Accession Number : ADA190752

Title :   Advanced B and Al Iota Combustion Kinetics over Wide Temperature Ranges.

Descriptive Note : Annual rept. 1 Dec 86-31 Nov 87,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY NY

Personal Author(s) : Fontijn, Arthur

PDF Url : ADA190752

Report Date : 17 Dec 1987

Pagination or Media Count : 13

Abstract : Current ability to improve the combustion efficiency of B and Al solid propellants and slurries is hampered by a lack of understanding and knowledge of the kinetics of the individual reactions involved and the ways and manner by which temperature affects the rate coefficients and product channels. While the simple Arrhenius-type equation k(T) = AT(to the 1/2 power) exp(-E(A)/RT) has over limited temperature ranges been of great value, when applied to wide temperature ranges it is often not obeyed. Particularly for exothermic and slightly endothermic reactions, order of magnitude errors can be made by extrapolations based on the Arrhenius equation. It is the goal of this program to provide an insight in the kinetic behavior of B and Al radical oxidation reactions as influenced by temperature. To this end measurements are made in high-temperature fast-flow reactors (HTFFR). These unique tools provide measurements on isolated elementary reactions in a heat bath.

Descriptors :   *COMBUSTION, ARRHENIUS EQUATION, BATHS, CHANNELS, COEFFICIENTS, EFFICIENCY, ENDOTHERMIC REACTIONS, ERRORS, EXTRAPOLATION, FAST REACTORS, HEAT, HIGH TEMPERATURE, ISOLATION, REACTION KINETICS, MEASUREMENT, OXIDATION REDUCTION REACTIONS, RANGE(EXTREMES), RATES, SOLID PROPELLANTS, TEMPERATURE, SOLID ROCKET PROPELLANTS, ALUMINIZED PROPELLANTS, BORON COMPOUNDS, CHLORIDES, ALUMINUM COMPOUNDS

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE