Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine

This thesis deals with experimental study of a four-stroke spark ignition engine. The objective of this thesis is to evaluate the performance and emission characteristics of the engine while using conventional fuel, gasoline and alternative fuel, compressed natural gas (CNG). The engine operated und...

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Main Author:	Awang, Idris
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TL Motor vehicles Aeronautics Astronautics
Online Access:	http://umpir.ump.edu.my/id/eprint/1970/1/Effect%20of%20compressed%20natural%20gas%20on%20performance%20and%20emission%20of%20a%204-stroke%20spark%20ignition%20engine.pdf
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id	my-ump-ir.1970
record_format	uketd_dc
spelling	my-ump-ir.19702023-07-12T03:52:07Z Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine 2009-11 Awang, Idris TL Motor vehicles. Aeronautics. Astronautics This thesis deals with experimental study of a four-stroke spark ignition engine. The objective of this thesis is to evaluate the performance and emission characteristics of the engine while using conventional fuel, gasoline and alternative fuel, compressed natural gas (CNG). The engine operated under a steady state condition at wide-open throttle condition. The performance and emissions test was performed with various constant loads at different speed within the range of 1500 rpm to 4000 rpm with 500 rpm interval. The first experiment is executed by using gasoline and followed by CNG. The engine performance and emissions such as air-fuel ratio, torque, brake power, brake specific fuel consumption, efficiency, the concentration of CO, CO2, HC, and NOx of gasoline and CNG were measured. The results demonstrated that the potential of reducing emissions while applying CNG as fuel is obvious. However the performance of CNG is reduced as the brake power of engine decrease around 25% compare to gasoline engine. During operate with CNG the engine emissions of CO, CO2 and HC shows a significant reduction but the NOx emission is highly increased compare to gasoline. The results and analysis will be useful for the development of dedicated gas engine in the near future. 2009-11 Thesis http://umpir.ump.edu.my/id/eprint/1970/ http://umpir.ump.edu.my/id/eprint/1970/1/Effect%20of%20compressed%20natural%20gas%20on%20performance%20and%20emission%20of%20a%204-stroke%20spark%20ignition%20engine.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Mechanical Engineering Rosli, Abu Bakar
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Rosli, Abu Bakar
topic	TL Motor vehicles Aeronautics Astronautics
spellingShingle	TL Motor vehicles Aeronautics Astronautics Awang, Idris Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
description	This thesis deals with experimental study of a four-stroke spark ignition engine. The objective of this thesis is to evaluate the performance and emission characteristics of the engine while using conventional fuel, gasoline and alternative fuel, compressed natural gas (CNG). The engine operated under a steady state condition at wide-open throttle condition. The performance and emissions test was performed with various constant loads at different speed within the range of 1500 rpm to 4000 rpm with 500 rpm interval. The first experiment is executed by using gasoline and followed by CNG. The engine performance and emissions such as air-fuel ratio, torque, brake power, brake specific fuel consumption, efficiency, the concentration of CO, CO2, HC, and NOx of gasoline and CNG were measured. The results demonstrated that the potential of reducing emissions while applying CNG as fuel is obvious. However the performance of CNG is reduced as the brake power of engine decrease around 25% compare to gasoline engine. During operate with CNG the engine emissions of CO, CO2 and HC shows a significant reduction but the NOx emission is highly increased compare to gasoline. The results and analysis will be useful for the development of dedicated gas engine in the near future.
format	Thesis
qualification_level	Master's degree
author	Awang, Idris
author_facet	Awang, Idris
author_sort	Awang, Idris
title	Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
title_short	Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
title_full	Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
title_fullStr	Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
title_full_unstemmed	Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
title_sort	effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Mechanical Engineering
publishDate	2009
url	http://umpir.ump.edu.my/id/eprint/1970/1/Effect%20of%20compressed%20natural%20gas%20on%20performance%20and%20emission%20of%20a%204-stroke%20spark%20ignition%20engine.pdf
_version_	1783731887377743872

Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine

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