in a steam power plant, 2.5 kg of coal is consumed per second and air required for combustion is 16 kg per kg coal fired. Air enters at 27°C and the barometric pressure is 98.5 kPa. The flue gases enter the chimney at a temperature of 300°C and leave at a temperature of 220°C. The ash loss is expected to be 12 % of the consumed fuel. A theoretical dra
If we were to calculate the height of the chimney
The specific volume of 1 kg of flue gas at NTP
The specific volume of m kg of air per kg fuel at temperature T
Density of air
Mass of the gas will be m+1 per kg of fuel burnt and the temperature T.
Density of flue gas