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

it has heating value

it helps in electrostatic precipitation of ash in flue-gases

it leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low

it erodes furnace walls