Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications (Contributo in atti di convegno) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Costa M., Sorge U., Allocca L. (2009)
  Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications
  in 3rd Int. Conference on Sustainable Energy & Environmental Protection SEEP2009, Dublin (Ireland)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Costa M., Sorge U., Allocca L. (literal)

Pagina inizio

• 307 (literal)

Pagina fine

• 312 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• Una versione estesa del lavoro è stata pubblicata sullo Specia Issue Sustainable Energy and Environmental Protection \"SEEP2009\" della rivista internazionale Simulation Modelling Practice and Theory Volume 19, Issue 4, April 2011, Pages 1212-1226 http://dx.doi.org/10.1016/j.simpat.2010.07.006 http://www.sciencedirect.com/science/article/pii/S1569190X10001590 L'indicizzazione delle banche dati è riferita all'articolo pubblicato su rivista (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

• Proceedings 3rd Conference on Sustainable Energy & Environmental Protection - SEEP 2009, Dublin (Ireland) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• pp. 307-312 (ISBN 978-0-9555781-2-0) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• Guidelines for managing the mixture formation process in a high performance four stroke Gasoline Direct Injection (GDI) engine for two-wheels applications are discussed, as derived from a multidimensional modelling of the in-cylinder processes. Gasoline adduction from a multi-hole injector is considered as starting at various crank angles during the intake stroke, at two injection pressures, and as resulting from three different injector positions. Injection flow rates and cone angles are derived from preliminary experimental measurements carried out on sprays entering a confined vessel at controlled conditions. It is shown that, under globally lean conditions, the choice of the inclination angle of the injector is fundamental to achieve the desired charge stratification around the spark plug. For low values of this geometrical parameter, due also to the pent-roof shape of the cylinder head, the gasoline remains confined in the vicinity of the walls or quickly reaches the surface of the piston, where it stays for a long time, especially as a consequence of the motion of the piston itself. The analysis conducted at various Start Of Injections (SOIs) shows the need of exploiting as much as possible the turbulent motion of the entering air, before the intake valves start their closing motion. The effects of the charge stratification on the pressure cycle, the rate of heat release and the formation of main pollutants are highlighted. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto Motori, CNR, Napoli, Italy (literal)

Titolo

• Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 978-0-9555781-2-0 (literal)

Abstract

• Guidelines for managing the mixture formation process in a high-performance four-stroke Gasoline Direct Injection (GDI) engine for two-wheel applications are discussed, as derived from a multidimensional modelling of the in-cylinder processes. Gasoline adduction from a multi-hole injector is simulated by resorting to a properly developed model that accounts for the dependence of the initial droplets size distribution upon injection pressure. The model portability is preliminary demonstrated by comparison with experimental measurements carried out on sprays entering a confined vessel at controlled conditions. The simulation of different engine operating conditions highlights the capability to work under the so-called \"mixed mode\" boosting with spray guided mixture formation. (literal)

Prodotto di

• Strategie per l’ottimizzazione della combustione per motori a basse emissioni (ET.P02.004.001) (Modulo)
• Istituto motori (IM) (Istituto)

Autore CNR

• MICHELA COSTA (Unità di personale interno)
• LUIGI ALLOCCA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto motori (IM) (Istituto)
• Strategie per l’ottimizzazione della combustione per motori a basse emissioni (ET.P02.004.001) (Modulo)

Autore CNR di

• LUIGI ALLOCCA (Unità di personale interno)
• MICHELA COSTA (Unità di personale interno)
• http://www.cnr.it/ontology/cnr/individuo/unitaDiPersonaleEsterno/ID2905

Insieme di parole chiave di

• Parole chiave di "Numerical study of mixture formation process in a four stroke GDI engine for two-wheels applications" (Insieme di parole chiave)