«Automation and Informatization of the fuel and energy complex»

Modeling of gas transportation processes by pipelines

UDC: 004.942:519.242:519.6:681.5
DOI: 10.33285/2782-604X-2022-11(592)-54-68

Authors:

¹ Gazprom Dobycha Urengoy, Novy Urengoy, Russia

Keywords: gas pumping unit, gas transport processes, mathematical model, system of Navier – Stokes equations, numerical methods, analytical dependencies, compression ratios, gas compression power, polytropic efficiency, gas-dynamic model with "centrifugal supercharger – main pipeline" lumped parameters, finite element method, Runge – Kutta method

Annotation:

A gas compressor unit diagnosing is possible if there is a formal description in good and faulty technical condition. A formal description can be represented by tables, diagrams, logical relations, differential equations. The most demanded methods of mathematical modeling are considered. The article pays attention to the analytical review, advantages and disadvantages of the existing methods for mathematical models development. The stages of mathematical models development of the gas pumping unit are shown. The following analytical dependencies are obtained: compression ratio, gas compression power, polytropic efficiency. A numerical solution of a gas-dynamic model with "centrifugal supercharger – main pipeline" lumped parameters is obtained.

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