Record Details

Influences of Various Parameters on Sound Absorption Properties of Vetiver Grass Fiber-based Developed Composite Material

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Influences of Various Parameters on Sound Absorption Properties of Vetiver Grass Fiber-based Developed Composite Material
 
Creator Meena, Kuldeep
Singh, Mahavir
Soni, Kirti
Nair, Anjali S
 
Subject Noise reduction coefficient
Reverberation chamber
Sound absorption coefficient
Vetiver grass fibers
 
Description 422-429
Recently, the trend of natural fibers based eco-friendly materials utilization in the field of acoustic application has been
growing rapidly in place of traditional synthetic materials to counter environmental issues, due to their cheap processing cost
and other several advantages. In this work, sound absorption and thermal insulation properties of the vetiver grass
(Chrysopogon zizanioides) based material have been investigated. Efforts have been carried out in developing porous
vetiver grass fibers based composite material. The developed samples tested for the sound absorption coefficient (alpha)
over a wide range of frequencies (100 Hz – 4000 Hz) by the reverberation chamber method as per IS 8225-1987/ISO 354-
2003/ASTM 423-909-19 and noise reduction coefficient (NRC) also been calculated. The experimental outcome proved that
vetiver grass-based manufactured material has comparable sound absorption to already developed traditional synthetic
materials. Further, two different bulk densities, thickness and fibre lengths-based samples were developed and their sound
absorption acoustic performances were evaluated to see the influences of these parameters on sound absorption
characteristics. Apart from these, some required physical properties as per application requirements were also discussed.
However, in this study major focus has been done on acoustical properties.
 
Date 2022-05-13T09:10:35Z
2022-05-13T09:10:35Z
2022-05
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/59708
 
Language en
 
Publisher CSIR-NIScPR, India
 
Source IJPAP Vol.60(05) [May 2022]