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Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior

Air motion in a cylinder of a spark ignition engine affects the air-fuel mixing behavior, combustion quality and the production of the exhaust gas emission. With upcoming stringent market regulations for petrol engines, it is necessary to enhance air-fuel mixing for proper combustion. Air-fuel mixin...

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Main Authors: Sabrudin, Mohd. Aizad Sazrul, Muhamad Said, Mohd. Farid, Abdul Latiff, Zulkarnain
Format: Conference or Workshop Item
Published: 2015
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/61278/
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spelling my.utm.612782017-07-30T08:34:54Z http://eprints.utm.my/id/eprint/61278/ Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior Sabrudin, Mohd. Aizad Sazrul Muhamad Said, Mohd. Farid Abdul Latiff, Zulkarnain TJ Mechanical engineering and machinery Air motion in a cylinder of a spark ignition engine affects the air-fuel mixing behavior, combustion quality and the production of the exhaust gas emission. With upcoming stringent market regulations for petrol engines, it is necessary to enhance air-fuel mixing for proper combustion. Air-fuel mixing in an engine combustion chamber is studied by assessing the induced air flow swirl motion. Swirl is a rotational motion of a bulk mass within cylinder. Swirl is generated by shaping and contouring the intake manifold, valve ports and even the piston face. Swirl enhances air-fuel mixing and helps to spread flame-front during combustion. The objective of this paper is to analyze the impact of the asymmetric intake valve lift configurations towards in-cylinder air flow swirl behavior. The study is done on 4 cylinders, 1.3L engine. The engine has 2 intake valves in every cylinder. Computational Fluid Dynamics (CFD) was used as a tool to assess the swirl motion in the case study models. At the end of this paper, the characteristics of the swirl flow motion on every case study models is studied by measuring the swirl ratio value inside the combustion chamber. Also, the pattern of the swirling flow inside the combustion chamber is studied by analyzing the velocity vector and turbulent kinetic energy plots. 2015 Conference or Workshop Item PeerReviewed Sabrudin, Mohd. Aizad Sazrul and Muhamad Said, Mohd. Farid and Abdul Latiff, Zulkarnain (2015) Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior. In: International Conference on Computational Fluid Dynamics in Research & Industry 2015, 17-19 Aug, 2015, Kuala Lumpur, Malaysia. http://www.wikicfp.com/cfp/servlet/event.showcfp?eventid=43990&copyownerid=75022
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Sabrudin, Mohd. Aizad Sazrul
Muhamad Said, Mohd. Farid
Abdul Latiff, Zulkarnain
Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
description Air motion in a cylinder of a spark ignition engine affects the air-fuel mixing behavior, combustion quality and the production of the exhaust gas emission. With upcoming stringent market regulations for petrol engines, it is necessary to enhance air-fuel mixing for proper combustion. Air-fuel mixing in an engine combustion chamber is studied by assessing the induced air flow swirl motion. Swirl is a rotational motion of a bulk mass within cylinder. Swirl is generated by shaping and contouring the intake manifold, valve ports and even the piston face. Swirl enhances air-fuel mixing and helps to spread flame-front during combustion. The objective of this paper is to analyze the impact of the asymmetric intake valve lift configurations towards in-cylinder air flow swirl behavior. The study is done on 4 cylinders, 1.3L engine. The engine has 2 intake valves in every cylinder. Computational Fluid Dynamics (CFD) was used as a tool to assess the swirl motion in the case study models. At the end of this paper, the characteristics of the swirl flow motion on every case study models is studied by measuring the swirl ratio value inside the combustion chamber. Also, the pattern of the swirling flow inside the combustion chamber is studied by analyzing the velocity vector and turbulent kinetic energy plots.
format Conference or Workshop Item
author Sabrudin, Mohd. Aizad Sazrul
Muhamad Said, Mohd. Farid
Abdul Latiff, Zulkarnain
author_facet Sabrudin, Mohd. Aizad Sazrul
Muhamad Said, Mohd. Farid
Abdul Latiff, Zulkarnain
author_sort Sabrudin, Mohd. Aizad Sazrul
title Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
title_short Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
title_full Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
title_fullStr Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
title_full_unstemmed Effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
title_sort effects of asymmetric intake valve lift configuration towards in-cylinder air flow behavior
publishDate 2015
url http://eprints.utm.my/id/eprint/61278/
http://www.wikicfp.com/cfp/servlet/event.showcfp?eventid=43990&copyownerid=75022
_version_ 1643655123265650688
score 13.211869

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