PREREQUISITES SIMULATION OF ENERGY EFFICIENCY PARAMETERS OF GAS TRANSPORT ENTERPRISES

Abstract

Today, for underground storage of natural gas and ensuring uninterrupted supply of natural gas to consumers, gas transportation companies use gas pumping equipment with special operational properties and technical characteristics, which works by burning natural gas and occupies 85-90% of energy costs in the company's cost structure. When measuring the parameters of the technological processes of natural gas injection and extraction by means of compression by gas pumping units, it is necessary to use instruments and measuring equipment with a certain accuracy and to process the received data in order to calculate the energy efficiency indicators of the gas transportation enterprise. Measurements by means of measuring equipment are basic for evaluating the actual local and system indicators of energy efficiency of underground gas storages. The urgency of the problem of improving the system of indicators of energy efficiency of natural gas storage is directly related to the improvement of methods of normalizing energy consumption, the results of the analysis of actual consumption of natural gas, with the identification and subsequent elimination of the causes of overconsumption of natural gas relative to normative indicators. Standardization of natural gas consumption is the establishment of the planned objectively necessary amount of their consumption per unit of produced products, performed works or provision of services of the established quality. The selection of the indicator of the work performed by the structural units in the technological processes of gas storage is of great importance in the normalization of natural gas consumption and the selection of energy efficiency indicators. Analysis of compliance with energy efficiency indicators is carried out by comparing the actual specific consumption of natural gas with normative or other energy efficiency indicators that correspond to a given technological process or its component. In the practice of rationing and analysis of natural gas consumption, various indicators of the volume of production are used: - for compressor shops - adiabatic compression work; - for underground storage facilities – volume of gas during injection and withdrawal. Adiabatic compression work is a fully accepted indicator for measuring the volume of production at the level of compressor shops, since it generally correctly reflects the physical essence of the natural gas compression process and does not reflect the volume of LPG production, but only a share of the volume of required energy consumption. Energy costs for natural gas compression are necessary for the process of gas injection and withdrawal, which is considered as an indicator of the volume of production in the gas storage process.