May 16 2018 · Combustion plant operators need to know the flue gas flow rate in order to calculate the mass release of pollutant emissions. To give the mass release rate in mg/s the flue gas flow rate (m3/s) is multiplied by the concentration (mg/m3) of pollutant e.g. NOx. Information on the mass release rate is required for numerous purposes including:
Air Flow Rate Calculation (Flue Exhaust Gases). 1 volume of gas requires So 12.5 times the gas volume are approx exhausted from the chimney. Example. 1000 kW boiler operating at 90% efficiency gives burner firing rate of 1099 kW.