Abstract
The paper presents a one-dimensional transient mathematical model of compressible non-isothermal multi- component fluid mixture flow in a pipe. The set of the mass, momentum and enthalpy conservation equations for gas phase is solved in the model. Thermo-physical properties of multi-component gas mixture are calculated by solving the Equation of State (EOS) model. The Soave-Redlich-Kwong (SRK-EOS) model is chosen. Gas mixture viscosity is calculated on the basis of the Lee-Gonzales- Eakin (LGE) correlation. Numerical analysis of rapi d gas decompression process in rich and base natural gase s is made on the basis of the proposed mathematical model. The model is successfully validated on the experimental data (1). The propose d mathematical model shows a very good agreement with the experimental data (1) in a wide range of pressure values and predicts the de compression in rich and base gas mixtures much better than analyti cal and mathematical models, which are available from the open source literature.
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