МЕТОД ПОШУКУ РОЗВ’ЯЗАННЯ СКЛАДНОЇ ЗАДАЧІ ІНТЕРПРЕТАЦІЇ ДЛЯ РОЗВ'ЯЗАННЯ ЗВОРОТНОЇ ЗАДАЧІ З ВИЗНАЧЕННЯ СКЛАДУ ПАЛЬНОГО

The topic of the article is to develop a method of finding a solution to a complex interpretation problem to solve the inverse problem of determining the composition of the fuel. The determination of the qualitative and quantitative composition of gas is distinguished by chemical, physico-chemical and physical methods. Known advantages of physical-chemical and physical methods over chemical, namely, speed of execution, the possibility of automation of analysis, made possible their widespread dissemination. Currently, the most widely used methods are gas chromatography. The main drawbacks of these instruments are the consistent measurement of the gas components, the long analysis time. The purpose of the research is to develop a method of finding a solution to a complex interpretation problem to solve the inverse problem of determining the composition of the fuel. The scientific and practical significance of the work lies in the definition of the general type of problem, as inversely incorrectly assigned and distinguished its narrower class - a difficult task of interpretation. Methods for solving the problem of controlled combustion of gaseous fuels of variable composition and finding a solution to the inverse problem of interpretation based on the use of library data have been developed. Modeling of technological measurements with accepted errors is carried out. The research methodology is based on the solution method - NewtonRafson method, square matrix conditionality, and library method for solving the inverse problem. The modeling of the proposed methods in determining the composition of the fuel allowed for the considered substances (methane, propane, ethyl alcohol) with the measurement errors made it possible to get decisions within the model. The practical value of the study is that it is shown as the introduced errors increase the range of possible solutions. The influence of 2019 – № 39 Суднові енергетичні установки 31 measurement accuracy of technological parameters on the uncertainty of the fuel composition determination is determined.