Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine

This thesis deals with the numerical setup of a simulation for compressed natural gas in spark ignition engine with pre-chamber for the full cycle four-stroke engine using Computational Fluid Dynamics (CFD). Single-cylinder Yamaha FZ 150i engine is used as the base line engine design for the simulat...

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Main Author:	Muhamad Azman, Mohd Yamin
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/4551/ http://umpir.ump.edu.my/id/eprint/4551/ http://umpir.ump.edu.my/id/eprint/4551/1/cd6843_71.pdf

id	ump-4551
recordtype	eprints
spelling	ump-45512015-03-03T09:19:44Z http://umpir.ump.edu.my/id/eprint/4551/ Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine Muhamad Azman, Mohd Yamin TJ Mechanical engineering and machinery This thesis deals with the numerical setup of a simulation for compressed natural gas in spark ignition engine with pre-chamber for the full cycle four-stroke engine using Computational Fluid Dynamics (CFD). Single-cylinder Yamaha FZ 150i engine is used as the base line engine design for the simulation. The engine is modified by replacing the pre-chamber at the spark plug hole. This study is focused on the combustion model with different ignition and injection timing. 2000 revolution per minute (rpm) and 500 iterations are set as the tested speed and number of iterations per time step respectively. This simulation is started from intake valve open unt il exhaust valve close as a completed cycle of engine. Turbulence is captured using k-ԑ- realizable model. This simulation is divided in 2 cases. Case 1 is set for study the effect of injection timing while Case 2 is set for study the effect of ignition timing. The injection pressure is set 20 bar and 15° crank angle (CA) of injection period. The injection timing that used are 40° before top dead centre (BTDC), 50° BTDC and 60° BTDC while the ignition timing that used are 20° BTDC, 30° BTDC, and 40° BTDC at the 50° CA BTDC. The predicted maximum pressure due to the injection and ignition timing is 27 bar while maximum temperature is 1200 K. For further simulation, more data from experimental work is needed especially pressure and temperature. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4551/1/cd6843_71.pdf Muhamad Azman, Mohd Yamin (2012) Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:73006&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 Muhamad Azman, Mohd Yamin Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
description	This thesis deals with the numerical setup of a simulation for compressed natural gas in spark ignition engine with pre-chamber for the full cycle four-stroke engine using Computational Fluid Dynamics (CFD). Single-cylinder Yamaha FZ 150i engine is used as the base line engine design for the simulation. The engine is modified by replacing the pre-chamber at the spark plug hole. This study is focused on the combustion model with different ignition and injection timing. 2000 revolution per minute (rpm) and 500 iterations are set as the tested speed and number of iterations per time step respectively. This simulation is started from intake valve open unt il exhaust valve close as a completed cycle of engine. Turbulence is captured using k-ԑ- realizable model. This simulation is divided in 2 cases. Case 1 is set for study the effect of injection timing while Case 2 is set for study the effect of ignition timing. The injection pressure is set 20 bar and 15° crank angle (CA) of injection period. The injection timing that used are 40° before top dead centre (BTDC), 50° BTDC and 60° BTDC while the ignition timing that used are 20° BTDC, 30° BTDC, and 40° BTDC at the 50° CA BTDC. The predicted maximum pressure due to the injection and ignition timing is 27 bar while maximum temperature is 1200 K. For further simulation, more data from experimental work is needed especially pressure and temperature.
format	Undergraduates Project Papers
author	Muhamad Azman, Mohd Yamin
author_facet	Muhamad Azman, Mohd Yamin
author_sort	Muhamad Azman, Mohd Yamin
title	Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
title_short	Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
title_full	Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
title_fullStr	Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
title_full_unstemmed	Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
title_sort	multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4551/ http://umpir.ump.edu.my/id/eprint/4551/ http://umpir.ump.edu.my/id/eprint/4551/1/cd6843_71.pdf
first_indexed	2023-09-18T21:59:14Z
last_indexed	2023-09-18T21:59:14Z
_version_	1777414286088339456

Multi dimensional modelling of a high pressure natural gas fuel injection process in prechamber of a single cylinder four-stroke engine

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