MATHEMATICAL ASSESSMENT OF RELIABILITY OF WORK OF BOILER PLANTS WITH RESERVE FUEL
This article is devoted to the mathematical evaluation of the reliability and efficient operation of boiler plants (BP) when introducing a backup fuel economy. Due to the growing number of consumers of thermal energy, the load on the main lines increases accordingly, which leads to an increase in the likelihood of emergency situations during gas transportation, and as a result of interruptions in heat supply, which is not allowed for significant facilities. One of the methods to improve the reliability of heat supply to consumers is the introduction of backup fuel. The gas supply scheme of the boiler house with the addition of backup fuel as an additional element from the point of view of mathematics is a logical scheme. At the first stage, structural schemes of the reliability of systems with redundancy were considered, and their key features were noted. The analysis of existing methods for calculating the reliability was made, and the most suitable ones for the scheme of connecting gas pipelines and reserve fuel facilities of the boiler house under consideration were identified. At the second stage, based on statistical data on outages, and existing standards, calculations of the reliability of each method were carried out. The results of the calculations clearly show the reliability of trouble-free operation with the presence of a backup line. In conclusion, it is concluded that the method of backup through recovery is most effective.