Chemical kinetics of the high pressure oxidation of n-butane and its relation to engine knock

A chemical kinetic oxidation mechanism for n-butane is employed to study hydrocarbon autoignition related to engine knock. A low temperature submechanism has been added to a previously developed high temperature mechanism in order to examine the importance of low temperature reaction paths in autoig...

Full description

Saved in:
Bibliographic Details
Published in:Combustion and flame 1986, Vol.63 (1), p.113-133
Main Authors: Pitz, William J., Westbrook, Charles K.
Format: Article
Language:English
Subjects:
Applied sciences
chemical variables control
combustion
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
internal combustion engines
oxidation
Theoretical studies. Data and constants. Metering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A chemical kinetic oxidation mechanism for n-butane is employed to study hydrocarbon autoignition related to engine knock. A low temperature submechanism has been added to a previously developed high temperature mechanism in order to examine the importance of low temperature reaction paths in autoignition. Numerical calculations follow reactions taking place in a sample of end gas and are used to identify the controlling chemical reactions that can lead to autoignition. Reactions that involve the production and consumption of HO 2 and H 2O 2 were found to play a crucial role in high pressure autoignition. A possible role of selected antiknock additives was investigated numerically, with calculations showing that the removal of HO 2 and H 2O 2 by these additives would provide a strong inhibiting effect on the autoignition process.
ISSN:0010-2180
1556-2921
DOI:10.1016/0010-2180(86)90115-X