- Author
-
Saso, Y.
- Title
- Studies on Flame Inhibition Mechanisms of Fire Suppressants With Detailed Chemical Kinetics.
- Coporate
- University of Tokyo, Japan
- Report
-
THESIS,
January 2001,
305 p.
- Keywords
-
flame inhibition
|
reaction kinetics
|
burners
|
counterflow flames
|
diffusion flames
|
liquid fuels
|
laminar burning velocity
|
mixtures
|
synergism
|
combustion
|
methanol
- Abstract
- The inhibition mechanisms of fire suppressants in laminar premixed and diffusion flames were studied experimentally and theoretically. Experimentally, laminar burning velocities of suppressant-containing mixtures were determined with a premixed counterflow twin flame technique, and critical conditions of extinction were measured for co-flow and counterflow diffusion flames stabilized on a liquid fuel pool. Theoretically, simulation was performed with detailed chemical kinetics to predict the laminar burning velocities and the extinction conditions of counterflow flames. A numerical model describing the vaporization of the condensed fuel as well as oxidation of the fuel and chemical suppressant in the counterflow diffusion flame was developed in conjunction with a flame-controlling continuation method to simulate flame responses to the suppressant doping and predict the critical conditions for extinction. Through computational experiments, a unified theory on the role of inhibitor in global gas-phase combustion kinetics was proposed.