Avinash, G and Kumar, S and Goutham Krishna, B and Mohammed Akram, B and Manoj, K and Eshanth, R and Sriprasad, NS (2023) Acoustic Analysis of Effect of Louver Window Material in Noise Attenuation. In: 2nd International Conference on Recent Advancements in Mechanical Engineering, ICRAME 2021, 7 - 9 February 2021, Virtual, Online, pp. 389-401.
Full text not available from this repository.Abstract
Applications of louver designs in modern structures have increased extensively in recent times owing to their flexibility of controlling the amount of air flow and sunlight into the building. They also tackle a parallel challenge of involving noise pollution within the region. The phenomenon of noise attenuation over louver windows is investigated using numerical methods to improve the understanding of challenges faced in this scenario. A source of sound is placed on one side of the louver setup, and a microphone is placed on the other side to record the transmitted sound levels. Sound pressure levels are measured for frequencies ranging from 100 to 6000 Hz in intervals of 50 Hz for louver configurations consisting of 6 and 12 louvers. The angle of louvers is varied from 0° to 90° in steps of 15°. Their corresponding attenuations are noted, and the insertion losses are calculated. In the 12-louver configuration, the results validated the model by exhibiting a trend similar to that established through experiments in literature. It is found that the louvers recorded an insertion loss of 0.22, 5.22, and 12.89 when the louvers are arranged at angles of 30°, 60°, and 90°, respectively. The 6-louver configuration is used to understand the effect of coating materials in noise mitigation. Of the materials tested, jute is found to have the best sound attenuation effect. The property of flow resistivity is found to be of key significance in noise attenuation.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Lecture Notes in Mechanical Engineering |
| Publisher: | Springer Science and Business Media Deutschland GmbH |
| Additional Information: | The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH. |
| Keywords: | Acoustic noise; Noise pollution; Numerical methods, Acoustic analysis; Air flow; Flow resistivity; Frequency ranging; Louver; Modern structures; Noise attenuation; Sound pressures level; Sound's levels; Window materials, Insertion losses |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 14 Nov 2022 05:59 |
| Last Modified: | 14 Nov 2022 05:59 |
| URI: | https://eprints.iisc.ac.in/id/eprint/77800 |
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