ABSTRACT
Combustion represents a series of exothermic reactions between the coal (fuel) and oxygen or air at elevated temperatures.
The reactions are:
2C + O2 → 2CO + 52.8 Kcal (37.1.1) 2CO +O2 → 2CO2 + 135.3 Kcal (37.1.2) C + O2 → CO2 + 94.1 Kcal (37.1.3)
Conditions for firing coal to the best advantage consist in distributing the air required for combustion in such a manner as to avoid the escape of unburned gases while using the minimum excess of air.
