The influence of NO on the occurence of autoignition in the end-gas of SI-engines

Ola Stenlåås, Adina Gogan, Rolf Egnell, Fabian Mauss, Bengt Sundén

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

Full-cycle simulations of a spark ignition engine running on a primary reference fuel have been performed using a two-zone model. A detailed kinetic mechanism is taken into account in each of the zones, while the propagating flame front is calculated from a Wiebe function. The initial conditions for the unburned gas zone were calculated as a mixture of fresh gas and rest gas. The composition of the burned gas zone at the end of the last engine cycle, including nitric oxide emissions, was taken as rest gas.

The simulations confirm that the occurrence of autoignition in the end gas is sensitive on the amount of nitric oxide in the rest gas of the spark ignition engine. The comparison of autoignition timings calculated for a single-cylinder test engine are getting more accurate if the nitric oxide in the initial gases is taken into account.
Originalspråkengelska
Titel på värdpublikationSAE Paper 2002-01-2699
StatusPublished - 2002
EvenemangSAE Powertrain & Fluid Systems Conference & Exhibition, 2002 - San Diego, USA
Varaktighet: 2002 okt. 212002 okt. 24

Konferens

KonferensSAE Powertrain & Fluid Systems Conference & Exhibition, 2002
Land/TerritoriumUSA
OrtSan Diego
Period2002/10/212002/10/24

Ämnesklassifikation (UKÄ)

  • Energiteknik

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