A digital simulation of the exhaust nitric oxide and soot formation histories in the combustion chambers of a swirl chamber diesel engine

Kouremenos, DA; Rakopoulos, CD; Hountalas, D; Kotsiopoulos, P

dc.contributor.author	Kouremenos, DA	en
dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Hountalas, D	en
dc.contributor.author	Kotsiopoulos, P	en
dc.date.accessioned	2014-03-01T01:07:45Z
dc.date.available	2014-03-01T01:07:45Z
dc.date.issued	1990	en
dc.identifier.issn	0015-7899	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10146
dc.subject	Chemical Equilibrium	en
dc.subject	Computer Program	en
dc.subject	Computer Simulation	en
dc.subject	Diesel Engine	en
dc.subject	Digital Simulation	en
dc.subject	Exhaust Emissions	en
dc.subject	Fuel Consumption	en
dc.subject	Heat Exchanger	en
dc.subject	Nitric Oxide	en
dc.subject	Operant Conditioning	en
dc.subject	Rate Equation	en
dc.subject	Thermodynamics	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Computer Simulation	en
dc.subject.other	Internal Combustion Engines - Exhaust Gases	en
dc.subject.other	Nitrogen Oxides	en
dc.subject.other	Soot	en
dc.subject.other	Thermodynamics - Analysis	en
dc.subject.other	Nitric Oxide	en
dc.subject.other	Swirl Prechamber	en
dc.subject.other	Two-Zone Combustion Models	en
dc.subject.other	Diesel Engines	en
dc.title	A digital simulation of the exhaust nitric oxide and soot formation histories in the combustion chambers of a swirl chamber diesel engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF02561047	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF02561047	en
heal.language	English	en
heal.publicationDate	1990	en
heal.abstract	This work presents a computer simulation of the exhaust nitric oxide and soot emission histories from a four stroke, naturally aspirated, Diesel engine with a swirl prechamber (divided chamber). The simulation is based on a thermodynamic analysis, which was validated successfully concerning the performance of the engine (load, fuel consumption, maximum pressures, etc). The analysis includes the calculation of the heat exchange between gas and walls in both the main chamber and (swirl) prechamber, after computing the relevant characteristic velocities and lengths, while combustion in both the main chamber and the swirl prechamber is attacked by proposing a two-zone combustion model. The concentration of the constituents in the exhaust gases is calculated by incorporating a complete chemical equilibrium scheme for the C-H-O system of the eleven species considered, together with chemical rate equations for the calculation of nitric oxide (NO). A model for the evaluation of soot formation and oxidation rates is also included, in order to compute the net soot concentration. The contribution of each chamber to the formation of NO and soot is given by presenting time (crank angle) diagrams of the net NO and soot formation inside each chamber (histories of formation). To validate the analysis, an extensive experimental investigation is undertaken at the authors' laboratory on a Diesel engine of this type by evaluating its exhaust emission characteristics in a wide range of operating conditions. The experimental results are found to be in good agreement with the theoretical results obtained from the computer program implementing the analysis, while the detailed NO and soot net formation histories provide insight into the mechanisms involved. © 1990 VDI Verlag GmbH.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Forschung im Ingenieurwesen	en
dc.identifier.doi	10.1007/BF02561047	en
dc.identifier.isi	ISI:A1990CK78800004	en
dc.identifier.volume	56	en
dc.identifier.issue	1	en
dc.identifier.spage	22	en
dc.identifier.epage	32	en