Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine

This thesis presents an ignition system to improve engines efficiency. The method used in this study is by using a prechamber as a pre-ignition system for the engine, where the prechamber is located at the top of cylinder head. Prechamber is an ignition technology which can improve engines efficienc...

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Main Author:	Mohd Fadzli, Mat Lazim
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/4921/ http://umpir.ump.edu.my/id/eprint/4921/ http://umpir.ump.edu.my/id/eprint/4921/1/cd7350_66.pdf

id	ump-4921
recordtype	eprints
spelling	ump-49212015-03-03T09:21:59Z http://umpir.ump.edu.my/id/eprint/4921/ Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine Mohd Fadzli, Mat Lazim TJ Mechanical engineering and machinery This thesis presents an ignition system to improve engines efficiency. The method used in this study is by using a prechamber as a pre-ignition system for the engine, where the prechamber is located at the top of cylinder head. Prechamber is an ignition technology which can improve engines efficiency. Previous research indicates that the prechamber is responsible for engine out emission. In this project, four concepts of prechamber designs are developed with objective to improve the engines efficiency. The design variable is the volume of the prechamber. Solidworks 2010 software was used for designing process while Ansys 12.1 software was used to perform the simulation of the engine with prechamber. The results of maximum in cylinder pressure and temperature from the simulation are used to determine the best prechamber model. Yamaha FZ150i engine has been chosen as the baseline engine for this project. The engine are disassembled for the measurement process and then modelled in solidworks as a computational domain for the simulation process. The engine is simulated at engine speed of 2000 rpm. The simulation process can be divided into two types which are cold flow simulation and combustion simulation. The result from the simulation shows that the prechamber model that have lowest volume give the maximum in cylinder pressure and temperature which are 19.12 bar and 360.425 K for the cold flow simulation while for the combustion simulation the maximum in cylinder pressure and temperature are 47.54 bar and 2620.7384 K. This results shows that when the volume of the prechamber is low, the compression ratio of the engine is kept high. Compression ratio is the main factor that affecting the value of in cylinder pressure and temperature. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4921/1/cd7350_66.pdf Mohd Fadzli, Mat Lazim (2012) Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:75711&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohd Fadzli, Mat Lazim Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
description	This thesis presents an ignition system to improve engines efficiency. The method used in this study is by using a prechamber as a pre-ignition system for the engine, where the prechamber is located at the top of cylinder head. Prechamber is an ignition technology which can improve engines efficiency. Previous research indicates that the prechamber is responsible for engine out emission. In this project, four concepts of prechamber designs are developed with objective to improve the engines efficiency. The design variable is the volume of the prechamber. Solidworks 2010 software was used for designing process while Ansys 12.1 software was used to perform the simulation of the engine with prechamber. The results of maximum in cylinder pressure and temperature from the simulation are used to determine the best prechamber model. Yamaha FZ150i engine has been chosen as the baseline engine for this project. The engine are disassembled for the measurement process and then modelled in solidworks as a computational domain for the simulation process. The engine is simulated at engine speed of 2000 rpm. The simulation process can be divided into two types which are cold flow simulation and combustion simulation. The result from the simulation shows that the prechamber model that have lowest volume give the maximum in cylinder pressure and temperature which are 19.12 bar and 360.425 K for the cold flow simulation while for the combustion simulation the maximum in cylinder pressure and temperature are 47.54 bar and 2620.7384 K. This results shows that when the volume of the prechamber is low, the compression ratio of the engine is kept high. Compression ratio is the main factor that affecting the value of in cylinder pressure and temperature.
format	Undergraduates Project Papers
author	Mohd Fadzli, Mat Lazim
author_facet	Mohd Fadzli, Mat Lazim
author_sort	Mohd Fadzli, Mat Lazim
title	Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
title_short	Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
title_full	Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
title_fullStr	Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
title_full_unstemmed	Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine
title_sort	design and simulation of prechamber with high pressure cng injector system for single cylinder four stroke engine
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4921/ http://umpir.ump.edu.my/id/eprint/4921/ http://umpir.ump.edu.my/id/eprint/4921/1/cd7350_66.pdf
first_indexed	2023-09-18T21:59:56Z
last_indexed	2023-09-18T21:59:56Z
_version_	1777414330680082432

Design and simulation of prechamber with high pressure CNG injector system for single cylinder four stroke engine

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