A mathematical model of the combustion process of liquid оrganic energy products
Simulation of technological processes involving the combustion of liquid energy products with an attempt to accurately describe their hydrodynamics is known to greatly complicate the model. In this article, we discuss the problem of effective use of organic energy products. A mathematical model describing the combustion process of liquid fuel is presented. The modelling is carried out using a number of justified simplifying assumptions, which permit the original model to be reduced to simpler dependencies between the parameters of the process. The constructed model includes a stationary model of the combustion process and that of liquid fuel burning in a furnace. Key factors affecting the character of the process are investigated. A formula for calculating the oxygen concentration at the reaction surface is obtained. The combustion rate under consideration was assumed to be determined not only by the oxygen concentration in the diffusion layer, but also by the total surface of unreacted particles, calculated taking into account the density of the particle distribution. The material balance of oxygen is drawn, which includes two equations, i.e. for the diffusion and dense parts. The results of the calculations are presented in the form of diagrams. An engineering computational model has been developed for calculating the energy characteristics of the combustion of liquid hydrocarbon fuel in an industrial furnace. The resulting combustion model can be used for predicting the extent and consequences of emergency situations.