Abstract: This article is a bibliographical review of the muffler used in automobile industry. A muffler (or silencer in British English) is a device for reducing the amount of noise emitted by the exhaust of an internal combustion engine. This noise is reduced as the transmission loss (TL) inside the muffler increases. Different components are present in the muffler for transmission loss like perforated tubes, absorption materials etc. by which noise is reduced. This review depicts about transmission loss characteristics, different methods used in the design, calculation and construction of muffler both experimentally and in practical. Transmission loss using sound absorption material is the main feature in this review. Different sound absorption materials that are currently used for noise reduction are quoted and described.
Keywords: Muffler, Transmission loss, Absorption material.
Title: Absorption Materials Used In Muffler: A Review
Author: Ujjal Kalita, Abhijeet Pratap, Sushil Kumar
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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