A model relating extinction of the opposed-flow diffusion flame to reaction kinetics

✍ Scribed by C.M. Ablow; H. Wise

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 585 KB
• Volume: 22
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(74)90006-6

✦ Synopsis

A theoretical analysis is developed for the extinction of a homogeneous ¢ounterflow diffmdon flame due to limitations lit the reaction kinetics. With inctea~r~ mass flux of reactants into the diffusion flame a maximum ht the cons~ rate of fuel and oxidizer in the reaction zone occurs. The analysis shows that expetlmcmtal measurements of the extinction conditions ("apparent flame strengths") can be used to evaluate quantitatively such kinetic parameters as the overall acti'Jation energy, the preexponential Arrhenius term. and the order of reaction. The theotetital mod~l is applied to the propane-oxygen-nitrogen system, for which an activation energy of 2t ~ 2 k~l/mole is "calcuhtcd on the basis of experimental flame extinction data.