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Numerical study of variable length exhaust pipe in small engine

Mohammed, Akmal Nizam and Razali, Mohd Azahari and Sapit, Azwan and Hushim, Mohd Faisal and Osman, Shahrul Azmir and A. Rahman, Mohamad Farid (2017) Numerical study of variable length exhaust pipe in small engine. ARPN Journal of Engineering and Applied Sciences, 12 (7). pp. 2374-2379. ISSN 18196608

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Small engines, with capacity not exceeding 150 cc, can be divided into two types: two-stroke and four-stroke engines. The exhaust pipe has significant influences on the performance of the engine. Thus, it is necessary to study factors that affect the exhaust in order to improve the performance of the engine. For this early stage, it would be appropriate to conduct the research by using simulations since they only require minimal resources and can be conducted in a short period. The objective of this study is to conduct the simulation for determining the required velocity and pressure in the exhaust pipe. The comparison is done between parameter values from different configuration of exhaust pipes; the most appropriate configuration is then proposed. Three types of exhaust pipe is proposed using computer software and simulations are carried out using ANSYS Workbench 15.0. Results show that the velocity and pressure fluctuate according to the diameter and length of the exhaust pipe. Model 3 exhaust pipe configurations have been selected as the most suitable exhaust pipe for obtaining the maximum pressure and velocity.

Item Type: Article
Uncontrolled Keywords: Small engine; exhaust pipe; exhausts gas
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1-484 Motor vehicles. Cycles
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Energy and Thermofluid Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 29 Aug 2018 01:13
Last Modified: 29 Aug 2018 01:13
URI: http://eprints.uthm.edu.my/id/eprint/10328
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