3937Chemical EngineeringMedium
In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of________?
ADrying of coal
BCombustion of coal by supplying it around the burner
CPreheating the primary air
DTransportation of coal
Correct answer
B. Combustion of coal by supplying it around the burner
Explanation
The correct answer is Combustion of coal by supplying it around the burner.