Experimental study of transient nitric oxide, smoke, and combustion noise emissions during acceleration of an automotive turbocharged diesel engine

Rakopoulos, CD; Dimaratos, AM; Giakoumis, EG

dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Dimaratos, AM	en
dc.contributor.author	Giakoumis, EG	en
dc.date.accessioned	2014-03-01T02:04:29Z
dc.date.available	2014-03-01T02:04:29Z
dc.date.issued	2011	en
dc.identifier.issn	0954-4070	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29442
dc.subject	transient emissions	en
dc.subject	nitric oxide	en
dc.subject	smoke	en
dc.subject	combustion noise	en
dc.subject	acceleration	en
dc.subject	automotive diesel engine	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	HEAT-TRANSFER	en
dc.subject.other	OPERATION	en
dc.subject.other	EXHAUST	en
dc.subject.other	PREDICTION	en
dc.title	Experimental study of transient nitric oxide, smoke, and combustion noise emissions during acceleration of an automotive turbocharged diesel engine	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The control of transient emissions from turbocharged diesel engines is an important objective for automotive manufacturers, since newly produced engines must meet the stringent criteria concerning exhaust emissions levels as dictated by the legislated Transient Cycles Certification. In the current study, experimental tests are conducted on an automotive, turbocharged diesel engine in order to investigate the formation mechanism of nitric oxide, smoke, and combustion noise emissions under various acceleration schedules experienced during daily driving conditions. To this aim, a fully instrumented test bed was set up in order to capture the development of key engine and turbocharger variables during the transient events. Analytical diagrams are provided to explain the behaviour of emissions development in conjunction with turbocharger and governor/fuel pump response. Turbocharger lag was found to be the main cause for the emission spikes during all test cases examined, with the engine calibration playing a vital role. The analysis was extended with a quasi-steady approximation of transient emissions using steady-state maps, in order to highlight the effect of dynamic engine operation on pollutants and combustion noise emissions.	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.isi	ISI:000286624600010	en
dc.identifier.volume	225	en
dc.identifier.issue	D2	en
dc.identifier.spage	260	en
dc.identifier.epage	279	en