Halogenated Fire Suppressants by Richard G. Gann (Eds.)

By Richard G. Gann (Eds.)

content material: an summary of Halon 1301 platforms / Charles L. Ford --
The relevance of primary stories of flame inhibition to the improvement of criteria for the halogenated extinguishing agent structures / Myron J. Miller --
CF₃Br suppression of turbulent, class-B gasoline fires / Norman J. Alvares --
Mechanistic stories of halogenated flame retardants : the antimony-halogen approach / John W. Hastie and C.L. McBee --
impact of CF₃Br on counterflow combustion of liquid gas with diluted oxygen / okay. Seshadri and F.A. Williams --
Halomethane and nitrogen quenching of hydrogen and hydrocarbon diffusion and premixed flames / R.F. Kubin, R.H. Knipe, and Alvin S. Gordon --
The impact of halogens at the blowout features of an antagonistic jet stabilized flame / R.W. Schefer, N.J. Brown, and R.F. Sawyer --
The impact of CF₃Br on a CO-H₂-O₂-Ar diffusion flame / L.W. Hunter, C. Grunfelder, and R.M. Fristrom --
The influence of CF₃Br on radical focus profiles in methane flames / Joan C. Biordi, Charles P. Lazzara, and John F. Papp --
Inhibition of the hydrogen-oxygen response via CF₃Br and CF₂BrCF₂Br / Gordon B. Skinner --
preliminary reactions in flame inhibition through halogenated hydrocarbons / Richard G. Gann --
Halogen kinetics pertinent to flame inhibition : a overview / N.J. Brown --
Halogenated hearth extinguishants : flame suppression through a actual mechanism? / Eric R. Larsen --
The position of ions and electrons in flame inhibition via halogenated hydrocarbons : perspectives / Edward T. McHale and Alexander Mandl --
Theoretical research of inhibition phenomena in halogenated flames / Serge Galant and J.P. Appleton.

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For this reason, a dynamic procedure i s preferred because of its conservative result. 8. Concentrations of halogenated agents to inert a given fuel/air mixture are significantly greater than to extinguish diffusion flames of that fuel. 9. Inerting requirements for halogenated agents vary with fuel type and temperature and conditions (ignition energy, container geometry, and amount of flame propagation permitted) of the system. These variables appear to operate as follows: a. The effect of fuel type i s similar to that for extinguishment of diffusion flames.

Determination of Design Criteria and Performance Testing of Prototype Fire Extinguishing Systems Using 'Freon' FE 1301", Ser. No. 1, Factory Mutual Research Corporation, Norwood, Massachusetts, October 1968. , "Halon 1211 Systems: Threshold Concentration for Extinguishment of Various Fuels", PN-67-39-2, ICI Mond Division, Winnington Laboratory, February 3, 1970. , "Final Report on the Halon 1301 Threshold Fire Extinguishing Program", Wickham Associates, Marinette, Wisconsin, September 10, 1972.

Four test variables were explored: effect of agent, effect of fuel, effect of temperature, and effect of pressure. Data from these tests are shown i n Tables XV, XVI, XVII, and XVIII, respectively. d. 4 1. 4 Table XV shows the relative effectiveness of various halogenated extinguishants on suppressing n-heptane. Frcm the observed flammability peak concentrations, the weight effectiveness of each agent was determined by multiplying by the molecular weight and expressing the result as a percent of the requirement for Halon 1001, which was taken to be 100.

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