Evaluation of the effect of engine, load and turbocharger parameters on transient emissions of diesel engine

Rakopoulos, CD; Dimaratos, AM; Giakoumis, EG; Rakopoulos, DC

dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Dimaratos, AM	en
dc.contributor.author	Giakoumis, EG	en
dc.contributor.author	Rakopoulos, DC	en
dc.date.accessioned	2014-03-01T01:30:26Z
dc.date.available	2014-03-01T01:30:26Z
dc.date.issued	2009	en
dc.identifier.issn	0196-8904	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19578
dc.subject	Turbocharged diesel engine	en
dc.subject	Transient operation	en
dc.subject	NO concentration	en
dc.subject	Soot density	en
dc.subject	Parametric study	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Nuclear	en
dc.subject.other	COMBUSTION	en
dc.subject.other	PREDICTION	en
dc.subject.other	OPERATION	en
dc.subject.other	EXHAUST	en
dc.subject.other	MODEL	en
dc.title	Evaluation of the effect of engine, load and turbocharger parameters on transient emissions of diesel engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.enconman.2009.05.022	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.enconman.2009.05.022	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The vital issue of exhaust emissions during transient operation of diesel engines has been studied so far mainly on an experimental rather than simulation basis, owing to the very high computational times required for the analysis of each transient cycle. The study of transient emissions, however, is extremely important to manufacturers, since newly produced engines must meet the stringent regulations concerning exhaust emissions levels. In the present work, a comprehensive two-zone transient diesel combustion model is used for a preliminary evaluation of the effect of various parameters on nitric oxide (NO) and soot emissions during transient operation after load changes. The parameters are divided into three categories according to the specific sub-system examined, i.e. engine, load and turbocharger. Demonstrative diagrams are provided for the development of NO and soot emissions during the transient event, which depict the effect of each parameter considered. Moreover, the peculiarities of each case are discussed mainly in relation to turbocharger lag effects. For the current engine-load configuration, it is found that exhaust valve opening timing and cylinder wall insulation affect considerably NO and soot emissions. Additionally, load characteristics as well as turbocharger (T/C) mass moment of inertia play an important role on the development of transient NO and soot emissions. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY CONVERSION AND MANAGEMENT	en
dc.identifier.doi	10.1016/j.enconman.2009.05.022	en
dc.identifier.isi	ISI:000268992500031	en
dc.identifier.volume	50	en
dc.identifier.issue	9	en
dc.identifier.spage	2381	en
dc.identifier.epage	2393	en