The article presents result of a research a system of the venting of exhaust gases of the recovery boiler the gas turbine plant through the natural draft cooling tower in the environment. The use of this scheme allows the fl ue gases to lower the temperature of the circulating water at the outlet of the cooling tower to provide a deeper vacuum in the condenser steam turbine combined cycle power plant with simultaneous reduction of capital to build chimneys. As a result of the application of this scheme, an increase in the absolute electric effi ciency of turbines is achieved. As stated in Article method of calculating the removal of exhaust fl ue gas systems with a perforated distributor ring allows to determine the level of engineering design and volume requirements of these systems.

The article presents the results of numerical simulation of the protection system of the mouth of the exhaust tower of a cooling tower with natural traction from freezing. To prevent the formation of ice, it is proposed to install an atmospheric air supply system at the mouth of the cooling tower, which ensures the creation of a protective boundary layer at the inner wall of the cooling tower and allows you to separate the warm moist air of the cooling tower from the cold walls. To test the possibility of using such a scheme, a numerical simulation of the process was performed using the k-SST turbulence model. The use of an additional air flow injection system makes it possible to increase the efficiency and reliability of a naturally aspirated cooling tower and a thermal power plant as a whole. Modeling of the cooling tower protection system from the formation of ice showed the possibility of using this scheme in all ranges of outdoor operating temperatures.

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