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

Stenlåås, Ola LU ; Gogan, Adina LU ; Egnell, Rolf LU ; Mauss, Fabian LU and Sundén, Bengt LU (2002) SAE Powertrain & Fluid Systems Conference & Exhibition, 2002 In SAE Paper 2002-01-2699
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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in
SAE Paper 2002-01-2699
conference name
SAE Powertrain & Fluid Systems Conference & Exhibition, 2002
language
English
LU publication?
yes
id
e3531e38-0d48-4891-85e3-86a2513855a3 (old id 593410)
alternative location
http://www.sae.org/technical/papers/2002-01-2699
date added to LUP
2008-02-19 12:13:10
date last changed
2016-04-16 11:05:51
@misc{e3531e38-0d48-4891-85e3-86a2513855a3,
  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 Gogan, Adina and Egnell, Rolf and Mauss, Fabian and Sundén, Bengt},
  language     = {eng},
  series       = {SAE Paper 2002-01-2699},
  title        = {The influence of NO on the occurence of autoignition in the end-gas of SI-engines},
  year         = {2002},
}