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Predesign of height of a chimney
Calculation of the height of the chimney in the following sequence:
1. The calculation of fuel consumption.
2. Calculation of pollutant emissions:
-emissions of particulate matter;
-emissions of sulfur oxides;
-emissions of nitrogen oxides;
3. Calculation of the height of the chimney.
4. Checking the correctness of the choice of height chimney.
5. Maximum ground level concentration of each substance.
6. Analysis of the concentration of contaminants on the distance from the emission source during adverse weather conditions.

Coefficient depending on the temperature stratification of the atmosphere to the adverse weather conditions, which determines the horizontal and vertical dispersion of harmful substances in the air , с2/3 mg K1/3 / g:  
Dimensionless coefficient that takes into account the rate of subsidence of harmful substances in the air (the value of the dimensionless coefficient equal to 1, as the speed of the ordered deposition of gaseous pollutants and fine aerosol is practically zero):  
Mass of harmful substances emitted into the atmosphere per unit of time (with the release of sulfur dioxide and sulfur dioxide into account their combined effect on the atmosphere. In this case, the release is a release of sulfur dioxide on the expression МSO2 + 5.88 МNO2):  
Dimensionless coefficient that takes into account the conditions exit gases from the chimney:  
Dimensionless coefficient that takes into account the conditions exit gases from the chimney:  
Dimensionless coefficient that takes into account the effect of terrain (in case of a flat or slightly rough terrain with a height difference of no more than 50 m to 1 km, this factor equals 1):  
Background contamination from other sources:  
The number of identical stacks:  
The volume of flue gas falls on chimneys, m3/с:  
Temperature of exhaust gases of atmospheric, K:  
Ambient air (mean maximum ambient air temperature of the hottest month), K:  
Maximum permissible concentration of substances, limiting the purity of air pool, mg/m3 (MPCSO2 = 0.5 mg/m3, а MPCNO2 = 0.2 mg/m3):  
  
Calculated chimney height, m:  


Source: Designing Gas [http://www.proekt-gaz.ru]
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