Design , Construction and Evaluation of Exhaust Silencer for MF Tractor
Subject Areas :
Keywords: Silencer, MF tractor, Exhaust design – Engine sound reduction,
Abstract :
An exhaust system delivers burned gases from combustion chambers of an engine to the atmosphere while reducing the engine noise at silencer of outlet pipe. In this research an exhaust silencer was desgined and constructed for the MF tractor which was tested and evaluated. Exhaust system of an engine consist of: exhaust manifold, exhaust pipe, silencer, and diffusion pipe. Silencer is used to reduce external gas velocity and so engine noise. Silencer is desgined in such away that the out going gases from the engine slowly expand inside it, and also heat energy sufficiently. Design of silencer has considerable effect on elimination of back-pressuer and abnormal noises. Rock wool which is an acoustic insulator and sound reducer is used in design ment an construction of this silencer. Tests and evaluation of the silencer indicated that out coming sound level can be reduced as much as dB(A) as compared to exiting model of silencer for MF tractor.