Computational investigation of air-fuel mixing system for natural gas powered motorcycle

The idea of incorporating a newly designed mixer into the existing carburetor of conventional motorcycle is the main objective of the development of natural gas motorcycle fuel system. In a bi-fuel motorcycle, the carburetor still plays a vital role in switching from fuel gas to petrol mode operatio...

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Main Authors: Yeap, Beng Hi, Mustafa, Azeman, Yaacob, Zulkefli
Format: Article
Language:English
Published: 2001
Subjects:
Online Access:http://eprints.utm.my/731/1/AzemanMustafa2001_ComputationalInvestigationofAirFuel.pdf
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author Yeap, Beng Hi
Mustafa, Azeman
Yaacob, Zulkefli
author_facet Yeap, Beng Hi
Mustafa, Azeman
Yaacob, Zulkefli
author_sort Yeap, Beng Hi
collection ePrints
description The idea of incorporating a newly designed mixer into the existing carburetor of conventional motorcycle is the main objective of the development of natural gas motorcycle fuel system. In a bi-fuel motorcycle, the carburetor still plays a vital role in switching from fuel gas to petrol mode operation and vice-versa. The carburetor is the most important part of the fuel system of a motorcycle. All motorcycle engines carry variable venturi jet carburetors. The basic operation of the carburetor mainly depends on the restriction barrel called the venturi. When airflows through the venturi, its speed increases and its pressure decreases. Gasoline in its liquid state does not burn readily in the combustion chamber; only gas does. That is where the carburetor plays its part by atomizing the gasoline into mist in the air stream in order to burn efficiently in the combustion chamber. The decisive advantage of the prototype mixer now under development is that it does not require any atomizing process as the inlet fuel is in gas form. The main challenge focuses on designing a mixing device which mixes the supplied gas with the incoming air at an optimum ratio. In order to surmount the identified problems, the way fuel gas and air flow in the mixer have to be analyzed. In this case, the Computational Fluid Dynamics or CFD approach is applied in the design of the prototype mixer. The present work is aimed at further understanding of the air and fuel flow structure by performing CFD studies using a commercially available FLUENT code.
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spelling utm.eprints-7312012-05-14T08:46:01Z http://eprints.utm.my/731/ Computational investigation of air-fuel mixing system for natural gas powered motorcycle Yeap, Beng Hi Mustafa, Azeman Yaacob, Zulkefli TP Chemical technology The idea of incorporating a newly designed mixer into the existing carburetor of conventional motorcycle is the main objective of the development of natural gas motorcycle fuel system. In a bi-fuel motorcycle, the carburetor still plays a vital role in switching from fuel gas to petrol mode operation and vice-versa. The carburetor is the most important part of the fuel system of a motorcycle. All motorcycle engines carry variable venturi jet carburetors. The basic operation of the carburetor mainly depends on the restriction barrel called the venturi. When airflows through the venturi, its speed increases and its pressure decreases. Gasoline in its liquid state does not burn readily in the combustion chamber; only gas does. That is where the carburetor plays its part by atomizing the gasoline into mist in the air stream in order to burn efficiently in the combustion chamber. The decisive advantage of the prototype mixer now under development is that it does not require any atomizing process as the inlet fuel is in gas form. The main challenge focuses on designing a mixing device which mixes the supplied gas with the incoming air at an optimum ratio. In order to surmount the identified problems, the way fuel gas and air flow in the mixer have to be analyzed. In this case, the Computational Fluid Dynamics or CFD approach is applied in the design of the prototype mixer. The present work is aimed at further understanding of the air and fuel flow structure by performing CFD studies using a commercially available FLUENT code. 2001 Article NonPeerReviewed application/pdf en http://eprints.utm.my/731/1/AzemanMustafa2001_ComputationalInvestigationofAirFuel.pdf Yeap, Beng Hi and Mustafa, Azeman and Yaacob, Zulkefli (2001) Computational investigation of air-fuel mixing system for natural gas powered motorcycle. Proceedings of The 15th Symposium of Malaysian Chemical Engineers SOMChE 2001 . (Unpublished)
spellingShingle TP Chemical technology
Yeap, Beng Hi
Mustafa, Azeman
Yaacob, Zulkefli
Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title_full Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title_fullStr Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title_full_unstemmed Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title_short Computational investigation of air-fuel mixing system for natural gas powered motorcycle
title_sort computational investigation of air fuel mixing system for natural gas powered motorcycle
topic TP Chemical technology
url http://eprints.utm.my/731/1/AzemanMustafa2001_ComputationalInvestigationofAirFuel.pdf
work_keys_str_mv AT yeapbenghi computationalinvestigationofairfuelmixingsystemfornaturalgaspoweredmotorcycle
AT mustafaazeman computationalinvestigationofairfuelmixingsystemfornaturalgaspoweredmotorcycle
AT yaacobzulkefli computationalinvestigationofairfuelmixingsystemfornaturalgaspoweredmotorcycle