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Method for design and evaluation of ICE exhaust silencers
journal contribution
posted on 2020-09-14, 09:04 authored by Ahmed Ahmedov, Nicholas Beavis, Nikolaos Kalantzis, Antonios PezouvanisAntonios Pezouvanis, David Rogers, Kambiz EbrahimiKambiz EbrahimiThe noise levels generated by an unmuffled engine exhaust system can be identified as the loudest vehicle noise source. The muffler or silencer is an essential component of the internal combustion engine exhaust system. Its main function is to reduce the exhaust-generated noise to an acceptably low level. Its design development is a complex process affecting the engine efficiency and thus fuel consumption, emissions and overall noise generation. This paper focuses on the design development of a muffler for a single-cylinder engine application. A 1D GT-Power model of a single valve engine was developed. Additionally, an analytical muffler preliminary design methodology was introduced. The methodology provides guidelines for muffler grade selection, sizing of different components, calculation of backpressure as a function of the exhaust gas flow rate. Two custom mufflers design concepts were developed for the single-cylinder engine based on the introduced analytical methodology. Two commercial single-cylinder engine muffler designs available from Yanmar and Loncin were considered for the engine performance evaluation simulation. The presented combination of analytical and numerical modelling procedures can reduce the overall length of the muffler development stage by eliminating faulty design concepts and refining the muffler’s performance parameters.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
International Journal of PowertrainsVolume
10Issue
1Pages
1-26Publisher
InderscienceVersion
- AM (Accepted Manuscript)
Rights holder
© Inderscience Enterprises LtdPublisher statement
This paper was accepted for publication in the journal International Journal of Powertrains and the definitive published version is available at https://doi.org/10.1504/IJPT.2021.114735Acceptance date
2020-05-20Publication date
2021-04-19Copyright date
2021ISSN
1742-4267eISSN
1742-4275Publisher version
Language
- en
Depositor
Dr Ahmed Ahmedov. Deposit date: 10 September 2020Usage metrics
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