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