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Natural gas is a mixture of gases: methane hydrocarbons, water vapor, etc. Gas is supplied to the UGSS RF from various sources with different component composition. The composition determines the calorific value of the gas. The ability to control gas flows (composition and calorific value) helps to substantiate the economic efficiency of urgent problems, for example, the choice of the location of gas processing complexes. The paper deals with two-component gas flows. A method for finding an estimate of the distribution of calorie content based on the use of the maximum likelihood method and optimization methods is proposed. The technique allows one to take into account the non-equilibrium and irreversibility of mixing processes.

New chapter of hydraulic circuit theory – flow distribution of multicomponent fluids