Experiment and CFD Analysis of Reactive Muffler

Yao, Yong; Wei, Shaodong; Zhao, Jinpeng; Chen, Shibin; Zhou, Feng; Yue, Jinxi

doi:10.19026/rjaset.6.3636

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…Yao et al [5] studied the performance of a reactive muffler and its effect on engine power loss by considering the muffler's internal flow field. They optimised the design of a reactive muffler by comparing it with experimental data using computational fluid dynamics simulations.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization of Backpressure in Exhaust Muffler for Automobile

Hamid,

Rosman,

Muslim

2021

JAMEA

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The goal of this study is to optimise the exhaust middle box muffler of an automobile by focusing on the design of the perforated pipes. Back pressure and pressure drop in the exhaust are two characteristics that contribute to the various effects of an internal combustion engine. In this study, the pressure distribution of an existing exhaust middle box muffler on the perforated pipe is evaluated using Computational Fluid Dynamic (CFD) software, and the suitable perforated pipe is identified to improve the middle box muffler performance. The simulation of fluid flow inside a passage of perforated pipe with the same diameter and length but different perforation diameters and distance between perforations was carried out in this study. The CFD analysis simulation results showed the flow pattern with pressure contours for each sample. The results also revealed that each sample had a different pressure drop. An optimised design of perforations inside the middle box muffler pipe results in less pressure drop, which improves exhaust system performance. The simulation results are plotted and a comparison of various perforation diameter and distance can be seen. Larger distance between perforations at 20 mm gives large discrepancies in the results which is 15% difference of pressure drop as compared to smaller distance between perforations that gives less than 1% difference of pressure drop for 6mm and 7mm diameter of perforated pipes. The results also shows that 5mm of perforation diameter gives even larger pressure drop as high as 44.66%.

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Section: Literature Reviewmentioning

confidence: 99%

Optimization of Backpressure in Exhaust Muffler for Automobile

Hamid,

Rosman,

Muslim

2021

JAMEA

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“…The thermal and the acoustic parameters were analysed and the performance of the designed muffler were evaluated. [4,5,6,7,8,9,10,11,12,13].…”

Section: Literature Surveymentioning

confidence: 99%

CFD Analysis on Flow Through a Resistance Muffler of LCV Diesel Engine

Saripalli¹

2015

IJSTS

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The exhaust pollution has become one of the important problems of environment pollution with applications in automobile industry, and the exhausted muffler has been paid attention to improve the performance of engines. Computational Fluid Dynamics (CFD) method was used to explore the aerodynamic performance of the muffler. Resistance muffler research relates with the fields of acoustics, fluid dynamics, heat transfer and mechanism design. The project report simulates the field by numerical method with Cosmos Flow and analyses the effect which the internal flow field has on the performance of the muffler. With this method the pressure distribution in the muffler is simulated and the pressure loss is predicted for the structure modification. The experiment results verify that the assembly performance of the muffler modified is better than the original muffler.

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“…MinChie Chiu [5] worked on multi-chamber shape optimization without considering back pressure. Key Fonseca de Lima, [6][7] evaluated and validated appropriate size of inlet & outlet duct by Parametric optimization. To study complex mufflers an Integrated TMM has developed & validated up to the cut-off frequency comparisons with 3D FEM results, by changing internal configuration The TL characteristic can be altered.…”

Section: Introductionmentioning

confidence: 99%

Effect of Change in Diameter on Muffler Transmission loss using COMSOL

Bhadke¹

2017

IOSR JMCE

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Experiment and CFD Analysis of Reactive Muffler

Cited by 8 publications

References 15 publications

Optimization of Backpressure in Exhaust Muffler for Automobile

Optimization of Backpressure in Exhaust Muffler for Automobile

CFD Analysis on Flow Through a Resistance Muffler of LCV Diesel Engine

Effect of Change in Diameter on Muffler Transmission loss using COMSOL

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