass fraction was 35%, the hot pressing pressure was 12 MPa, the hot pressing time was 20 min, and the hot pressing temperature was 130°C, the average sound absorption coefficient was 0.38, the noise reduction coefficient was 0.31, and the maximal sound absorption coefficient was 0.80. This study provides an experimental and theoretical basis for the research and development of sound absorption composites made of sugarcane bagasse, and provides a new solution for the recycling of sugarcane bagasse.

show abstract

Pistachio shell waste as a sustainable sound absorber: an experimental and empirical investigation

Hemmati,

Sheikhmozafari,

Taban

et al. 2024

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Comparison of Experimental and Empirical Approaches for Determination of Sound Absorption Properties of Bagasse and Cornhusk Fibers

Cited by 4 publications

References 38 publications

Prediction of sound absorption performance of fibers coming from cigarette butts using a phenomenological model

Prediction of sound absorption performance of fibers coming from cigarette butts using a phenomenological model

Structural characteristics properties of sugarcane bagasse and its sound absorption as composites

Pistachio shell waste as a sustainable sound absorber: an experimental and empirical investigation

Contact Info

Product

Resources

About