Vladimir Gubin

Acid Droplet Formation and Movement in an Industrial Region Atmosphere

A mathematical model is developed for sedimentation acid precipitate formation within a region of atmosphere adjacent to a thermal electric power station. The effect of ambient temperature on condensation rate is analyzed numerically. Results of numerical studies show that a droplet in flight is heated to the air temperature in summertime. These studies illustrate that an increase in surface temperature leads to its evaporation during movement. Checking the results obtained is carried out by verifying the conservative nature of the difference scheme and solution of test problems.

Numerical Approach to the Assessment of Air Pollution by Solid-Fuel Combustion Products

Results from mathematical modeling of acid-rain formation and its deposition in areas adjacent to an energy complex are presented. Four periods characteristic of regions with a sharply continental climate are examined. The effect of convective factors on acid-rain formation is established. The influence of the solar-energy flux on this process is analyzed.

Study of the influence of heating rate on the process of grate gasification of Balakhta and Osinnikovsky coal deposits

Experimental research of the influence of heating rate on gasification process of 3B and T coal from Balakhta and Osinnikovsky deposits were conducted in order to determine the optimal mode of heating in the environment with high intensification of combustible gases release. Relative content of carbon and nitrogen monoxide, water vapor, carbon dioxide was established at four heating rates in the range between 5 and 30 K/min followed by determining the optimal heating rate of coal.