Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine

Nitric oxide and smoke emissions in diesel engine can be controlled by optimising the air/fuel mixture and combustion temperature. Early in-cylinder diesel injection that produces premixed charge can simultaneously reduce NOx and smoke emissions. However, there could be an increase in hydrocarbons a...

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Main Authors:	Nik Rosli, Abdullah, R., Mamat, Wyszynski, Miroslaw L., Tsolakis, Anthanasios, Xu, Hongming
Format:	Article
Language:	English
Published:	IOP Publishing 2013
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/1/P294.pdf

id	ump-4102
recordtype	eprints
spelling	ump-41022018-01-30T04:15:43Z http://umpir.ump.edu.my/id/eprint/4102/ Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine Nik Rosli, Abdullah R., Mamat Wyszynski, Miroslaw L. Tsolakis, Anthanasios Xu, Hongming TJ Mechanical engineering and machinery Nitric oxide and smoke emissions in diesel engine can be controlled by optimising the air/fuel mixture and combustion temperature. Early in-cylinder diesel injection that produces premixed charge can simultaneously reduce NOx and smoke emissions. However, there could be an increase in hydrocarbons and CO emissions due to fuel impinged to the cylinder wall. The focus of the present work is on the effects of a variation of pilot injection timing with EGR to NOx and smoke level of a modern V6 common rail direct injection. This study is carried out at two different engine load conditions of 30 Nm and 55 Nm, at constant engine speed of 2000 rpm. Emissions of NOx are measured from the exhaust sample line by an exhaust gas analyzer (Horiba MEXA-7100EGR). Smoke level is measured by using an AVL 415S smoke meter which provides results directly as a Filter Smoke Number (FSN) unit. The results show that the early pilot injection timing contributed to the lower smoke level and higher NOx emissions. The higher level of NOx is due to higher combustion temperatures resulting from the complete combustion. Meanwhile, the lower smoke level is due to complete fuel combustion and soot oxidation. The early pilot injection timing produces an intermediate main ignition delay which also contributed to complete combustion. The formation of smoke is higher at a high engine load compared with low engine load is due to the higher amount of fuel being injected, resulting in higher smoke formation IOP Publishing 2013-07-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4102/1/P294.pdf Nik Rosli, Abdullah and R., Mamat and Wyszynski, Miroslaw L. and Tsolakis, Anthanasios and Xu, Hongming (2013) Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine. IOP Conference Series: Materials Science and Engineering, 50 (1). pp. 1-8. ISSN 1757-8981 (Print), 1757-899X (Online) http://dx.doi.org/10.1088/1757-899X/50/1/012008 DOI: 10.1088/1757-899X/50/1/012008
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 Nik Rosli, Abdullah R., Mamat Wyszynski, Miroslaw L. Tsolakis, Anthanasios Xu, Hongming Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
description	Nitric oxide and smoke emissions in diesel engine can be controlled by optimising the air/fuel mixture and combustion temperature. Early in-cylinder diesel injection that produces premixed charge can simultaneously reduce NOx and smoke emissions. However, there could be an increase in hydrocarbons and CO emissions due to fuel impinged to the cylinder wall. The focus of the present work is on the effects of a variation of pilot injection timing with EGR to NOx and smoke level of a modern V6 common rail direct injection. This study is carried out at two different engine load conditions of 30 Nm and 55 Nm, at constant engine speed of 2000 rpm. Emissions of NOx are measured from the exhaust sample line by an exhaust gas analyzer (Horiba MEXA-7100EGR). Smoke level is measured by using an AVL 415S smoke meter which provides results directly as a Filter Smoke Number (FSN) unit. The results show that the early pilot injection timing contributed to the lower smoke level and higher NOx emissions. The higher level of NOx is due to higher combustion temperatures resulting from the complete combustion. Meanwhile, the lower smoke level is due to complete fuel combustion and soot oxidation. The early pilot injection timing produces an intermediate main ignition delay which also contributed to complete combustion. The formation of smoke is higher at a high engine load compared with low engine load is due to the higher amount of fuel being injected, resulting in higher smoke formation
format	Article
author	Nik Rosli, Abdullah R., Mamat Wyszynski, Miroslaw L. Tsolakis, Anthanasios Xu, Hongming
author_facet	Nik Rosli, Abdullah R., Mamat Wyszynski, Miroslaw L. Tsolakis, Anthanasios Xu, Hongming
author_sort	Nik Rosli, Abdullah
title	Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
title_short	Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
title_full	Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
title_fullStr	Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
title_full_unstemmed	Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine
title_sort	effects of pilot injection timing and egr on a modern v6 common rail direct injection diesel engine
publisher	IOP Publishing
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/ http://umpir.ump.edu.my/id/eprint/4102/1/P294.pdf
first_indexed	2023-09-18T21:58:36Z
last_indexed	2023-09-18T21:58:36Z
_version_	1777414246684950528

Effects of Pilot Injection Timing and EGR on a Modern V6 Common Rail Direct Injection Diesel Engine

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