Accession Number : AD0628144

Title :   THEORETICAL AND EXPERIMENTAL STUDY OF REACTION KINETICS IN FLAMES.

Descriptive Note : Final technical rept.,

Corporate Author : LOUVAIN UNIV (BELGIUM) LAB OF INORGANIC CHEMISTRY

Personal Author(s) : Tiggelen,A. Van

Report Date : OCT 1965

Pagination or Media Count : 16

Abstract : The existence of fundamental flammability limits is discussed. In case of a chain reaction mechanism the latter are predicted theoretically but the experimental are probably different from the theoretical limits. Other considerations are related to the a priori evaluation of dissociation energies. A formula is proposed which is based on two empirical parameters which characterize any kind of radical. An experimental study of lifted turbulent flames is reported; it links the stability of such flames with the characteristic turbulence parameters: intensity and scale. The location of the anchoring place of the flame corresponds to the locus where a stoichiometric composition is attained. Burning velocities, flame temperatures and flame thickness have been measured for methane-oxygen flames, extending from very rich to very poor mixtures at different degrees of dilution with nitrogen. The kinetical parameters which can be derived from these data strongly suggest the following branching reaction: H + O2 yields OH + O. (Author)

Descriptors :   (*FLAMES, REACTION KINETICS), (*REACTION KINETICS, FLAMES), COMBUSTION, FLAMMABILITY, TURBULENCE, BURNING RATE, TEMPERATURE, METHANE, OXYGEN COMPOUNDS

Subject Categories : Physical Chemistry
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE