International Journal of Applied Research
Vol. 1, Issue 8, Part G (2015)
Design and Optimization of Perforated Muffler in an Automobile Exhaust System
A muffler is an important part of an engine system used in exhaust system to reduce exhaust gas noise level. The literature review reveals that the exhaust gas noise level depends upon various factors. Muffler geometry, extension in inlet and outlet valves, number of hole perforations and its diameter are the factors which affects noise from engines. The objective of this study is to reduce exhaust gas noise level. The performance of the muffler is assessed by analyzing pressure variation, exhaust gas flow pattern, length of expansion chamber, transmission loss. The K-epsilon method is used to obtain desired outputs by inputting sinusoidal nature of pressure wave. The modeling of muffler is done by using modeling software CATIA V5 and performance parameters are estimated using Star CCM+ software. This study helps to improve reduce the noise level and environmental noise pollution. The results obtained from software are compared with analytical method and they are found close agreement with each other.Later on the model with higher transmission loss is selected and the fabrication is done for the same. Exprimental testing is done for the fabricated model.At the end, comparison is done for analytical and experimetal graphs.
How to cite this article:
Vijay M Mundhe, Eknath R Deore. Design and Optimization of Perforated Muffler in an Automobile Exhaust System. Int J Appl Res 2015;1(8):390-395.