Review of mixture formation unit for CNG motorcycle

The poor mixing homogeneity and air-fuel ratio controllability of the former mixture formation units for a CNG motorcycle are deemed to be the culprits of its lethal exhaust emissions and poor engine performance, In this research, the fuel system of a CNG powered motorcycle, focusing on the mixture...

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Bibliographic Details
Main Authors: Mohsin, R., Yaacob, Z., Y., Chang
Format: Article
Language:English
Published: Faculty of Chemical Engineering & Natural Resources 2008
Subjects:
Online Access:http://eprints.utm.my/id/eprint/8622/1/RMohsin2008_ReviewOfMixtureFormationUnit.pdf
http://eprints.utm.my/id/eprint/8622/
http://www.fkkksa.utm.my/jcnre/
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Summary:The poor mixing homogeneity and air-fuel ratio controllability of the former mixture formation units for a CNG motorcycle are deemed to be the culprits of its lethal exhaust emissions and poor engine performance, In this research, the fuel system of a CNG powered motorcycle, focusing on the mixture formation unit was reviewed. Owing to the significant benefits of the single-point-injection-type (SPIT) system over the mixer-type (MT) system, attempts to develop a mixer with the SPIT system, i.e. Throttle Body Injection Mixer (TBIM), was conducted through Computational Fluid Dynamics (CFD) modelling. CFD results revealed a significant improvement of mixing homogeneity in TBIM.