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ISSN Online: 2379-1748

8th Thermal and Fluids Engineering Conference (TFEC)
March, 26-29, 2023, College Park, MD, USA

ADVANCED CHEMICAL KINETICS OF THERMITE REACTIONS

Get access (open in a dialog) pages 231-240
DOI: 10.1615/TFEC2023.cbf.046112

Abstract

This paper investigates the effects of Arrhenius parameters on the Fe2O3-2Al thermite system. Assuming a single-step kinetics mechanism, contour plots were generated to investigate the effects of the activation energy and pre-exponential factor on the velocity and thickness of the reaction wave. Higher activation energies and lower pre-exponential factors resulted in slower and thicker reaction waves. Also, the effect of activation energy on the burning velocity is enhanced at higher levels of the pre-exponential factor whereas the effect of pre-exponential factor is increased at lower levels of the activation energy. The opposite trend was observed on the thickness of the reaction wave. Finally, an exponential relationship between thickness and velocity of the reaction wave was identified regardless of the Arrhenius parameters.