OPTIMAL DISTRIBUTION OF GAS PRESSURE DIFFERENCES TO IMPROVE EFFICIENCY OF GAS SUPPLY SYSTEM

What is it about?

According to preliminary calculations, the optimal distribution of the calculated pressure drop between the sections of the gas distribution network and gas consumption, depending on the nature of the planning and development of the settlement, allows to reduce the metal and material consumption of networks to 10-15% while reducing their cost to 4-5% and is a progressive measure. At present, when carrying out hydraulic calculations of gas distribution networks, they do not purposefully distribute the calculated pressure drop. The diameter of a gas pipeline is usually selected according to the estimated gas flow rate and specific pressure loss per unit length of sections of the gas distribution network. Then check the condition of compliance and not exceeding the obtained pressure drop with the standard value established by SP 42-101-2003. If this condition is not met, some adjustment of the diameters is carried out for design reasons. The purpose of this study is to carry out additional studies to substantiate the calculated pressure drop in the gas distribution system. Materials and methods include a methodology for assessing the effectiveness of the distribution of pressure drops in the gas distribution network. A large number of scientific publications are devoted to the issue of the optimal functioning of gas distribution systems, however, the solutions obtained by the authors and the recommendations developed on their basis are fragmentary, often contradictory, since they do not take into account the entire completeness and diversity of the interaction of system-forming factors. The studies carried out have shown that the obtained values of the calculated pressure losses when using household gas-using installations with a reduced nominal pressure are much less than those established by regulatory documents. As follows from the analysis of the results obtained, the nature of the development of the settlement, the population density in the gas-supplied territory, as well as the technical characteristics of the gas-supplied buildings, have a decisive influence on the unit costs of gas supply systems.

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Photo by KWON JUNHO on Unsplash

Photo by KWON JUNHO on Unsplash