A Chemical Kinetics Model for the Opposed Flow Diffusion Flame,

Abstract

A theoretical analysis is developed of the reaction kinetics limitations leading to the extinction of a counterflow diffusion flame. With increasing mass flux of reactants into the diffusion flame a maximum in the consumption rate of fuel and oxidizer in the reaction zone is encountered. The analysis shows that experimental measurements of the extinction conditions ('apparent flame strengths') are amenable to evaluation of overall kinetic parameters such as the activation energy, the preexponential Arrhenius term, and the order of reaction. The theoretical model is applied to the propane-oxygen-nitrogen system and an activation energy of 21.9 kcal/mole is derived from published experimental flame extinction data. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 15, 1972
Accession Number
AD0751053

Entities

People

  • C. M. Ablow
  • H. Wise

Organizations

  • SRI International

Tags

DTIC Thesaurus Topics

  • Chemical Kinetics
  • Diffusion
  • Dynamics
  • Energy
  • Extinction
  • Heat Of Activation
  • Kinetics
  • Measurement
  • Nitrogen
  • Physics
  • Rate Of Consumption
  • Test And Evaluation

Readers

  • Combustion science or combustion engineering.