Tertyshnyi I. Improvement in design of modular packaged gas turbine driven turbo-compressor units for compressor stations of gas pipeline network.

The dissertation is devoted to the improvement in scientific and methodological foundations for system analysis of the efficiency of gas modular packaged turbocompressor unit (TCU) operation and development of methodological approaches to evaluate the efficiency of the unit energotechnological scheme (ETS) using exergy analysis, determine approaches to selection of joint operating modes of a gas turbine drive (GTD) and a centrifugal compressor (CC) to achieve optimum operation of the unit. On the basis of the analysis of the unit ETS, verified analytical dependencies to determine exergy efficiencies of the main power systems as indicators of their thermodynamic perfection have been obtained. Identified geometry parameters of impellers the rotor bundle of single-casing compressors, which influence for system curve of TCU and provides the most preferred coincidence of operation modes of GTD and CC in TCU for linear compressor stations. Justified method to selecting the most preferred energotechnological system of the boost TKA based on the functional-exergy approach to evaluate the efficiency of unit operation and life cycle cost data. The obtained results allowed recommendations to improve the design process of gas-turbine units.