Impact of two-stage injection fuel quantity on engine-out responses of a common-rail diesel engine fueled with coconut oil methyl esters-diesel fuel blends

How, HG; Teoh, YH; Masjuki, HH; Nguyen, HT; Kalam, MA; Chuah, HG; Alabdulkarem, A

Impact of two-stage injection fuel quantity on engine-out responses of a common-rail diesel engine fueled with coconut oil methyl esters-diesel fuel blends

How, HG Teoh, YH Masjuki, HH Nguyen, HT Kalam, MA Chuah, HG Alabdulkarem, A

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Renewable Energy, 2019, 139, pp. 515-529
Issue Date:: 2019-08-01

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Field	Value	Language
dc.contributor.author	How, HG
dc.contributor.author	Teoh, YH
dc.contributor.author	Masjuki, HH
dc.contributor.author	Nguyen, HT
dc.contributor.author	Kalam, MA
dc.contributor.author	Chuah, HG
dc.contributor.author	Alabdulkarem, A
dc.date.accessioned	2022-09-13T22:42:01Z
dc.date.available	2022-09-13T22:42:01Z
dc.date.issued	2019-08-01
dc.identifier.citation	Renewable Energy, 2019, 139, pp. 515-529
dc.identifier.issn	0960-1481
dc.identifier.issn	1879-0682
dc.identifier.uri	http://hdl.handle.net/10453/161800
dc.description.abstract	Two-stage injection with different biodiesel percentage is investigated where first and second injections were implemented with different SOI timings at various mass ratio under constant speed of 2000 rpm and 60 Nm of torque. The results reveal that maximum BTE of 32.4% and minimum BSFC of 245.5 g/kWh can be achieved simultaneously with injection mass ratio of 50:50 at advanced SOI timing using baseline diesel. A considerably lower level of NOx below 90 ppm is achievable via late SOI timing by using B20 or B50 biodiesel blends with injection mass ratio of 25:75. Specifically, the lowest NOx of 82 ppm can be achieved with smoke emission level still remains below 5% when B50 biodiesel blend and 25:75 injection mass ratio is tested. The highest reduction of 5.3% of smoke compared to diesel was achieved when B50 was used with 50:50 mass ratio at retarded SOI of 2°ATDC. It was found that simultaneous NOx and smoke reduction compared to that of fossil diesel is feasible with the application of B50 biodiesel blend and execution of retarded SOI timing and injection mass ratio of 25:75. Lastly, two-stage fuel injection is a practical strategy to simultaneously decrease NOx and smoke emissions.
dc.language	English
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Renewable Energy
dc.relation.isbasedon	10.1016/j.renene.2019.02.112
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0913 Mechanical Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Energy
dc.title	Impact of two-stage injection fuel quantity on engine-out responses of a common-rail diesel engine fueled with coconut oil methyl esters-diesel fuel blends
dc.type	Journal Article
utslib.citation.volume	139
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0913 Mechanical Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-13T22:41:43Z
pubs.publication-status	Published
pubs.volume	139

Abstract:

Two-stage injection with different biodiesel percentage is investigated where first and second injections were implemented with different SOI timings at various mass ratio under constant speed of 2000 rpm and 60 Nm of torque. The results reveal that maximum BTE of 32.4% and minimum BSFC of 245.5 g/kWh can be achieved simultaneously with injection mass ratio of 50:50 at advanced SOI timing using baseline diesel. A considerably lower level of NOx below 90 ppm is achievable via late SOI timing by using B20 or B50 biodiesel blends with injection mass ratio of 25:75. Specifically, the lowest NOx of 82 ppm can be achieved with smoke emission level still remains below 5% when B50 biodiesel blend and 25:75 injection mass ratio is tested. The highest reduction of 5.3% of smoke compared to diesel was achieved when B50 was used with 50:50 mass ratio at retarded SOI of 2°ATDC. It was found that simultaneous NOx and smoke reduction compared to that of fossil diesel is feasible with the application of B50 biodiesel blend and execution of retarded SOI timing and injection mass ratio of 25:75. Lastly, two-stage fuel injection is a practical strategy to simultaneously decrease NOx and smoke emissions.

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http://hdl.handle.net/10453/161800