Thermal Characterisation and Kinetic Modelling of Pyrotechnic Flash Composition under Adiabatic Conditions

S. P. Sivapirakasam, M. Surianarayanan* and R. Vijayaraghavan

Abstract: A pyrotechnic flash composition consisting of 53% KNO3, 30% Al and 17% S is subjected to Accelerating Rate Calorimetry (ARC) studies. The onset point for thermal explosion is 191 ºC resulting in the generation of a considerable quantity of gaseous products. The mixture is vulnerable to thermal hazards. There is good agreement between the predicted and experimental self-heat rates determined using adiabatic thermo kinetics.

Keywords: Flash composition, ARC, fireworks, adiabatic thermo kinetics, thermal characterization


Ref: JPyro, Issue 23, 2006, pp61-66
(J23_61)

© Journal of Pyrotechnics and CarnDu Ltd



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