Estimation of possibilities of calculations based on simplified models of the leak location in gas pipelines

For gas transportation through pipes in normal and emergency modes, a comparison of calculations based on mathematical models various degrees generality is presented. A model non-isothermal steady flow mixture gases its simplified versions are studied. options, simple analytical dependencies were obtained for calculating characteristics the location an leak. Examples pressure distributions, temperature leakage coordinates pipelines medium pressures according to general provided. The examples cover parameter change area practical interest. conditions admissibility using leak intensity different locations determined. Keywords: pipelines, adequacy model, simplifications, calculation place leakage, compressibility factor.