Sensitivity analysis of transient diesel engine simulation

Rakopoulos, CD; Giakoumis, EG

dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Giakoumis, EG	en
dc.date.accessioned	2014-03-01T01:25:08Z
dc.date.available	2014-03-01T01:25:08Z
dc.date.issued	2006	en
dc.identifier.issn	0954-4070	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17555
dc.subject	Friction	en
dc.subject	Fuel pump	en
dc.subject	Heat conduction	en
dc.subject	Multicylinder	en
dc.subject	Radiation temperature	en
dc.subject	Sensitivity analysis	en
dc.subject	Transient operation	en
dc.subject	Turbocharged diesel engine	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	Computer simulation	en
dc.subject.other	Engine mountings	en
dc.subject.other	Fuel pumps	en
dc.subject.other	Heat conduction	en
dc.subject.other	Heat convection	en
dc.subject.other	Instrument errors	en
dc.subject.other	Radiation effects	en
dc.subject.other	Sensitivity analysis	en
dc.subject.other	Multicylinder	en
dc.subject.other	Radiation temperature	en
dc.subject.other	Transient operation	en
dc.subject.other	Turbocharged diesel engine	en
dc.subject.other	Diesel engines	en
dc.title	Sensitivity analysis of transient diesel engine simulation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1243/095440705X69641	en
heal.identifier.secondary	http://dx.doi.org/10.1243/095440705X69641	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	An experimentally validated simulation code is used to study the errors induced by various, usually applied, modelling simplifications in the prediction of diesel engine operation under transient conditions after a ramp increase in load. The following simulation cases are investigated: multicylinder engine modelling, with the equations of each cylinder solved separately during each transient cycle; cylinder wall temperature modelling, with the analytical heat convection-conduction scheme compared with the usual constant wall temperature approach; in-cylinder radiation temperature correction to compensate for the underestimation of maximum temperatures from single-zone modelling; mathematical fuel pump modelling in contrast to steady state fuel injection curves; friction modelling during a transient event simulated using equations per degree crank angle as opposed to the 'mean' f.m.e.p. approach; and 'deterioration' scenarios applied to both friction and combustion rates to compensate for the peculiarities of transient operation. It is revealed that the multicylinder, analytical friction, and detailed fuel pump modelling can have an important effect on the prediction of diesel engine transient operation and thus should not be excluded from a complete transient model. The cylinder wall temperature simulation used only marginally affects the prediction of transients, whereas the friction and combustion deterioration can have quite dramatic results but need further experimental validation. © IMechE 2006.	en
heal.publisher	PROFESSIONAL ENGINEERING PUBLISHING LTD	en
heal.journalName	Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering	en
dc.identifier.doi	10.1243/095440705X69641	en
dc.identifier.isi	ISI:000234903900008	en
dc.identifier.volume	220	en
dc.identifier.issue	1	en
dc.identifier.spage	89	en
dc.identifier.epage	101	en