Abstract
The pressure waves escape from the engine exhaust with a high velocity, producing an offensive exhaust noise. A properly designed exhaust silencer/muffler is helpful to reduce exhaust noise. In this paper, the effect of the shape variation in expansion chamber on the transmission loss of a reactive muffler (In line type) has been presented. The purpose of this paper is to evaluate the performance of the tapered expansion chamber muffler. The transfer matrix method is used for the evaluation of the transmission loss of the muffler. In addition, this paper discusses the shape variation from simple expansion chamber to tapered expansion chamber. The results revealed that as the area of tapered expansion chamber muffler approaches to the area of simple expansion chamber muffler, the transmission loss of both the mufflers become equal. Therefore, reactive muffler having combination of both designs can give the better performance.
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References
Davis DD, Stokes JM, Moorse SL (1954) Theoretical and experimental investigation of mufflers with components on engine muffler design. NACA Report, p 1192
Miles J (1944) The reflection of sound due to change in cross section of a circular tube. J Acoust Soc Am 16:14–19
Lee JK, Oh KS, Lee JW (2020) Methods for evaluating in-duct noise attenuation performance in a muffler design problem. J Sound Vib 464
Alfredson RJ (1972) The propagation of sound in a circular duct of continuously varying cross-sectional area. J Sound Vib 23(4):433–442
Gupta AK, Tiwari A (2015) Transfer matrix method for noise attenuation on single expansion chamber muffler having central inlet and central outlet with experimental techniques and FEA validation. Int J Theor Appl Sci 7(2):14–20
Munjal ML (1987) A simple numerical method for three-dimensional analysis of simple expansion chamber mufflers of rectangular as well as circular cross-section with a stationary medium. J Sound Vib 116(1):71–88
Arslan H, Ranjbar M, Secgin E, Celik V (2020) Theoretical and experimental investigation of acoustic performance of multi-chamber reactive silencers. Appl Acoust 157
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Vishwakarma, S.K., Pawar, S.J. (2021). Simulation Studies on the Transition from Simple Expansion Chamber Muffler to Tapered Expansion Chamber Muffler. In: Sikarwar, B.S., Sundén, B., Wang, Q. (eds) Advances in Fluid and Thermal Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0159-0_34
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DOI: https://doi.org/10.1007/978-981-16-0159-0_34
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