Thermal energy recovery efficiency improvement of gas turbine technology

The research relevance on improving the thermal energy recovery efficiency of gas turbine technology is caused by the need to reduce the fuel and energy consumption when generating the electric energy. The research objective is to define the technically and economically feasible heat recovery ratio of exhaust gases after gas turbine in the heat regenerator. The optimization problem of the heat potential recovery process was solved. The algorithm to calculate the optimal temperature of heating the air supplied to the combustion chamber of the gas turbine unit was developed. Methods of mathematical modelling of heat exchange processes, methods of choosing the rational option in solving the optimization problem, and mathematical methods of solving the optimization problems were used in the paper. The influence analysis of the optimal air temperature required for burning the fuel in the combustion chamber on the technical and economic efficiency of the Siemens SGT-100 gas turbine equipment was carried out. The expediency of applying the performed studies results of practical application in designing and operating gas turbine machines was substantiated.