EXPERIMENTAL
INVESTIGATIONS ON EFFECTIVENESS OF ACOUSTIC MATERIAL AS THERMAL INSULATOR
Hardeep Singh1 ,
Sukhdeep S. Dhami1 , Chaman Chandel2 & Rahul Arora1
1Department of
Mechanical Engineering, National Institute of Technical Teachers Training and
Research, Chandigarh, India
2 Snow &
Avalanche Study Establishment, Chandigarh
ABSTRACT
Sound pollution is big problem
now-a-days and it causes many health issues. Soundproofing can be used to
mitigate the effect of sound pollution, but it adds to the building cost.
However, acoustic materials have low thermal conductivity and they may result
in saving due to reduced use of electrical energy for heating/cooling of
buildings. In the present work, the effectiveness of a commercially available
acoustic material, made of Compressed Wood Fiber Cement Composites with a
backing of Anti vibration Pad, as a thermal insulator is experimentally
investigated. A CAD model of anti-vibration pad material was developed by
scanning it with micro CT, converting grey scale data into binary scale by CTan
software and extracting 3D- Model from binary data by using Scan IP software.
The CAD model was imported into ANSYS workbench for determining thermal
conductivity of the anti-vibration pad, which was experimentally validated. The
thermal conductivity of composite material was then calculated by Fourier
equation. A comprehensive CAD model of anti-vibration pad, composite material
and brick-and-mortar wall was used to simulate the variations in room
temperature with ambient temperature for one calendar year. The results show
that acoustic insulation material also serves as a thermal insulator keeping
the room nearly constant with varying ambient temperature.
KEYWORDS
Acoustic Material, Silent Board,
Thermal Insulator, Anti-Vibration Pad, ANSYS
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