Abstract
This paper proposes a method for solving the problem on determining the unknown composition of a gaseous hydrocarbon fuel during its combustion in real time. The problem had been defined as the inverse, ill-posed problem. A technique for measuring technological parameters makes it possible to specify it as a complex interpretation problem.To solve it, a method has been selected (selection), which is the most universal one. To implement it, a method has been constructed to compile a library in the form of a working three-dimensional array. The source data for each solution to a direct problem in the generated array are represented in the form of a single number. To this end, a position principle for recording decimal numbers has been applied.Compiling a working array employed a method for comparing the excess factor of an oxidizer and the ratio of volumetric consumption of an oxidizer and fuel. This has made it possible to apply the results from solving a direct problem on determining the temperature of combustion products in order to solve the inverse problem on determining this composition based on the measured temperature.A method has been devised for finding a solution among the elements of the working array based on the results from technological measurements of temperature of the combustion products of the burnt fuel and the ratio of the volumetric consumption of an oxidizer and fuel.The work shows the absence of errors introduced to the solution by an algorithm of the proposed method. When modeling precise technological measurements, errors are due only to the sampling of source data while solving a direct problem. The influence of measuring the technological parameters on accuracy in determining the composition of fuel has been defined. It does not exceed the magnitude that is permissible for engineering calculations.The proposed calculation method could make it possible to use under a managed mode, in energy and in the chemical industry, a large amount of hydrocarbon fuel gases that are currently considered waste. Their energy equivalent is comparable with the energy needs by the African continent.
Highlights
The scientific, industrial, and business communities realize the urgent need to improve the energy efficiency of existing productions
Paper [12] proposed a method for determining such a formula when burning the mixture used. Underlying it is the measurement of temperature of combustion products (CP) and the flow rate of an unknown gaseous fuel and air
We have considered an example of burning these substances in oxygen
Summary
The scientific, industrial, and business communities realize the urgent need to improve the energy efficiency of existing productions This can reduce the share of energy resources in the cost of manufactured products and is one of the ways to improve their competitiveness. The terms of implementation of such equipment are rather long Another way to bring down the cost of energy resources in the product cost is to consider a possibility to reduce the energy intensity of production. One example is the gases produced in the coking, refinery production, blast furnace gases, products from mine degasification, associated gases from oil production, pyrolysis gases, gases from recycling, etc To use such energy resources in production, there should be a sufficient amount of them. It is a relevant task to determine the composition of a gas mixture in real time
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