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The Influence of Nitric Oxide on the Occurrence of Autoignition in the End Gas of Spark Ignition Engines

Stenlåås, Ola LU ; Egnell, Rolf LU ; Gogan, Adina LU ; Sundén, Bengt LU and Mauss, Fabian LU (2002) In SAE Technical Papers
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Combustion diagnostic Enginee Gas
in
SAE Technical Papers
publisher
Society of Automotive Engineers
external identifiers
  • Scopus:84877565849
language
English
LU publication?
yes
id
a9f2e042-fe40-42fb-a206-1b47b01de795 (old id 773641)
alternative location
http://www.sae.org/technical/papers/2002-01-2699
date added to LUP
2007-12-19 11:09:37
date last changed
2016-11-15 13:22:54
@misc{a9f2e042-fe40-42fb-a206-1b47b01de795,
  abstract     = {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. <br/><br>
<br/><br>
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.},
  author       = {Stenlåås, Ola and Egnell, Rolf and Gogan, Adina and Sundén, Bengt and Mauss, Fabian},
  keyword      = {Combustion diagnostic
Enginee
Gas},
  language     = {eng},
  publisher    = {ARRAY(0xb1312c0)},
  series       = {SAE Technical Papers},
  title        = {The Influence of Nitric Oxide on the Occurrence of Autoignition in the End Gas of Spark Ignition Engines},
  year         = {2002},
}