Experimental investigation and simulation of muffler performance

Mohiuddin, A. K. M. and Rahman, Mohammed Ataur and Gazali, Yazid (2007) Experimental investigation and simulation of muffler performance. In: International Conference on Mechanical Engineering 2007 (ICME 2007), 29-31 December, 2007, Dhaka, Bangladesh.

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Abstract

The purpose of the muffler is to reduce the exhaust noise produced by the engine. The main objective of this study is to simulate and investigate experimentally the muffler of the Alfa Romeo 145 vehicle. The dimensions of the muffler were used to perform the simulation. Experimentations were performed with the same muffler to develop a relationship between the noise and back pressure on muffler design. The performance of a muffler is based on Insertion loss, Transmission loss, and Back pressure. To study the performance of the muffler, simulation was carried out using GAMBIT software with FLUENT. GAMBIT was used to create a mesh surface and to define the boundary conditions of the required object, which was read and analyzed by FLUENT. The experiment on the actual muffler of Alfa Romeo 145 was conducted at different engine speed. Experimental investigation was performed on four parameters: manifold temperature, tail pipe temperature, manifold pressure and sound pressure level (SPL). Curves are drawn and analyzed using the measured parameters.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	3628/1492 (Proceedings of the International Conference on Mechanical Engineering 2007)
Uncontrolled Keywords:	Muffler performance, Insertion loss, Transmission loss.
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1 Motor vehicles
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. A K M Mohiuddin
Date Deposited:	26 Aug 2011 11:36
Last Modified:	26 Jun 2013 16:24
URI:	http://irep.iium.edu.my/id/eprint/1492

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