Monitoring energy saving processes in production systems based on mathematical statistics

The article is devoted to the urgent problem of organizing and managing resource-saving industrial chemical-technological systems and increasing the competitiveness of products. To increase the efficiency of the implementation of energy-saving technologies, it is necessary to conduct continuous energy monitoring and control, which is currently difficult due to the imperfection of the mechanism for the practical implementation of energy management systems. The purpose of the article is to study the trends in the dynamics of the energy component of the cost of production and the transformation of the structure of energy resources, to assess the maximum rate of electricity losses in chemical-technological systems on the basis of mathematical statistics. To achieve this goal, the article uses scientific and organizational approaches to the study of the energy efficiency of chemical technological systems, among the methods of mathematical modeling, methods of descriptive statistics have been effectively applied, and a method is proposed for assessing energy losses based on the dependence of the range of limit values of energy consumption on the average rate according to the best available technologies. Positive trends in the change in the energy consumption of products of chemical-technological systems in general for all resources have been determined against the background of an increase in electrical energy consumption and a decrease in heat consumption. A fairly significant movement of the structure of fuel and energy resources for certain items was revealed, which is associated with a change in the cost of fuel and electricity, the introduction of new technologies into production, as well as a certain effect from the implementation of energy conservation programs. A positive trend has been established to reduce the amount of energy losses at Russian industrial enterprises while maintaining a relatively high level of technological losses in absolute terms. The necessity of taking into account the absolute value of the energy consumption of products when determining the rate of loss of energy resources at the stage of design or modernization of chemical production is substantiated on the basis of the revealed correlation dependences of the range of limit values of electricity consumption from the average rate of energy consumption. The limiting limits of the norms for the loss of electrical energy are estimated on the example of solution polymerization rubbers with different levels of electrical energy capacity during production. The results of the study are theoretically and practically significant for the development of models and algorithms for intelligent energy systems intended for monitoring the level of consumption and losses of energy resources in chemical-technological systems with subsequent diagnostics of deviations in resource consumption from the specified values.