The present work is a theoretical study of the combustion of a single droplet of liquid monopropellant in an inert atmosphere taking into consideration the diffusion phenomena and the chemical kinetics of the process.nThis first part of the study contains the integration of the differential equations of the process performed through an approximate analytical method. The validity of this method is checked by comparing its resists with these obtained through a numerical integration of the system.nFormulas are obtained from which the laws of variation of the magnitudes oharaoteristic of the process can be deduced such as combustion velocity, distance of the flame front to the droplet maximum temperature, etc. as a function of the droplet radius and of the different parameters, i.e; activation energy and temperature at the infinite.nHowever, the study of these functions, the analysis of the results obtained and a comparison with experimental data will be included in a continuation to this work.
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