Universiti Teknologi Malaysia Institutional Repository

Computational fluid dynamics analysis of an injection mixer for CNG engines simulation

Mohsin, Rahmat and Yaacob, Zulkefli and Chang, Yvonne (2008) Computational fluid dynamics analysis of an injection mixer for CNG engines simulation. Jurnal Teknologi (49F). pp. 297-310. ISSN 0127-9696

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Abstract

The poor mixing in gaseous injection mixers is one of the culprits for unsatisfactory engine performance and lethal exhaust emissions. Thus, effect of injection frequency on the mixing in Throttle Body Injection Mixer (TBIM) for a CNG motorcycle was studied in this work through Computational Fluid Dynamics (CFD) simulation. Injection frequencies of 1, 2, 4, 5 and 7 injections per engine cycle had been investigated using the RNG κ−ε turbulent model. CFD results revealed a significant effect of various injection frequencies on the hydrodynamics of air and fuel in TBIM. It was found that the injection frequency of 4 injections per engine cycle was the most optimum one throughout the case studies.

Item Type:Article
Uncontrolled Keywords:Injection frequency; throttle body injection mixer (TBIM); emision; engine performance; computational fluid dynamics (CFD)
Subjects:T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:8732
Deposited By: Pn Norhayati Abu Ruddin
Deposited On:08 May 2009 08:08
Last Modified:15 Oct 2010 04:37

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