provide air around burners for obtaining optimum combustion

transport and dry the coal

cool the scanners

convert CO (formed in lower zone of furnace) into C02 at higher zone.

same value

higher value

lower value

lower/higher depending on steam flow

high burning rate is possible

heat release can be easily controlled

fuel burns economically

it is the best technique for burning high ash content fuel having low fusion ash

temperature, time, and turbulence

total air, true fuel, and turbulence

thorough mixing, total air, and temperature

total air, time, and temperature

to provide proper conditions for continuous complete combustion

mix fuel with air and ignite

separate ash from coal

maintain heat supply to prepare and ignite the incoming fuel