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Study and Investigation of Engine Muffler


M.Ravikumar , Kongunadu college of engineeering and technology; V.Muthukumar, Kongunadu college of engineeering and technology; S.Suresh babu, Kongunadu college of engineeering and technology; S.Kumaravel, Kongunadu college of engineeering and technology


Back- Pressure, Noise, CFD


The main drawback of the automobile engine exhaust system is producing excess noise and it is hazardous to human being causes headache, stress etc, The maximum allowable noise level for automobile is 85 dB. The noise pollution is reduced by using well design muffler. The reactive mufflers are used for reducing noise by using the expansion chambers. The main factor, which is considered in noise reduction is minimizing back-pressure and it should not affect the engine performance. The computational fluid dynamics analysis is used for predicting the muffler performances. In this study, the geometry the perforated holes are varied and the fluid flow analysis is carried out. The three mufflers (muffler I muffler II and muffler III) are considered with different geometrical parameters and the number of the perforated holes are varied. From the result the maximum pressure drop is obtained while increasing the number of perforated holes. Due to the increase in pressure drop reduce the exhaust noise. The pressure and velocity of the mufflers are compared in this study. The ANSYS fluent 14.5 version software is used for the fluid flow for the exhaust muffler.

Other Details

Paper ID: IJSRDV4I90527
Published in: Volume : 4, Issue : 9
Publication Date: 01/12/2016
Page(s): 825-827

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