Numerical modeling for complex air supply systems in coal mines

Introduction. The article studies a new approach to the functioning of technological processes of air supply in coal mines, consisting of many interacting components. Based on the proposed approach, a multimedia contact method was developed, which was used to analyze a certain type of technological processes. Methodology and research methods. Automated control systems based on numerical models were used in the research conducted by the authors. The article presents the research results for the development of a multimedia contact method. Conclusion. During the justification of the method, it was shown that the resulting set of contacts corresponds to the desired IR matrix. Since, in the proposed method, only a limited set of MC is adjusted at each step, in the early developed methods, at U0 = 77,800, it was necessary to adjust an average of 2–3 fictitious MC each step, the total cost of machine time actually becomes proportional to U0. 2. Research results and discussion. The created method was called the MK method, its very high efficiency was revealed. The calculation time of adaptation of the mathematical model at U0 = 77,800, m = 8 was on average 0.02 minutes, implemented on the Tesla P40 graphic processor. The use of P40 allowed not only to speed up the learning process, but also to ensure high accuracy of the models due to the ability to work with large volumes of data in real time. This was especially important for solving complex problems of forecasting and analysis in the field of optimal air supply control in the coal industry. Conclusions. 1. It has been established that in the modern mining industry, air distribution issues are critically important for the efficient and safe management of air supply processes. It has been determined that the air supply process is a complex system of interrelated actions and processes that begins with the analysis and evaluation of initial data and ends with the achievement of the target result. It has been shown that efficient and safe management of the air supply process plays a key role in ensuring the efficient supply of air to mines and the safety of air distribution processes. 2. It has been revealed that air distribution processes include many interacting components that are analyzed and comprehensively assessed for the further development of multimedia control methods. Understanding the relationships between the various components of this process allows not only to optimize existing methods, but also to develop new approaches to studying the functioning and optimal management of air supply processes in coal mines. 3. The research results can be used to study certain types of technological processes and optimize the control of technological processes of air supply in coal mines.