This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Design and Development of an Exhaust Muffler with Improved Transmission Loss for a Naturally Aspirated Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 11, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Event: International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility
In the last two decades, most of the advances in exhaust systems such as acoustic filters and mufflers had been developed to attenuate noise levels and emissions as per environment norms. The purpose of this research work is to design, analyze and test an exhaust muffler in order to determine the pressure drop and noise reduction in the exhaust system. Computational Fluid Dynamic simulations were performed using ANSYS Fluent 16.2. The muffler diameter and length were chosen where as perforations and baffles were also considered so as to have the maximum pressure drop and noise reduction. This study is aimed at investigating a reactive perforated muffler. Several designs were considered for maximum pressure drop and the best was finally selected for manufacturing. Experimental testing was carried out with the finalized muffler prototype. Further the validation was done on a muffler in which the inlet pressure was found lower than that of the simulated results but the experimental outlet pressure was found higher than the simulated results. The backpressure was found to be less due to excess of air passage inside the muffler.
CitationSantosh, D., Senthilkumar, S., and Rajasingh, E., "Design and Development of an Exhaust Muffler with Improved Transmission Loss for a Naturally Aspirated Diesel Engine," SAE Technical Paper 2019-28-0046, 2019, https://doi.org/10.4271/2019-28-0046.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
- Om, A.G., Arthanareeswaren, G., and Varadarajan, K.N. , “CFD Study on Pressure Drop and Uniformity Index of Three Cylinder LCV Exhaust System,” Procedia Engineering 127:1211-1218, 2015.
- Mishra, P.C., Kar, S.K., Mishra, H., and Gupta, A. , “Modeling for Combined Effect of Muffler Geometry Modification and Blended Fuel Use on Exhaust Performance of a Four-Stroke Engine: A Computational Fluid Dynamics Approach,” Applied Thermal Engineering 108(5):1105-1118, 2016.
- Shah, S., Saisankaranarayana, K., Kalyankumar, S., Hatti, and Thombare, D.G. , “A Practical Approach towards Muffler Design, Development and Prototype Validation,” SAE Technical Paper 2010-32-0021, 2010, doi:10.4271/2010-32-0021.
- Elsayed, A., Bastien, C., Jones, S., Christensen, J., and Kassem, H. , “Investigation of Baffle Configuration Effect on the Performance of Exhaust Mufflers,” Case Studies in Thermal Engineering 10:86-94, 2017.
- Panigrahi, S. and Munjal, M.L. , “A Generalized Scheme for Analysis of Multifarious Commercially Used Mufflers,” Applied Acoustics 68(6):660-681, 2007.
- Sherekar, V. and Dhamangaonkar, P.R. , “Design Principles for an Automotive Muffler,” International Journal of Applied Engineering Research 9(4):483-489, 2014.
- Zhu, Y.-w., Zhu, F.-w., Zhang, Y.-s., and Wei, Q.-g. , “The Research on Semi-Active Muffler Device of Controlling the Exhaust pipe’s Low-Frequency Noise,” Applied Acoustics 116:9-13, 2017.
- Sreenath, A.V. and Munjal, M.L. , “Evaluation of Noise Attenuation Due to Exhaust Mufflers,” Journal of Sound and Vibration 12(1):1-19, 1970.
- Shao, Y.-l. , “A Study on Exhaust Muffler Using a Mixture of Counter-Phase Counteract and Split-Gas Rushing,” Procedia Engineering 15:4409-4413, 2011.
- Stadnik, D.M., Igolkin, A.A., Sverbilov, V.Y., and Afanasev, K.M. , “The Muffler Performance Effect on Pressure Reducing Valve Dynamics,” Procedia Engineering 176:706-717, 2017.
- Langley, A.J. , “Actively Sound Reduced Mufflers Having a Venturi Effect Configuration,” US 5550334 A, Aug 27, 1996.
- Sishtla, V.M. , “Muffler for Noise Reduction,” US 7100737 B2 5, Sept. Sept. 2006.
- Fischer Jr John, C. , “Exhaust Silencer,” US 2798569A, Jul 9, 1957.
- Borla, A. , “Exhaust Muffler for Internal Combustion Engines,” US 5198625A, Mar 30, 1993.
- Bartlett, W.L. , “Muffler for Automobile,” US15280698, 2012-02-07.