The method of process variable clarification for gas distribution in gas supply pipeline networks in the populated localities

Abstract

The analytical calculations have been made, which showed that the current normative forecast methods of gas
distribution in the systems of low and medium pressure gas supply in steel pipes fail to describe the existing gasdynamic
processes properly. The method of result clarification of hydraulic calculations, based on the corrective
coefficients application, was proposed. For all modes of gas flow and the full range of ratios for railways and transit
gas consumption in the areas of gas networks there are offered polynomial mathematical models of the adjustment
coefficients of the calculated gas flow rate and pressure drop, which are characterized by a high degree of
approximation probability. The influence of these models on the design and operating parameters of steel gas pipelines
of gas supply system in the populated localities were studied by the means of computer simulation. The
necessity to change the diameters of certain sections of gas pipelines to prevent the emergency modes of operation
was proved.