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The work is d to improving methods for calculating the cooling system of a microturbine with a rotor on air bearings. When designing gas turbines, it is important to integrate gas-dynamic calculations with thermal finite-element calculations. In practice, the conjugation of temperature fields in solids and liquids, as well as the transfer of thermal loads between the media are carried out using several approaches: direct, non-conjugate and sequential coupled. Numerical simulation of the coupled heat transfer in a cavity formed by the gap between the rotor and stator is carried out. To calculate the flow characteristics of a viscous compressible fluid and heat transfer. The degree of influence on the results of the type of turbulence model used, the influence of taking into account the conjugate heat transfer, is studied. The effect of the mass flow rate of the cooler on the flow structure and the cooling efficiency of the walls of the rotor and stator is investigated. A comparison is made with experimental data. Numerical experiments have shown that in typical cases the flow in the cavity is turbulent. The cooling efficiency has a limit on the flow rate of the cooler. The temperature distribution along the length of the rotor has a noticeable minimum in the region of the middle of the length of the rotor. The significance of the obtained results lies in the fact that the choice of the turbulence model weakly affects the calculation results and taking into account the conjugate nature of heat transfer is necessary.

Scientific, educational, cultural and educational network journal "Journal of Environmental Earth and Еnergy Study (JEEES)", No 3/2020. 

The article examines potential integration of government initiatives in the field of environmental protection and policies aimed at the development of energy sector of the Russian Federation. The analysis, carried out on the basis of national ecological projects and the energy strategy of the Russian Federation, reveals that the two planning areas are practically disjoint. This indicates that integrated approach towards solving the issue of global warming through modification of energy supply and demand patterns, which is dominant in many Western countries, has little political support in Russia. The article concludes that the goal to combat climate change, pronounced by the Russian government, has not been followed through in the factual government plans.

Climate change, combined with exposure to air pollutants, can adversely affect the quality of life of patients with pollinosis. Meteorological factors such as temperature and precipitation can correct the aeropalynological prognosis in different years. With this in mind, the purpose of this article was to study the influence of meteorological factors and pollutants on the dynamics of the pollen content of plants in the air and its modifications associated with climate change. It was established that the temperature increase in the spring in Bishkek favored intensive pollinating of trees and shrubs, and in the fall — of weeds. Precipitation and relative humidity dramatically negatively affected the pollen content, due to fragmentation, the disintegration of native pollen into smaller fragments. Air pollutants influenced both positively (dust, benz–a–pyrene) on the dynamics of the pollen content, and negatively (SO2, NO2, CO). The number of polymorphic, teratomorphic, deformed and fragmented pollen grains, especially of grass and weeds, has increased in the aeropatinological spectrum, which in the future will contribute to the weighting of pollinosis and the development of symptoms of pollen asthma. The obtained results serve as the basis for creating a regional pollen monitoring service, its inclusion in the global network and taking into account the allergenic properties of trees and shrubs when greening cities in the republic.