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http://hdl.handle.net/123456789/426
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| Title: | An Estimation of Correlation on Thermo-Acoustic Properties of Mineral Wool |
| Authors: | Srivastava, R K
Dhabal, R L
Suman, B M
Saini, Anuj
Panchal, Poonam |
| Keywords: | Correlation
Thermo-acoustic
Mineral wool |
| Issue Date: | 29-Sep-2011 |
| Abstract: | Building materials are widely used for thermal insulation and sound absorption in buildings. The recent trend of their utilization by the architects for improved thermo-acoustical environment has widened the scope. Since large-scale industries on building materials are increasing, it is very essential that thermo-acoustical characteristics of materials be studies for their improved performance and utilization in the abatement of community noise and thermal comforts indoors.
Mineral wool is a class of building material available in the form of blankets and acoustical tiles. In these materials sound energy is dissipated in the interstices of the fibers. Their efficiency is maximum at high frequencies where the wavelength of the acoustic wave becomes comparable with the thickness of the material used as absorbers. Thermal performances of fibrous material are found to be very good. It is also observed that as density of such materials increases, thermal conductivity and sound absorption changes.
The paper describes the thermal and acoustical properties of this fibrous material in detail. Thermal conductivity and sound absorption coefficient of materials has been determined at Central Building Research Institute, Roorkee. Measurement processes for these properties have also been described in this paper. For measurement of sound absorption coefficient standing wave method is used and for thermal conductivity Guarded Hot Plate Apparatus is used. Finally the paper describes regression equations correlation between Noise reduction coefficient (NRC) and Thermal conductivity (K) for mineral wool material .The equation is useful to determine NRC value by knowing the K-value and vice versa for indoor design purposes. |
| Description: | Journal of Scientific and Industrial Research, vol.65, March,2006,232-236 |
| URI: | http://hdl.handle.net/123456789/426 |
| Appears in Collections: | Published Articles
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