Optimization of Silencer – An Integrated Approach of Acoustic Performances & Backpressure
N. V. Pujari1, Mahajan S.R.2, Mohite Y.B.3

1Prof N. V. Pujari, Head Of Mechanical Department, Shivaji University, genisis College Of Engg., Kolhpur, India.
2Dr. Mahajan S.R. ,Head Of Mechanical Department, Rajaram shinde College Of Engg.,Mumbai University, Chiplun, India.
3Mr. Mohite Y. B., Automobile Department, Shivaji University, K.I.T. College, Kolhpur, India.

Manuscript received on December 11, 2013. | Revised Manuscript received on December 15, 2013. | Manuscript published on December 25, 2013. | PP:21-25 | Volume-2 Issue-2, December 2013. | Retrieval Number: B0593122213/2013©BEIESP

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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: A pollutant of concern to the mankind is the exhaust noise in the internal combustion engine. However this noise can be reduced sufficiently by means of a well designed silencer. The suitable design and development will help to reduce the noise level, but at the same time the performance of the engine should not be hampered by the back pressure caused by the silencer. With the stringent legislative requirements for noise in automobiles, the concern for properly designed s for specific applications is increasing .Optimized design of requires an integrated study of acoustical and engine performance viz. backpressure. However, the Backpressure loss itself depends upon engine characteristics geometry indicated by the transmission loss, flow induced noise, type of – reactive, absorptive, hybrid, etc. Most of the work till date covers the acoustical and engine performance in isolation rather than in an integrated fashion due to the multidisciplinary nature of the problem. The objective of this study is to develop an integrated methodology to predict the performance of the at the design stage resulting in an optimized time and cost effective design. In the present study, the acoustical and engine performance of was predicted using CFD techniques. Using the integrated approach, it was possible to optimize the design and meet the two conflicting requirements and reduce the design cycle time.
Keywords: Silencer, Acoustic, Backpressure, CFD.