%0 Generic
%A Battin-Leclerc, Frederique
%A Buda, Frederic
%A Glaude, Pierre-Alexandre
%A Griffiths, John
%A Hughes, Kevin
%A Porter, Richard
%A Tomlin, Alison
%C Louvain la Neuve, Belgium
%D 2005
%F discovery:10183572
%I European Combustion Meeting (ECM)
%T A Numerical Study of the Kinetic Origins of Two-Stage Autoignition and the Dependence of Autoignition Temperature on Reactant Pressure in Lean Alkane-Air Mixtures
%U https://discovery.ucl.ac.uk/id/eprint/10183572/
%X In this work we investigate by numerical methods, the autoignition temperature of lean mixtures of n-butane in air,  and show how it varies within a range of temperatures and compositions. We show that relatively small increases of  pressure above atmospheric, of even rather lean mixtures, can autoignite at 550 K. The primary results are evaluated  with respect to published experimental studies. The kinetic foundation is then analysed by formal numerical  methods to trace the origins of the dramatic shifts in autoignition temperatures as conditions are changed. The most  important reactions leading to hydrogen peroxide formation are identified using rate of production analysis, and the  greatest heat releasing reactions are determined in the transition from cool flame to ignition.
%Z This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.