Experimental Study of Orifice Shape Effect on Noise Reduction of Silencer

Authors

  • Muna S. Kassim Al- Mustansiriyah university, College of engineering, Mechanical engineering department
  • Ammar Fadhil Hussein Al-Maliki Al- Mustansiriyah university, College of engineering, Mechanical engineering department
  • Hayder M. Mohammed Al- Mustansiriyah university, College of engineering, Mechanical engineering department

DOI:

https://doi.org/10.31185/ejuow.Vol7.Iss2.124

Keywords:

Orifice, Noise, Silencer, Internal combustion engines, Transmission losses, Transmission coefficient

Abstract

Abstract: Noise pollution is one of the most problems caused by internal combustion engines. In this study, the reduction of noise by changing the orifice shapes and inserting tape is experimentally investigation. The effect of orifice shape on noise reduction of silencer is presented. The calculation of transmission losses and transmission coefficient of noise for different shapes of orifice by using MATLAB program is obtained. In addition, the frequency for maximum and minimum losses is obtained. The results showed that the use of the square orifice and helical tape were better options to reduce the noise in the silencer.

Vol 7 Issue 2

Additional Files

Published

2020-04-09

Issue

Vol. 7 No. 2 (2019)

Section

Mechanical Engineering

How to Cite

Kassim, M. S., Al-Maliki, A. F. H. ., & Mohammed, H. M. . (2020). Experimental Study of Orifice Shape Effect on Noise Reduction of Silencer. Wasit Journal of Engineering Sciences, 7(2), 1-12. https://doi.org/10.31185/ejuow.Vol7.Iss2.124

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