Kobalava H. Improvement of the Multistage Compressors Intercooling System by Using a Thermopressor.

The thesis is devoted to the study of thermophysical processes in the thermopressor. This apparatus is used for intercooling of compressed air in order to reduce power consumption by energy plant multistage compressors. A finely dispersed spray of water with isothermal compression in the next stage of the compressor with an additional increase in the total pressure by 1–5 % are provided in the case of using a thermopressor. At the same time, the reduction in power consumption by the power plant multistage compressors has been about 10 %. This, in turn, made it possible to increase the efficiency of gas turbines by 1–2 % with a corresponding decrease in the specific fuel consumption by 5–10 g/(kW∙h). A mathematical model has been developed for calculating the thermohydrodynamic parameters of the intercooling process of compressed air in the thermopressor (the change in the water droplet diameter in a polydisperse flow, the transfer and evaporation processes of a water droplet in the air flow moving at a transonic speed of Mach 0.4–0.8). It makes possible to ensure a rational organization of working processes and a maximum pressure increase of 1–5% and a high dispersion of spraying with an average droplet diameter in the flow up to 20 microns.